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Old 04-24-2007, 09:41 PM
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G63 AMG, SL65 AMG, CLS550, S550, Tesla Model S Performance, Challenger SRT8
RX8's definatly arent race cars hahha
Old 04-25-2007, 08:02 PM
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Originally Posted by amgdriven
When I was a service writer/assistant manager with a Ford, Mazda and Buick dealership many years ago.....we would have 45k-60k mile RX-7 twin turbos coming in with stalling problems and lack of power. We knew right away it was the apex seals failing.
That wasn't the problem with the cars. Lack of power on a stock car is bad turbo couplers or loose clamps causing boost blow by. The culprit was the IC base hose. Another problem, other than most cars needing a vacuum hose job was failing soleniods.
I have seen literally hundrends of cars that the dealer said needed a new engine and when I did a compresion test guess what? Strong motor...It was always one of the issues I mentioned above. I saw two of these recently, one the dealer said the car had no power and needed new turbos and a new engine. Did a compression test 105 plus on all faces. Lose clamps on the turbo hoses and a snap clip on the turbo actuator fell off causing the second turbo not to come on line. The dealer wanted 15 grand, it was a friend so he bought me a steak.


Originally Posted by amgdriven
Mazda did not allow us to rebuild the engine so they would replace the engine instead. If you were out of warranty....you were out of luck. The engine was @ $18,000 without turbos and a/c so we would send customers to a rotary specialist in Fort Worth. Man, the look on the customer's face when we told them they needed a engine!
There is a reason, the dealers couldn't even diagnose the cars non the less rebuild a rotary engine.

FYI: Carbon lock doesn't cause engine failure unless the carbon is exsessive which is caused by an improperly running engine and that is very, very rare. All you do is start the engine and pour small amounts of water down the intake which "steam cleans" the faces and cleans out the carbon.

I have never seen a 40 or even a 60 thousand mile engine ruined by babying it or carbon lock. I've also seen modified tt rotaries run for over 150,000 miles.
Old 04-25-2007, 10:26 PM
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Originally Posted by Fountain
That wasn't the problem with the cars. Lack of power on a stock car is bad turbo couplers or loose clamps causing boost blow by. The culprit was the IC base hose. Another problem, other than most cars needing a vacuum hose job was failing soleniods.
I have seen literally hundrends of cars that the dealer said needed a new engine and when I did a compresion test guess what? Strong motor...It was always one of the issues I mentioned above. I saw two of these recently, one the dealer said the car had no power and needed new turbos and a new engine. Did a compression test 105 plus on all faces. Lose clamps on the turbo hoses and a snap clip on the turbo actuator fell off causing the second turbo not to come on line. The dealer wanted 15 grand, it was a friend so he bought me a steak.


There is a reason, the dealers couldn't even diagnose the cars non the less rebuild a rotary engine.

FYI: Carbon lock doesn't cause engine failure unless the carbon is exsessive which is caused by an improperly running engine and that is very, very rare. All you do is start the engine and pour small amounts of water down the intake which "steam cleans" the faces and cleans out the carbon.

I have never seen a 40 or even a 60 thousand mile engine ruined by babying it or carbon lock. I've also seen modified tt rotaries run for over 150,000 miles.
Yes, you are a rotarite indeed. Your info is 100% accurate.

-Matt
Old 04-25-2007, 10:32 PM
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Originally Posted by amgdriven
Really? That's strange. Hmmmmm.

read here.............

http://www.rotarydynamics.ca/QA.html#Q1

True, heat can be a cause of apex seal failure. Oddly enough, so would a lack of driving and extended storage time; both causing carbon build up in an engine already known for it's "hot" and "cold" spot dirty combustion. (Rotaries are notorious for poor fuel economy and poor emissions) Hence low mileage RX-7 twin turbos coming in that have been babied my mid-life crisis men seemed to have had the most engine problems.........as I stated above.
Yellow R1 is correct.
Heat causes apex seal failure which will show up as warping or flat spots on the seal. This doesn't happen in stock engines unless the OMP fails. On high reving non turbo cars the apex seal springs collapse over time and compression drops, neither are really issues on a stock FD. I already addressed the carbon build up which is about as rare as a ***** in church.


Originally Posted by amgdriven
TSB's by Mazda argue with you greatly Yellow R1.
Actually most of us take the TSB's with a grain of salt or we modify their suggestions and give Mazda feedback.

Secondly, the site you listed is an independent rotary shop in Canada and those are not Mazda's TSB's.

Reading over their FAQ I don't know where to start. Put it this way, I wouldn't let them work on my 5 year old weed eater.


Originally Posted by amgdriven
Common gen II problem due to most with high mileage and abused. Not in the case I described though.
Usually it's a bad fuel relay pump issue on the second gens.
Old 04-26-2007, 02:19 PM
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Originally Posted by Fountain
That wasn't the problem with the cars. Lack of power on a stock car is bad turbo couplers or loose clamps causing boost blow by. The culprit was the IC base hose. Another problem, other than most cars needing a vacuum hose job was failing soleniods.
I have seen literally hundrends of cars that the dealer said needed a new engine and when I did a compresion test guess what? Strong motor...It was always one of the issues I mentioned above. I saw two of these recently, one the dealer said the car had no power and needed new turbos and a new engine. Did a compression test 105 plus on all faces. Lose clamps on the turbo hoses and a snap clip on the turbo actuator fell off causing the second turbo not to come on line. The dealer wanted 15 grand, it was a friend so he bought me a steak.
So it sounds like you are a third party shop. I'm sure you have seen it all. But what you haven't seen is the warranty claims and how we fixed them. So you, in fact, did not see low mileage cars near or just out of warranty until I was through with them. Congratulations, your an expert rotary doctor and you know ALL the symptoms.......

Originally Posted by Fountain
There is a reason, the dealers couldn't even diagnose the cars non the less rebuild a rotary engine.
Yup, you are the man. What the hell do those stupid Mazda engineers know anyways? Thank God, RX7 owners have you.

Originally Posted by Fountain
FYI: Carbon lock doesn't cause engine failure unless the carbon is exsessive which is caused by an improperly running engine and that is very, very rare. All you do is start the engine and pour small amounts of water down the intake which "steam cleans" the faces and cleans out the carbon.
Really? Man, I'm glad you tools are telling me what happened to our customers. Do you rebuild rotaries in Texas? Anyways, customers did not feel the symptoms right away because they didn't drive them all the time....so when it became obvious, it was too late.

Originally Posted by Fountain
I have never seen a 40 or even a 60 thousand mile engine ruined by babying it or carbon lock. I've also seen modified tt rotaries run for over 150,000 miles.
Since you haven't, it must not of happened. I mean, after all......you are the "rotary man"

Originally Posted by Fountain
Yellow R1 is correct.
Heat causes apex seal failure which will show up as warping or flat spots on the seal. This doesn't happen in stock engines unless the OMP fails. On high reving non turbo cars the apex seal springs collapse over time and compression drops, neither are really issues on a stock FD. I already addressed the carbon build up which is about as rare as a ***** in church.
You rotary guys really take offense to your engines having faults? Do I need to begin with HOW MANY PROBLEMS THEY HAVE HAD WITH THAT ENGINE COMPARED TO MAZDA'S OTHERS? Oh, that's right.....you have seen plenty with 150,000 miles. There's more ****** in church pal.

Originally Posted by Fountain
Actually most of us take the TSB's with a grain of salt or we modify their suggestions and give Mazda feedback.
That is really funny you say that, because you wouldn't make it long as a Master Certified Tech. In fact, you would be fired once the car comes back during the Lemon Law proceedings. Techs must follow the TSB's to cover their asses, in case of law suits. Oh, that's right....you are smarter the engineers that designed the engine.

Originally Posted by Fountain
Secondly, the site you listed is an independent rotary shop in Canada and those are not Mazda's TSB's.
Correction, sparky....I never said what I posted was a TSB. I said TSB's are not agreeing with (yours also) Yellow R1's opinion.

Originally Posted by Fountain
Usually it's a bad fuel relay pump issue on the second gens.
And a quick fix was to put a switch on the fuel pump stop the fuel pump from dumping excessive fuel in the engine by toggling it while starting the engine.(hard start issues, that is)

Rotary engines are soon to be of the past. RX8's are currently having MANY issues at this time also. Maybe you two should apply for jobs with Mazda so you guys can show them how to do it "right"
Old 04-26-2007, 02:53 PM
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Originally Posted by amgdriven
So it sounds like you are a third party shop. I'm sure you have seen it all. But what you haven't seen is the warranty claims and how we fixed them. So you, in fact, did not see low mileage cars near or just out of warranty until I was through with them. Congratulations, your an expert rotary doctor and you know ALL the symptoms.......



Yup, you are the man. What the hell do those stupid Mazda engineers know anyways? Thank God, RX7 owners have you.


Really? Man, I'm glad you tools are telling me what happened to our customers. Do you rebuild rotaries in Texas? Anyways, customers did not feel the symptoms right away because they didn't drive them all the time....so when it became obvious, it was too late.



Since you haven't, it must not of happened. I mean, after all......you are the "rotary man"



You rotary guys really take offense to your engines having faults? Do I need to begin with HOW MANY PROBLEMS THEY HAVE HAD WITH THAT ENGINE COMPARED TO MAZDA'S OTHERS? Oh, that's right.....you have seen plenty with 150,000 miles. There's more ****** in church pal.



That is really funny you say that, because you wouldn't make it long as a Master Certified Tech. In fact, you would be fired once the car comes back during the Lemon Law proceedings. Techs must follow the TSB's to cover their asses, in case of law suits. Oh, that's right....you are smarter the engineers that designed the engine.



Correction, sparky....I never said what I posted was a TSB. I said TSB's are not agreeing with (yours also) Yellow R1's opinion.


And a quick fix was to put a switch on the fuel pump stop the fuel pump from dumping excessive fuel in the engine by toggling it while starting the engine.(hard start issues, that is)

Rotary engines are soon to be of the past. RX8's are currently having MANY issues at this time also. Maybe you two should apply for jobs with Mazda so you guys can show them how to do it "right"
Pal, you have NO idea whom you are talking to. Fountain has built & ported over 1,000 blocks over the last 25 yrs (never had one come back/returned either). He runs CIRCLES around little Mazda techs. He is a freaking rotary Sensei & is consulted upon by rotary race shops routinely. He can/has diagnosed "exotic" rotary engine issues that other speed shops/tuners could not figure out (ceramic seal set clearing issues, tolerences, the effect on compression during cold/hot conditions taking into acount thermal coefficients of expansion of differing metalurgies, etc, etc). Diagnosing little stock 3rd gen issues are a JOKE.

I'd suggest you pipe down or you will be schooled shortly. I've seen it before on other forums (ie the RX-7 Forum). I'm trying to save you from forthcoming embarrasment pal, don't be an azz. And BTW, considering I'm a 40 yr old executive at a high tech firm in Silicon Valley, I don't think I'll be applying for a job at your former employer ("Mazda"). Cars are a hobby & if I did work for an automotive firm, it would not be for "Mazda" nor at the Dealership level (but thanks for the smokin' hot tip).

-Matt
Old 04-26-2007, 05:33 PM
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Originally Posted by Yellow R1
Pal, you have NO idea whom you are talking to. Fountain has built & ported over 1,000 blocks over the last 25 yrs (never had one come back/returned either). He runs CIRCLES around little Mazda techs. He is a freaking rotary Sensei & is consulted upon by rotary race shops routinely. He can/has diagnosed "exotic" rotary engine issues that other speed shops/tuners could not figure out (ceramic seal set clearing issues, tolerences, the effect on compression during cold/hot conditions taking into acount thermal coefficients of expansion of differing metalurgies, etc, etc). Diagnosing little stock 3rd gen issues are a JOKE.
At what point, do you and "karate rotary master" not understand my original post was based on what I dealt with at the dealership. I not talking about any Fast and Furious stage cars at the local rotary "tune" shop and what problems you have seen with YOUR engines. I'm talking about low mileage, non abused cars that where still under or right out of warranty; albeit--TEN years ago. You guys are talking about things that YOU have experienced. I'm talking about problems I've seen with around 7 cars in a two year time period. Not ALL twin turbo RX7's......just some. Congratulations you and fountain can rebuild + trick out a rotary engine.....because I can't. Nor can I attempt to work on one.

Originally Posted by Yellow R1
I'd suggest you pipe down or you will be schooled shortly.
Schooled shortly? Uh, sure. What can you guys say to change what I dealt with? Really? You're right, I was mistaken with my experiences.


Originally Posted by Yellow R1
don't be an azz.
Too late.


Originally Posted by Yellow R1
And BTW, considering I'm a 40 yr old executive at a high tech firm in Silicon Valley, I don't think I'll be applying for a job at your former employer ("Mazda").
First off, damn....your old. Second off, you're funny when you get defensive.

Originally Posted by Yellow R1
-Matt
Hi Matt, I'm Anthony.
Old 04-26-2007, 06:00 PM
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Originally Posted by amgdriven
So it sounds like you are a third party shop. I'm sure you have seen it all. But what you haven't seen is the warranty claims and how we fixed them. So you, in fact, did not see low mileage cars near or just out of warranty until I was through with them. Congratulations, your an expert rotary doctor and you know ALL the symptoms.......
Jokes on you Pal, My buddy owns two Mazda dealerships. I've seen it all, the warranty claims, the TSB's etc. Matter of fact when those Certified Master Mechanics couldn't figure out a tough issue my buddy would call me and I would set them straight.


Originally Posted by amgdriven
Yup, you are the man. What the hell do those stupid Mazda engineers know anyways? Thank God, RX7 owners have you.
They know quite a bit as a matter of fact I have friends who are engineers that work at the Mazda Corp. headquarters in Irving. When I have technical issues I send them the parts and we try and figure out the cause...(I was the one who brought to Mazda's attention the apex seal warpage issues on the 3 piece seals) They don't use them at all...


Originally Posted by amgdriven
Really? Man, I'm glad you tools are telling me what happened to our customers. Do you rebuild rotaries in Texas?
No, but I have friends who own shops in Texas, Gotham Racing RX7, rotary performance etc. Are rotaries in Texas built different than say rotaries in Ohio? Funny stuff.


Originally Posted by amgdriven
Anyways, customers did not feel the symptoms right away because they didn't drive them all the time....so when it became obvious, it was too late.
I'll repeat this again. Carbon lock isn't a cause of failure in a well maintained rotary engine. The only time you get carbon lock is when the engine hasn't been maintained and has high milage. It's very rare. Dealers always blame the engine and the turbos for any problems that arise. It's usually neither but those are cash cow items and the mechanics were never trained correctly nor were they able to trouble shoot the problems with the car. There is a reason there are so many aftermarket rotary tuner shops for a very small number of cars.


Originally Posted by amgdriven
You rotary guys really take offense to your engines having faults? Do I need to begin with HOW MANY PROBLEMS THEY HAVE HAD WITH THAT ENGINE COMPARED TO MAZDA'S OTHERS? Oh, that's right.....you have seen plenty with 150,000 miles. There's more ****** in church pal.
No offense at all. I know the car had many problems, I don't believe Mazda should have released the car until they had the issues ironed out. The problems with the car were mainly vacuum hose issues, soloinod issues and fuel pulsation dampner problems not to mention knick knack stuff. The other problem was dealers and knuckle head service writers that knew nothing about the engine. Go to any RX-7 website and see what they say if you mention the word dealer.



Originally Posted by amgdriven
That is really funny you say that, because you wouldn't make it long as a Master Certified Tech. In fact, you would be fired once the car comes back during the Lemon Law proceedings. Techs must follow the TSB's to cover their asses, in case of law suits. Oh, that's right....you are smarter the engineers that designed the engine.
Well actually I would have zero problems if I wanted to become a Master Certified Tech but I chose another route in life. I hold a bachelors and master degree so being a mechanic has never been my goal. Oh and I am very familiar with TSB's and the procedure when you work in a shop for Mazda, I don't.


Originally Posted by amgdriven
Correction, sparky....I never said what I posted was a TSB. I said TSB's are not agreeing with (yours also) Yellow R1's opinion.
Well "Sparky" you are the one who attempted to make the site you posted from look like they were TSB's. Mazda's TSB's also do agree with me.

Posting that link showed how little you knew about the engines.


Originally Posted by amgdriven
And a quick fix was to put a switch on the fuel pump stop the fuel pump from dumping excessive fuel in the engine by toggling it while starting the engine.(hard start issues, that is)
Wow amazing you got one right! Everybody and their uncle knows it though.

Originally Posted by amgdriven
Rotary engines are soon to be of the past. RX8's are currently having MANY issues at this time also. Maybe you two should apply for jobs with Mazda so you guys can show them how to do it "right"
Don't really care one way or another what happens to the RX-8 or the rotary engine, it's a hunk of iron that you put gas in. Why should I apply for a job when you were the paid hired help?

Last edited by Fountain; 04-26-2007 at 06:04 PM.
Old 04-26-2007, 06:03 PM
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Originally Posted by amgdriven
At what point, do you and "karate rotary master" not understand my original post was based on what I dealt with at the dealership. I not talking about any Fast and Furious stage cars at the local rotary "tune" shop and what problems you have seen with YOUR engines. I'm talking about low mileage, non abused cars that where still under or right out of warranty; albeit--TEN years ago. You guys are talking about things that YOU have experienced. I'm talking about problems I've seen with around 7 cars in a two year time period. Not ALL twin turbo RX7's......just some. Congratulations you and fountain can rebuild + trick out a rotary engine.....because I can't. Nor can I attempt to work on one.


Schooled shortly? Uh, sure. What can you guys say to change what I dealt with? Really? You're right, I was mistaken with my experiences.



Too late.




First off, damn....your old. Second off, you're funny when you get defensive.


Hi Matt, I'm Anthony.
And at what point do you realize we already know "what you saw" & have already surmized you have the experience of a neophyte when it comes to rotary powerplants. Fountain & I have seen/experienced significantly more than "what you saw in Texas". I guess Texas rotaries operate differently than those around the rest of the planet. Pure Genius.

"Karate Rotary Master"? Please, put down the crack pipe & go play with your video games. You are obviously a little kid with minimal hands-on technical knowledge of the subject at hand (you were the ripe age of 19 when the FD was released for production back in '93?). Comical to say the least.

-Matt

Last edited by Yellow R1; 04-26-2007 at 06:06 PM.
Old 04-26-2007, 06:15 PM
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Originally Posted by amgdriven
At what point, do you and "karate rotary master" not understand my original post was based on what I dealt with at the dealership. I not talking about any Fast and Furious stage cars at the local rotary "tune" shop and what problems you have seen with YOUR engines. I'm talking about low mileage, non abused cars that where still under or right out of warranty; albeit--TEN years ago. You guys are talking about things that YOU have experienced. I'm talking about problems I've seen with around 7 cars in a two year time period. Not ALL twin turbo RX7's......just some. Congratulations you and fountain can rebuild + trick out a rotary engine.....because I can't. Nor can I attempt to work on one.
Your point was well taken but I have been around rotary engines for over 25 years. I have seen the issues and warranty claims and problems from every year RX-7 that has exsisted...From both personal experience and from dealers, not to mention race teams and engineers at the other end. I have also owned every generation RX-7 Mazda has made. The main problem and I will say this again was the dealers and mechanics were never trained correctly on the 3rd gen cars. They would make warranty claims on problems that were easily fixed with hoses or solonids etc. You as a service writer had to take their word, unfortunatly. If they give you bad info and claims that leaves you with a bad taste as you went with what they had given you.
Old 04-26-2007, 06:46 PM
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Originally Posted by Fountain
Jokes on you Pal, My buddy owns two Mazda dealerships. I've seen it all, the warranty claims, the TSB's etc. Matter of fact when those Certified Master Mechanics couldn't figure out a tough issue my buddy would call me and I would set them straight.
I think I already stated Mazda techs were not allowed to work on the internals of the engine....just replace it. Can I have your autograph?


Originally Posted by Fountain
They know quite a bit as a matter of fact I have friends who are engineers that work at the Mazda Corp. headquarters in Irving. When I have technical issues I send them the parts and we try and figure out the cause...(I was the one who brought to Mazda's attention the apex seal warpage issues on the 3 piece seals) They don't use them at all...
Very impressive. In fact, your mother should be proud.


Originally Posted by Fountain
No, but I have friends who own shops in Texas, Gotham Racing RX7, rotary performance etc. Are rotaries in Texas built different than say rotaries in Ohio? Funny stuff.
1) Temperature.
2) Our fuel is environment friendly "formulated". Known for its poor fuel economy and its damaging carbon build up. In fact, 4.0 Ford motors have a special process bulletin that decarbons the pistons due to knocking noise caused by the tight clearance of the piston stroke. The formulated fuel also reduces horsepower.(different in DFW Texas then outskirt towns)

Yeah, funny stuff.


Originally Posted by Fountain
I'll repeat this again. Carbon lock isn't a cause of failure in a well maintained rotary engine. The only time you get carbon lock is when the engine hasn't been maintained and has high mileage. It's very rare. Dealers always blame the engine and the turbos for any problems that arise. It's usually neither but those are cash cow items and the mechanics were never trained correctly nor were they able to trouble shoot the problems with the car. There is a reason there are so many aftermarket rotary tuner shops for a very small number of cars.
Read what you just wrote and tell me I'm wrong again.

Well maintained rotary engine is an oxymoron. If you follow the 30,000 mile fuel filter replacement (per Mazda)......you already probably ruined your engine after 60,000. Proper fuel delivery is crucial for that engine. Add that with not allowing the turbos to cool down (cooking engine oil) and repeat slow city driving with already known high carbon residue fuel......BAM. Rare? Not really under the circumstances I just listed.


Originally Posted by Fountain
No offense at all. I know the car had many problems, I don't believe Mazda should have released the car until they had the issues ironed out. The problems with the car were mainly vacuum hose issues, soloinod issues and fuel pulsation dampner problems not to mention knick knack stuff. The other problem was dealers and knuckle head service writers that knew nothing about the engine. Go to any RX-7 website and see what they say if you mention the word dealer.
Rotary engines will remain a hobby. I'm surprised Mazda still builds that piece of sh#t.



Originally Posted by Fountain
I hold a bachelors and master degree so being a mechanic has never been my goal.
I have a bachelors in political science that has nothing to due with my sales career. My goal is to make a lot of money......what's yours?

Originally Posted by Fountain
Well "Sparky" you are the one who attempted to make the site you posted from look like they were TSB's. Mazda's TSB's also do agree with me.
What? Man, I already......never mind.

Originally Posted by Fountain
Posting that link showed how little you knew about the engines.
Do you use flour or corn starch for your gravy?

Originally Posted by Fountain
Wow amazing you got one right! Everybody and their uncle knows it though.
Can you send me a plaque or an award or something. I want my mom to be proud of me, too.

Umm.....was this suppose to be the "schooling" that was coming to me? Yup, you win.
Old 04-26-2007, 06:51 PM
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Originally Posted by Fountain
Your point was well taken but I have been around rotary engines for over 25 years. I have seen the issues and warranty claims and problems from every year RX-7 that has exsisted...From both personal experience and from dealers, not to mention race teams and engineers at the other end. I have also owned every generation RX-7 Mazda has made. The main problem and I will say this again was the dealers and mechanics were never trained correctly on the 3rd gen cars. They would make warranty claims on problems that were easily fixed with hoses or solonids etc. You as a service writer had to take their word, unfortunatly. If they give you bad info and claims that leaves you with a bad taste as you went with what they had given you.
Other then the part of bad taste, you have my respect. I'm not upset with Mazda, hell I love Mazda. I made a wicked good living from their problems in my teens/early twenties. As to your claim of bad info, maybe. But, read my above post. We had Mazda engineers visit our shop because of it.
Old 04-26-2007, 11:35 PM
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Originally Posted by amgdriven
I think I already stated Mazda techs were not allowed to work on the internals of the engine....just replace it. Can I have your autograph?
I know the Mazda techs were not allowed to work on the engines. You are missing my point. The engines weren't the problem 9 out of 10 times, it was missed diagnosing the problem and blaming the engine or the turbos.



Originally Posted by amgdriven
1) Temperature.
2) Our fuel is environment friendly "formulated". Known for its poor fuel economy and its damaging carbon build up. In fact, 4.0 Ford motors have a special process bulletin that decarbons the pistons due to knocking noise caused by the tight clearance of the piston stroke. The formulated fuel also reduces horsepower.(different in DFW Texas then outskirt towns)

Yeah, funny stuff.
Sure is, Texas isn't the only state who uses re-formulated fuels and additives nor does Texas have tempature variations that are that are different than many states, especially surrounding states. Here's the kicker, I called my buddy who has a shop in the DFW area and asked him if there was any difference in carbon build up in the cars he was seeing when he was California then the cars he sees in now...NONE. Rotary engines burn much hotter than piston engines so carbon build up is rare as I stated. Fuel addatives and reformulated mixtures won't make a bit of a difference. What will as I have said earlier was an improperly running engine and also running synthetic oil.


Originally Posted by amgdriven
Read what you just wrote and tell me I'm wrong again.
Ok, you are wrong again. Come on that was funny and you know it.

Originally Posted by amgdriven
Well maintained rotary engine is an oxymoron. If you follow the 30,000 mile fuel filter replacement (per Mazda)......you already probably ruined your engine after 60,000.
I've seen guys run 100,000 miles on the original filters so that isn't all true. Changing the fuel filter every 20,000 is good practice. I've seen the wrong plugs put in the engine, air filters removed etc.

Originally Posted by amgdriven
Proper fuel delivery is crucial for that engine.
True but the stock system on the car is very robust. The engine makes 255 hp @ the flywheel bone stock. The fuel system is good for roughly 380-400 hp. You can even run the injectors at 100% duty cycles which is unheard of and they operate fine. Mazda did a great job when it comes to that aspect of the car.

Originally Posted by amgdriven
Add that with not allowing the turbos to cool down (cooking engine oil) and repeat slow city driving with already known high carbon residue fuel......BAM. Rare? Not really under the circumstances I just listed.
The turbos are also water cooled so cool down isn't a huge problem like cars which have oil cooled turbos only. "Coking" of the oil in the turbos has never been an issue with the turbos because of their design. What causes the turbos to go is cracking of the exhaust manifold which takes 80,000 miles plus, especially at stock boost levels. The underhood tempatures after the car is shut down causes the vacuum hoses to become brittle and the soloniods to fail. The mechanics quickly blame the turbos because they don't have the proper training or know how to diagnos the problem. We used to trade high milage worn out turbos with "bad ones" from the dealer frequently. They always worked perfect.

Rare just as I stated.

Originally Posted by amgdriven
Rotary engines will remain a hobby. I'm surprised Mazda still builds that piece of sh#t.
You mean the most winning engine in IMSA history? The rotary engine that won the 24 hours of Lemans outright? I guess we are all entitled to our opinions.



Originally Posted by amgdriven
I have a bachelors in political science that has nothing to due with my sales career. My goal is to make a lot of money......what's yours?
Good for you. I recieved my bachelors in Governmental Statistical Policy Analysis, similar...

Money? I already have.


Originally Posted by amgdriven
Can you send me a plaque or an award or something. I want my mom to be proud of me, too.
Aren't you bit old to be looking for adulation from your mom?



Originally Posted by amgdriven
Umm.....was this suppose to be the "schooling" that was coming to me? Yup, you win.
I don't know about schooling but I did point out some facts.
Old 04-26-2007, 11:38 PM
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Originally Posted by amgdriven
Other then the part of bad taste, you have my respect. I'm not upset with Mazda, hell I love Mazda. I made a wicked good living from their problems in my teens/early twenties. As to your claim of bad info, maybe. But, read my above post. We had Mazda engineers visit our shop because of it.
Old 04-27-2007, 12:43 AM
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http://www.speedtv.com/articles/tech...omotive/36350/

Old 04-28-2007, 08:02 PM
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Originally Posted by Fountain
I know the Mazda techs were not allowed to work on the engines. You are missing my point. The engines weren't the problem 9 out of 10 times, it was missed diagnosing the problem and blaming the engine or the turbos.
Looking back, I can defiantly see your point. Mazda techs were afraid to work on rotaries with the fear (and knowledge of) that Mazda will not assist nor help the tech fix the rotary engine internally. So, the tech had to state engine replacement was the only option. And that's why I stated we were allowed to outsource the repairs to independent shops. And that is where YOU are missing MY point. This was happening at the time of production.....not years later after you hobbyists picked apart the engine and researched its weaknesses. You and your leg humper (yellow R1) come on here trying to "defend" that something so simple as carbon build up will ruin (well, expensive repair) the rotary engine. It is funny how much time and effort you two are taking to disprove my comments when you guys are overlooking the fact that a 40K car can (and commonly so) need an engine prematurely. You two are talking up to and out of your asses to say it was "something else" that caused the failure. Okay, whatever.


Originally Posted by Fountain
Sure is, Texas isn't the only state who uses re-formulated fuels and additives nor does Texas have tempature variations that are that are different than many states, especially surrounding states. Here's the kicker, I called my buddy who has a shop in the DFW area and asked him if there was any difference in carbon build up in the cars he was seeing when he was California then the cars he sees in now...NONE. Rotary engines burn much hotter than piston engines so carbon build up is rare as I stated. Fuel addatives and reformulated mixtures won't make a bit of a difference. What will as I have said earlier was an improperly running engine and also running synthetic oil.
You know, you and leg humper (yellow R1) are spending a lot of time and effort to "research" my accusations. Calling around? Thanks, I feel important now.

Here is ANOTHER site stating carbon build causes apex seal failure. Why the denial? The truth is out there, and it needs to be told.
http://www.rotaryresurrection.com/ro...naldamage.html

Here is ANOTHER site stating storage can cause carbon to flake and jamming apex seal. look at question #9:
http://www.atkinsrotary.com/index.php?pag=8

Here is ANOTHER site talking about the common problem of carbon in a rotary and how it could cause apex seal failure:
http://www.rx7-uk.co.uk/

Here is ANOTHER site talking about...again....CARBON BUILD UP CAUSING ENGINE FAILURE @ 75,000 MILES :
http://uk.cars.yahoo.com/car-reviews...7-2002914.html

Here is one of the MANY forums talking about the issues that I stated...that of course Mr Fountain and Mr Leg Humper (yellow R1) state never really happens....carbon build up....some become creative and actually talk about modifying a system to de-carbon on a "regular" basis. Hmmmm....
http://www.rx7club.com/showthread.php?t=33778
But, giving credit where credit is do....it does mention your water vapor trick.

But what I don't get is your point to coming here.....you state

Originally Posted by Fountain
FYI: Carbon lock doesn't cause engine failure unless the carbon is excessive which is caused by an improperly running engine and that is very, very rare. All you do is start the engine and pour small amounts of water down the intake which "steam cleans" the faces and cleans out the carbon.
Okay, I can buy that. But I said it was never caught and most likely too late when that brought it in to me. You state that carbon build up happens and give a technique to fix it and state it is rare for carbon build up to cause apex seal failure. Really? Everyone else states it is common for it to have carbon build up. Then you quote:

Originally Posted by Fountain
I already addressed the carbon build up which is about as rare as a ***** in church.
Now carbon build-up in general is rare? Well what is it? Make up your mind.

Originally Posted by Fountain
Ok, you are wrong again.
Me? How? I stated rotaries had problems with premature apex failure and we (dealership) told them they need a new engine....if not, go to a third party shop and have them "rebuild" it. What in the hell is your point? Because you:

1) Told me I was wrong with saying apex failure caused the problems we had with the cars. Really? Compression test and other results had to be given to customer before we could ask for $18,000. We tried, they said no....so we told them they can get it done cheaper elsewhere........

2) Told me carbon lock was rare to cause apex failure.Really? At what in the hell point do you know when the car was taken to my service department?

3) Told me that carbon was not a problem with the rotary engine. Really?


Originally Posted by Fountain
I've seen guys run 100,000 miles on the original filters so that isn't all true. Changing the fuel filter every 20,000 is good practice. I've seen the wrong plugs put in the engine, air filters removed etc.
http://www.sportcompactcarweb.com/pr...t_2/index.html

Strange, it seems a lot of people think differently. Why is it, only you know the "real" truth about rotaries and everyone else is "clueless"? From now on, you will be referred to as, ROTARY GOD. It was you, not Moses, that split the Red Sea. And ONLY YOU can, not Chuck Norris, slam a revolving door.

Originally Posted by Fountain
True but the stock system on the car is very robust. The engine makes 255 hp @ the flywheel bone stock. The fuel system is good for roughly 380-400 hp. You can even run the injectors at 100% duty cycles which is unheard of and they operate fine. Mazda did a great job when it comes to that aspect of the car.
You missed the boat on that one. I was talking about the importance of a properly flowing fuel system for the reliability of the rotary engine.

Originally Posted by Fountain
The turbos are also water cooled so cool down isn't a huge problem like cars which have oil cooled turbos only. "Coking" of the oil in the turbos has never been an issue with the turbos because of their design. What causes the turbos to go is cracking of the exhaust manifold which takes 80,000 miles plus, especially at stock boost levels. The underhood tempatures after the car is shut down causes the vacuum hoses to become brittle and the soloniods to fail. The mechanics quickly blame the turbos because they don't have the proper training or know how to diagnos the problem. We used to trade high milage worn out turbos with "bad ones" from the dealer frequently. They always worked perfect.
Just about EVERY forum out there (with turbo RX-7s) talk about the importance of proper cool down. (well, all turbo's actually) Once again, you are selecting whats important to your opinion.


Originally Posted by Fountain
You mean the most winning engine in IMSA history? The rotary engine that won the 24 hours of Lemans outright? I guess we are all entitled to our opinions.
Umm, no. Actually the one that gets Mazda in trouble every time they sell it to the public.

Originally Posted by Fountain
Money? I already have.
My mid-life crisis crack struck a nerve with you and leg humper, didn't it.


Originally Posted by Fountain
Aren't you bit old to be looking for adulation from your mom?
What?

Originally Posted by Fountain
I don't know about schooling but I did point out some facts.
No, just YOUR facts.
Old 04-29-2007, 02:38 PM
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Originally Posted by amgdriven
Looking back, I can defiantly see your point. Mazda techs were afraid to work on rotaries with the fear (and knowledge of) that Mazda will not assist nor help the tech fix the rotary engine internally. So, the tech had to state engine replacement was the only option. And that's why I stated we were allowed to outsource the repairs to independent shops. And that is where YOU are missing MY point. This was happening at the time of production.....not years later after you hobbyists picked apart the engine and researched its weaknesses. You and your leg humper (yellow R1) come on here trying to "defend" that something so simple as carbon build up will ruin (well, expensive repair) the rotary engine. It is funny how much time and effort you two are taking to disprove my comments when you guys are overlooking the fact that a 40K car can (and commonly so) need an engine prematurely. You two are talking up to and out of your asses to say it was "something else" that caused the failure. Okay, whatever.




You know, you and leg humper (yellow R1) are spending a lot of time and effort to "research" my accusations. Calling around? Thanks, I feel important now.

Here is ANOTHER site stating carbon build causes apex seal failure. Why the denial? The truth is out there, and it needs to be told.
http://www.rotaryresurrection.com/ro...naldamage.html

Here is ANOTHER site stating storage can cause carbon to flake and jamming apex seal. look at question #9:
http://www.atkinsrotary.com/index.php?pag=8

Here is ANOTHER site talking about the common problem of carbon in a rotary and how it could cause apex seal failure:
http://www.rx7-uk.co.uk/

Here is ANOTHER site talking about...again....CARBON BUILD UP CAUSING ENGINE FAILURE @ 75,000 MILES :
http://uk.cars.yahoo.com/car-reviews...7-2002914.html

Here is one of the MANY forums talking about the issues that I stated...that of course Mr Fountain and Mr Leg Humper (yellow R1) state never really happens....carbon build up....some become creative and actually talk about modifying a system to de-carbon on a "regular" basis. Hmmmm....
http://www.rx7club.com/showthread.php?t=33778
But, giving credit where credit is do....it does mention your water vapor trick.

But what I don't get is your point to coming here.....you state



Okay, I can buy that. But I said it was never caught and most likely too late when that brought it in to me. You state that carbon build up happens and give a technique to fix it and state it is rare for carbon build up to cause apex seal failure. Really? Everyone else states it is common for it to have carbon build up. Then you quote:



Now carbon build-up in general is rare? Well what is it? Make up your mind.



Me? How? I stated rotaries had problems with premature apex failure and we (dealership) told them they need a new engine....if not, go to a third party shop and have them "rebuild" it. What in the hell is your point? Because you:

1) Told me I was wrong with saying apex failure caused the problems we had with the cars. Really? Compression test and other results had to be given to customer before we could ask for $18,000. We tried, they said no....so we told them they can get it done cheaper elsewhere........

2) Told me carbon lock was rare to cause apex failure.Really? At what in the hell point do you know when the car was taken to my service department?

3) Told me that carbon was not a problem with the rotary engine. Really?



http://www.sportcompactcarweb.com/pr...t_2/index.html

Strange, it seems a lot of people think differently. Why is it, only you know the "real" truth about rotaries and everyone else is "clueless"? From now on, you will be referred to as, ROTARY GOD. It was you, not Moses, that split the Red Sea. And ONLY YOU can, not Chuck Norris, slam a revolving door.


You missed the boat on that one. I was talking about the importance of a properly flowing fuel system for the reliability of the rotary engine.



Just about EVERY forum out there (with turbo RX-7s) talk about the importance of proper cool down. (well, all turbo's actually) Once again, you are selecting whats important to your opinion.



Umm, no. Actually the one that gets Mazda in trouble every time they sell it to the public.


My mid-life crisis crack struck a nerve with you and leg humper, didn't it.



What?


No, just YOUR facts.
You have the maturity level & rotary knowledge of a 7th grade kid. It's absolutley comical reading your opinions about 3rd gen powerplants (and your childish name calling antics). I especially like the links you keep posting. This one in particular.... http://www.rx7-uk.co.uk/ Are you kidding me? It's some UK "Joe Blow" giving his various personal opinions about the pros & cons of his 2 old rotary cars. He has never even OWNED a 3rd Gen RX-7, let alone WORKED on one. This is where you are getting information (coupled with your vast experience as a 19 yr old working as a Clerk at a Mazda dealer for a few years)?! Wait, last one - promise!.....this is my 2nd favorite, http://uk.cars.yahoo.com/car-reviews...7-2002914.html It's a post from some UK Yahoo editorial writer - oooohhh noooo - another rotary "expert"! This rotary pro speaks of, "rotor tip wear" at 75,000 miles (not carbon build up as you stipulated). In either case, neither is right! There is no such thing as "rotor tip wear? He also went on to talk about how the 968 was a better handling car than the FD? Errr, no....not even close Sherlock. This stuff just keeps getting funnier & funnier!

We both tried helping you, yet you continue to resort to adolescent behavior.
Tell ya what, after you have built & ported over 1,000 12A & 13B blocks for over 26 years for customers all over the US, we'll start listening. Hint: large bold face font ain't helping your cause. Uh oh.... seems you are on probation, maybe some others are also telling you to cool off a bit?

-Matt

Last edited by Yellow R1; 04-29-2007 at 02:44 PM.
Old 04-29-2007, 03:46 PM
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Originally Posted by amgdriven
Looking back, I can defiantly see your point. Mazda techs were afraid to work on rotaries with the fear (and knowledge of) that Mazda will not assist nor help the tech fix the rotary engine internally. So, the tech had to state engine replacement was the only option. And that's why I stated we were allowed to outsource the repairs to independent shops.
Mazda would never let their dealers out source to independent shops especially on a warranty repair when the engines first came out. They would have no way to determine the failure of the problem, the quality of the work etc.

Originally Posted by amgdriven
And that is where YOU are missing MY point. This was happening at the time of production.....not years later after you hobbyists picked apart the engine and researched its weaknesses.
Again you don't know what you are talking about. The four port 13b has been in production for over 25 years.

Originally Posted by amgdriven
You and (yellow R1) come on here trying to "defend" that something so simple as carbon build up will ruin (well, expensive repair) the rotary engine. It is funny how much time and effort you two are taking to disprove my comments when you guys are overlooking the fact that a 40K car can (and commonly so) need an engine prematurely. You two are talking up to and out of your asses to say it was "something else" that caused the failure. Okay, whatever.
Wrong again. I said it can happen but it's VERY, VERY rare and when it does happen it's almost always caused by improper maintinence.

Originally Posted by amgdriven
Here is ANOTHER site stating carbon build causes apex seal failure. Why the denial? The truth is out there, and it needs to be told.
http://www.rotaryresurrection.com/ro...naldamage.html
Hey that's my good friend Kevin, he called me last week to discuss apex seal warpage on one of his customers cars with a single turbo.

Did you even read YOUR OWN LINK? IT'S EXACTLY WHAT I SAID!

poor oilchange habits (since crankcase oil gets injected and burned via the OMP) are the worst contributors. Over time, the carbon builds up and can cause seals to stick. Its even possible for a chunk to fall off and cause a seal to break. Removing the OMP system and running premix can help combat carbon buildup and keep the internals clean and moving freely. Also, regular treatments of water injection can help steam clean the internals (there is a writeup elsewhere in the tech section about this).
Sometimes you hear people talk about carbon lock in a rotary. This is said to be when carbon jams itself in a corner of the engine and prevents it from turning…most of the time people refer to this when they have a engine that seized during shutdown or startup (cranking, slow rotation). IN reality, carbon lock in a rotary is very rare. The only time, in disassembling at least a few hundred cores, that Ive seen true carbon lock was on my personal FD when I bought it.
Originally Posted by amgdriven
Here is ANOTHER site stating storage can cause carbon to flake and jamming apex seal. look at question #9:
http://www.atkinsrotary.com/index.php?pag=8
Hey, that's another friend of mine, Dan Atkins. Did you read what he says? Same thing! Poor maintinence.

If poor fuel, spark plugs or wires are bad etc. - excessive build up can happen, and cause problems.
Originally Posted by amgdriven
Here is ANOTHER site talking about the common problem of carbon in a rotary and how it could cause apex seal failure:
http://www.rx7-uk.co.uk/
Some guys website who doesn't even build rotary engines is proof? Proof of what? He can write something and put it up on a website?

Originally Posted by amgdriven
Here is ANOTHER site talking about...again....CARBON BUILD UP CAUSING ENGINE FAILURE @ 75,000 MILES :
http://uk.cars.yahoo.com/car-reviews...7-2002914.html
Again second hand hearsay, not an engine builder or rotary expert.

Originally Posted by amgdriven
Here is one of the MANY forums talking about the issues that I stated...that of course Mr Fountain and Mr Leg Humper (yellow R1) state never really happens....carbon build up....some become creative and actually talk about modifying a system to de-carbon on a "regular" basis. Hmmmm....
http://www.rx7club.com/showthread.php?t=33778
But, giving credit where credit is do....it does mention your water vapor trick.
I also know Rob Golden at Pinapple.
As I said you can clean the carbon off the rotors by pouring a slight bit of water down the intake plentum. The reason for doing so is to keep the rotor faces clean which is important with high hp boosted rotaries, it can stop detonation. It has nothing to do with the engine be ruined by carbon lock.

Originally Posted by amgdriven
You state that carbon build up happens and give a technique to fix it and state it is rare for carbon build up to cause apex seal failure. Really? Everyone else states it is common for it to have carbon build up.

Now carbon build-up in general is rare? Well what is it? Make up your mind.
My explaination is correct. It's rare as Kevin and I and others have said. It's mainly an issue on high hp rotaries where you want clean rotor faces or when a car has been neglected. Very simple.

That was an article by Shiv Pathic who had no experience with rotary engines. he recieved most of his education fro Brian @ Mostly Mazda, who is now out of business and Shane racing. Cool down the car so the seals between the rotor housings have time to cool down? Funny stuff.

Originally Posted by amgdriven
Strange, it seems a lot of people think differently. Why is it, only you know the "real" truth about rotaries and everyone else is "clueless"? From now on, you will be referred to as, ROTARY GOD. It was you, not Moses, that split the Red Sea. And ONLY YOU can, not Chuck Norris, slam a revolving door.
Is that why the credible links you posted for engine builders supported what I have been saying the entire thread?


Originally Posted by amgdriven
You missed the boat on that one. I was talking about the importance of a properly flowing fuel system for the reliability of the rotary engine.
No I didn't, you missed mine. The fuel system flows so well I have seen clogged injectors (25% Plus) and the car still ran fine even under full boost.

Originally Posted by amgdriven
Just about EVERY forum out there (with turbo RX-7s) talk about the importance of proper cool down. (well, all turbo's actually) Once again, you are selecting whats important to your opinion.
No, the turbos are water cooled and oil cooled, do a serach on turbo timers for the RX-7 and see waht they say.

Originally Posted by amgdriven
Umm, no. Actually the one that gets Mazda in trouble every time they sell it to the public.
You mean the RX-7 that was sports car of the year for Car @ Driver? The car that sold hundrends of thousands of units? Funny stuff.

Originally Posted by amgdriven
My mid-life crisis crack struck a nerve with you and leg humper, didn't it.
Uh no...


Originally Posted by amgdriven
No, just YOUR facts.:
My facts are spot on.

Oh and since I'm talking out of my "azz" with over 25 years of experience and hundreds and hundrends engines built including build them for race shops etc. and ship them all over the country maybe you can tell us all your experience? Other than Joe's website?????

Lastly what's with all the hostility? I think I have been more than nice to you even after your nasty jabs...shame you can do the same back.

Last edited by Fountain; 04-29-2007 at 04:17 PM.
Old 04-29-2007, 05:42 PM
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Originally Posted by Fountain
Mazda would never let their dealers out source to independent shops especially on a warranty repair when the engines first came out. They would have no way to determine the failure of the problem, the quality of the work etc.
Why would I ask someone for $18,000 if it was under warranty? Spot on, there.

Originally Posted by Fountain
Again you don't know what you are talking about. The four port 13b has been in production for over 25 years.
I dealt with Gen III twin turbos. You, know....Gen III twin turbos that had more problems then the Gen I and Gen II. (Gen II single turbos were rare, I didn't deal with them much)

Originally Posted by Fountain
Wrong again. I said it can happen but it's VERY, VERY rare and when it does happen it's almost always caused by improper maintinence.
What? You are missing the point of it happening. I can give a rats *** on how or why "you" think it happens. It happens. That is my point.

Originally Posted by Fountain
Hey that's my good friend Kevin, he called me last week to discuss apex seal warpage on one of his customers cars with a single turbo.
Tell Kevin, Amgdriven says .........

Originally Posted by Fountain
Did you even read YOUR OWN LINK? IT'S EXACTLY WHAT I SAID!
Correction, you said carbon build up is rare. I'm proving it happens and COULD happen. Make up your mind Rotary God.

Originally Posted by Fountain
Hey, that's another friend of mine, Dan Atkins. Did you read what he says? Same thing! Poor maintinence.
Oh, ****...here we go. You said it is not common. So I post different sources showing it happens. If so rare, why are so many people talking about it?



Originally Posted by Fountain
Some guys website who doesn't even build rotary engines is proof? Proof of what? He can write something and put it up on a website?
Exactly my point on why you are here.

Originally Posted by Fountain
Again second hand hearsay, not an engine builder or rotary expert.
Rotary God speaks and the earth trembles.

Originally Posted by Fountain
I also know Rob Golden at Pinapple.
As I said you can clean the carbon off the rotors by pouring a slight bit of water down the intake plentum. The reason for doing so is to keep the rotor faces clean which is important with high hp boosted rotaries, it can stop detonation. It has nothing to do with the engine be ruined by carbon lock.
Let me quote the rest of his comments. It seems you "forgot" to post this.I will highlight the things I have already quoted earlier in this post.

"CARBON BUILDUP and carbon lock:
You hear a lot of talk about carbon buildup in rotaries. There are many potential causes, the general consensus is that lack of redlining the engine, and poor oilchange habits (since crankcase oil gets injected and burned via the OMP) are the worst contributors.(you mentioned this earlier, I didn't doubt it.) Over time, the carbon builds up and can cause seals to stick. Its even possible for a chunk to fall off and cause a seal to break. Removing the OMP system and running premix can help combat carbon buildup and keep the internals clean and moving freely. Also, regular treatments of water injection can help steam clean the internals (there is a writeup elsewhere in the tech section about this). Sometimes you hear people talk about carbon lock in a rotary. This is said to be when carbon jams itself in a corner of the engine and prevents it from turning…most of the time people refer to this when they have a engine that seized during shutdown or startup (cranking, slow rotation). IN reality, carbon lock in a rotary is very rare. The only time, in disassembling at least a few hundred cores, that Ive seen true carbon lock was on my personal FD when I bought it. There was literally 1/8” thickness of carbon on the face of each rotor, and it finally got so thick that it contacted the rotorhousing walls and could no longer spin. These are not pics of that engine, but they show a fair amount of carbon buildup on a neglected (low mileage) engine."
"Neglect" for a rotary engine is different then "neglect" for a piston engine. Not "redlining" an engine is neglect to you guys? That explains problems with the "babied" low mileage Rx-7's.That's the problem with many of the owners of RX-7's I dealt with 12 years ago, they don't know. I'm not talking the entire world shared my experience. Just some of my customers. You say I was wrong with my experiences and questioning what I dealt with. At what point can you not understand that?


Originally Posted by Fountain
My explaination is correct. It's rare as Kevin and I and others have said. It's mainly an issue on high hp rotaries where you want clean rotor faces or when a car has been neglected. Very simple.
Simple? Not for you, apparently. I said Gen III twin turbo RX-7's gave some customers with low mileage problems, some leading to a "new engine" You come on here trying to defend the "rotary way of life"



Originally Posted by Fountain
That was an article by Shiv Pathic who had no experience with rotary engines. he recieved most of his education fro Brian @ Mostly Mazda, who is now out of business and Shane racing. Cool down the car so the seals between the rotor housings have time to cool down? Funny stuff.
Rotary God speaks and the earth trembles.

Originally Posted by Fountain
Is that why the credible links you posted for engine builders supported what I have been saying the entire thread?
You just don't get it, do you?


Originally Posted by Fountain
No I didn't, you missed mine. The fuel system flows so well I have seen clogged injectors (25% Plus) and the car still ran fine even under full boost.
I like red seedless grapes, not the green ones.

Originally Posted by Fountain
No, the turbos are water cooled and oil cooled, do a serach on turbo timers for the RX-7 and see waht they say.
Man, ALL turbos need a quick cool down. Yeah, read the posts........

Originally Posted by Fountain
You mean the RX-7 that was sports car of the year for Car @ Driver? The car that sold hundrends of thousands of units? Funny stuff.
Any engine that has a life expectancy of under 100,000 miles stock is not a prize winner. RX-8 is approaching a total recall on the rotaries due to major problems. You're alone on that one. Well, not really....you have leg humper.

Originally Posted by Fountain
My facts are spot on.
Shhhhh......do you hear that? That's reason knocking, go answer it.

Originally Posted by Fountain
Oh and since I'm talking out of my "azz" with over 25 years of experience and hundreds and hundrends engines built including build them for race shops etc. and ship them all over the country maybe you can tell us all your experience? Other than Joe's website?????
I'm saying that the RX-7 is prone for problems. I dealt with those problems with "normal, non-rotary loving customers" Not freaks like you guys that can justify and write-off any problem with your beloved engines. Everyday customers that were shocked to see a low mileage car give them problems when NO other piston-type car has in their previous car ownership.Is it really hard for you to understand where I coming from?

Originally Posted by Fountain
Lastly what's with all the hostility? I think I have been more than nice to you even after your nasty jabs...shame you can do the same back.
Why are you here? What is your point on coming here and trying to defend the rotary engine? You and leg humper are going in circles to prove a pointless point. I said it happened and proved it could happen. You say it is rare and it was the customer's fault for their problems. Rotary God speaks and no one gives a ****. Take leg humper with you.
Old 04-29-2007, 06:08 PM
  #45  
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Originally Posted by Yellow R1
You have the maturity level & rotary knowledge of a 7th grade kid.
I must be getting better, then.

Originally Posted by Yellow R1
It's absolutley comical reading your opinions about 3rd gen powerplants (and your childish name calling antics). I especially like the links you keep posting. This one in particular.... http://www.rx7-uk.co.uk/ Are you kidding me? It's some UK "Joe Blow" giving his various personal opinions about the pros & cons of his 2 old rotary cars. He has never even OWNED a 3rd Gen RX-7, let alone WORKED on one. Wait, last one - promise!.....this is my 2nd favorite, http://uk.cars.yahoo.com/car-reviews...7-2002914.html It's a post from some UK Yahoo editorial writer - oooohhh noooo - another rotary "expert"! This rotary pro speaks of, "rotor tip wear" at 75,000 miles (not carbon build up as you stipulated). In either case, neither is right! There is no such thing as "rotor tip wear? He also went on to talk about how the 968 was a better handling car than the FD? Errr, no....not even close Sherlock. This stuff just keeps getting funnier & funnier!
Man, give me some credit........I just picked some from the "29,000" results found on "Rotary engine carbon build up". Sorry if they don't qualify to you.

Originally Posted by Yellow R1
We both tried helping you, yet you continue to resort to adolescent behavior.
Help me? With what?

Originally Posted by Yellow R1
Tell ya what, after you have built & ported over 1,000 12A & 13B blocks for over 26 years for customers all over the US, we'll start listening. Hint: large bold face font ain't helping your cause. Uh oh.... seems you are on probation, maybe some others are also telling you to cool off a bit?
First off, Matt......don't get your blood pressure up, at your age...it's dangerous.
Second off, not interested on getting you tools to listen.

It's all in fun, man. Besides, it's just the "kill" thread and that's what I'm doing.

--Anthony

Last edited by amgdriven; 04-29-2007 at 06:30 PM.
Old 04-29-2007, 07:07 PM
  #46  
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Your next response should be good,Rotary God. It is taking almost a 1/2 hour "responding" to this thread.

I can't wait, it feels like Christmas Eve.

Last edited by amgdriven; 04-29-2007 at 07:11 PM.
Old 04-29-2007, 07:21 PM
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Originally Posted by amgdriven
Why would I ask someone for $18,000 if it was under warranty? Spot on, there.
You didn't do either, warranty or non warranty. It's a lie.


Originally Posted by amgdriven
I dealt with Gen III twin turbos. You, know....Gen III twin turbos that had more problems then the Gen I and Gen II. (Gen II single turbos were rare, I didn't deal with them much)
Gen II's all had 13b's! It's the same engine! (Non turbo had 6 ports). The engine isn't the problem, it's the hoses, solonoids etc. Hello ???



Originally Posted by amgdriven
What? You are missing the point of it happening. I can give a rats *** on how or why "you" think it happens. It happens. That is my point
No the point is it's not happening but you have no rotary experience and don't know any better so you keep repeating the same naive comments.



Originally Posted by amgdriven
Correction, you said carbon build up is rare. I'm proving it happens and COULD happen. Make up your mind Rotary God.
Yes I said it's VERY rare. Hint: Rare means it does happen.


Originally Posted by amgdriven
Oh, ****...here we go. You said it is not common. So I post different sources showing it happens. If so rare, why are so many people talking about it?:
No, you posted two sites from sources who don't build rotary engines. The other sources which do backed up exactly what I said, EXACTLY. Kevin stated out of hundreneds and hundrends of engines he has built ONE was from carbon lock! ONE!


Originally Posted by amgdriven
Exactly my point on why you are here.
I have built rotary engines and you? Not a one, it's painfully obvious who knows what they are talking about and who doesn't.


Let me quote the rest of his comments. It seems you "forgot" to post this.I will highlight the things I have already quoted earlier in this post.


Originally Posted by amgdriven
"Neglect" for a rotary engine is different then "neglect" for a piston engine. Not "redlining" an engine is neglect to you guys? That explains problems with the "babied" low mileage Rx-7's.
No, neglect is not changing the oil, bad coils, wires poor maintenance.


Originally Posted by amgdriven
That's the problem with many of the owners of RX-7's I dealt with 12 years ago, they don't know. I'm not talking the entire world shared my experience. Just some of my customers. You say I was wrong with my experiences and questioning what I dealt with. At what point can you not understand that?
Because I've taken apart hundrends of those low milage "babied" engines and there was no big deposits of carbon. How do I know they were babied ? Blown or lose turbo hoses, the second turbo wouldn't even come on line. The difference with you and me is experience, I didn''t take the word of an untrained tech who never took apart a rotary engine. I did it myself.


Originally Posted by amgdriven
Simple? Not for you, apparently. I said Gen III twin turbo RX-7's gave some customers with low mileage problems, some leading to a "new engine" You come on here trying to defend the "rotary way of life"
The question was cleaning the carbon off the rotor faces and why. Not you think customers engines were bad. Try and stay focused here.


Originally Posted by amgdriven
You just don't get it, do you?
No you don't. Your point is irrelevant, Kevin follows it up with;

IN reality, carbon lock in a rotary is very rare. The only time, in disassembling at least a few hundred cores, that Ive seen true carbon lock was on my personal FD when I bought it.
Hello?????

Originally Posted by amgdriven
Any engine that has a life expectancy of under 100,000 miles stock is not a prize winner. RX-8 is approaching a total recall on the rotaries due to major problems.
The RX-8 was getting enough oil which Mazda is addressing. I've seen plenty of RX-8's with over 100,000 miles problem free.


Originally Posted by amgdriven
You're alone on that one. Well, not really....you have leg humper.
Grow up.



Originally Posted by amgdriven
I'm saying that the RX-7 is prone for problems. I dealt with those problems with "normal, non-rotary loving customers" Not freaks like you guys that can justify and write-off any problem with your beloved engines.
Wrong again. I said the problems diagnosed by the dealers on the engines were mistaken. The car had plenty of problems which I mentioned over and over like soloniods, hose couplers, hoses etc. Reading comprehension is critical.


Originally Posted by amgdriven
Everyday customers that were shocked to see a low mileage car give them problems when NO other piston-type car has in their previous car ownership.Is it really hard for you to understand where I coming from?
See above. Yes we know where you are coming from, mechanic without the ability to trouble shoot the car tells you a problem you take it and run with it. No experience in either one of you. We get it.


Originally Posted by amgdriven
Why are you here? What is your point on coming here and trying to defend the rotary engine? You are going in circles to prove a pointless point. I said it happened and proved it could happen.
My point was to set the record straight to somebody who doesn't know what he is talking about. I also said it could happen but it was very rare which it is.


Originally Posted by amgdriven
Rotary God speaks and no one gives a ****.
I'm sure everybody in the rotary world listens to a guy who has never built one, never worked on one and knows nothing about them. Great credientials on the subject.

Originally Posted by amgdriven
I think this will be a very ironic post shortly.
Old 04-29-2007, 07:38 PM
  #48  
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Originally Posted by Fountain
I think this will be a very ironic post shortly.
Yes, ironic indeed. Here you go.....................



My point is that the Gen III is a problematic and finicky piece of sh*t. Period. I have not claimed to know how to build one nor work on one. Just had to deal with angry customers and one lemon law lawsuit. That's all. I commented to a Mercedes Benz forum about major problems with low mileage rotaries that I experienced years ago. You, are here to change the minds and hearts of those that might think the rotary is a piece of crap also. Is it working? Probably not.

Do you also install big wings on your customer's cars? Man, that would be cool.
Old 04-29-2007, 07:44 PM
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Originally Posted by amgdriven
I must be getting better, then.


Man, give me some credit........I just picked some from the "29,000" results found on "Rotary engine carbon build up". Sorry if they don't qualify to you.


Help me? With what?



First off, Matt......don't get your blood pressure up, at your age...it's dangerous.
Second off, not interested on getting you tools to listen.

It's all in fun, man. Besides, it's just the "kill" thread and that's what I'm doing.

--Anthony
Reading comprehension seems to be an issue with you. Here is a another hint: Nobody said carbon build up was an impossibility. What we did say was that it was so RARE it's not even an issue. If you don't change your oil in a piston motor, guess what?.... you will break/cease your motor as well. It's called normal maintenance....not an inherant engine design flaw . And, I have never heard of anyone not running their RX-7 (it also does not need to be redlined to keep the engine, "carbon free". Hilarious stuff!)

You have never even wrenched with an engine but are posting a bunch of internet sites (some are individual 3rd party "nobody's" to substantiate your theories that you heard from some Mazda techs 10 yrs ago (that also couldn't even open a motor or properly diagnose 90% of any of even the most simple issues)?

Leg humper? Yet another mature comment. I don't think you are going to be on this Forum much longer.

-Matt

Last edited by Yellow R1; 04-29-2007 at 07:49 PM.
Old 04-29-2007, 07:54 PM
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Originally Posted by Yellow R1
Reading comprehension seems to be an issue with you. Here is a another hint: Nobody said carbon build up was an impossibility. What we did say was that it was so RARE it's not even an issue. If you don't change your oil in a piston motor, guess what?.... you will break/cease your motor as well. It's called normal maintenance....not an inherant engine design flaw . And, I have never heard of anyone not running their RX-7 (it also does not need to be redlined to keep the engine, "carbon free". Hilarious stuff!)

You have never even wrenched with an engine but are posting a bunch of internet sites (some are individual 3rd party "nobody's" to substantiate your theories that you heard from some Mazda techs 10 yrs ago (that also couldn't even open a motor or properly diagnose 90% of any of even the most simple issues)?

Leg humper? Yet another mature comment. I don't think you are going to be on this Forum much longer.

-Matt
I get this funny feeling you are upset. I know, I know......it's not true. I don't know, I just feel you are trying to tell me something, that's all. You know, that awkward feeling you get when you when give someone a curb sandwich and bystanders are like "damn, amgdriven took it a little too far".

Anyway, I just want you and fountain to know I think the world of you two. No, really....I do. If there is ANYTHING I can do for you guys........I'm just a type away.




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