EREBUS

I cracked #8 a month ago. Crank pulley and supercharger pulley combo was the straw that broke the camel's back. Time to rebuild, brother. PM Shardul and get a short block and don't look back!

Joncl

Try to add a little oil in the cyl 8 and redo the comp test, see if it goes up, if it does go up then your rings are bad

E55Greasemonkey

How many miles on the car? Has the fuel filter ever been replaced?

EREBUS

A wet test will bring it up to 138-146psi. When he pulls out the piston, it will look like the one I posted

Same nightmare, different person

This is my post...


https://mbworld.org/forums/w211-amg/...t-happens.html

Joncl

That sucks man

AgSilver

Yup, sounds like the 'ol #8 lean fairy strikes again.

At this point I believe it's reasonable to say that everybody has been warned.

AMG E Power

so are you saying that if the fuel filter is replaced it would have prevented this ?

WHTE55

I don't believe the fuel filter been replaced.
BUT
I spoke to Jerry and he has offered me to ship my car to him and he will replace the piston at a very low price - I wont have to pay for the actual piston, But I will have to pay for the rest of the parts like head gasket, head bolts and other misc. parts and a little labor.

I am trying to decide if I should send my car over to Texas OR just pull the engine and get the work done at a local machine shop.

shardul

iTrader: (1)

Are you 100 percent sure it is the piston? Used pistons cost about 100 bucks these days

berti_00

Dangg man, srry to hear. . Hope you get all squared out and back on the road

60nomad

If I am reading your odometer correctly...your car has 54k miles on it?!

cnterline

AgSilver

My implications were that if there is a reduction in pressure, for any reason, in a standard rail that #8 injector will be the leanest.

WHTE55

Yes the car has 54K

MAN55LE

where did you beef up the tranny with Kevlar internals? how much? By who? How's it holding up? Does it feel different? Thanks.. Hope you get everything squared away with the motor.

WHTE55

Was done at a shop in NJ, its been holding up great! (fingers crossed)
Honestly every once in a while the shift isn't exactly smooth, nothing serious but just not butter smooth - does not happen very often

Thanks, i'm working on getting the car back on the road

AgSilver

I suspect it could be European Exchange in NJ. This operation really knows what they're doing.

W219CLS55

This sucks, I just got my pulley and tune and now don't want to install it. The day I got it and flashed my car with it I started it and the moment I started the car 10 seconds after idle it started knocking. I was like holy **** I haven't even moved the car and it started knocking!! So, I decided to return it to stock to see if hopefully the knocking would go away. Well it did!! so I decided to reflash again with the performance tune and started the car. Well it didn't do it so I took it for a 5 mile ride/cruise. Well on my way home I rolled down the windows and got to first stop light and it sounded perfect and felt good(smooth). As I get to the second light I hear knock knock knock I was like holy **** it still feels very smoth but it's knocking like an mf'er. Well I get home and pull into the driveway, shut the car off and open the hood and start scanning around and come to find that the AC compressor clutch gave out. See the c clip in picture..


maybe it's a sign not to remove the pulley and not do the tune.

WHTE55

Which pulley did you just get? And do you already have a bigger crank pulley? Just be careful, don't want to end up in my situation.

edan82

Fuel filter is siting with the fuel pump or am I wrong?

I'm asking as I installed a new fuel pump about 5k kilometers and wonder if the fuel filter is part of it.

What can do in order to prevent the #8 cylinder problem?

W219CLS55

I ordered just the supercharger pulley and tune and currently only have the Heat Exchanger and Johnson pump with K&N's. Do you guys recommend I do bigger injectors and change fuel filter just to be on the safe side? I'm at 70k on the clock

WHTE55

I would deff. put a smaller s/c pulley on it! I personally would do injectors but I will let other more experienced members chime in.

As far as my issue goes, I have decided to pull the motor out of the car my self and look at how much damage is done.
I have almost everything drained and unhooked from the engine and the torque converter un-bloted, hopefully the motor comes out tomorrow!

kustom2k1

Did you upgrade from stock to your current setup in a single application or did you upgrade part by part? Running meth? Larger intercooler (TTM)?

I've got the 185 pulley sitting in my garage taunting me to put it on.

WHTE55

ALL of the mods were done about a year ago and the car ran 100% for the whole time.

UNTIL I decided to go with a smaller S/C pulley and get a tune and after that the engine just started to have issues for a couple days and then the cylinder 8 issue within 30 days of going with the smaller S/C pulley.

I think the 185 lower and smaller S/C PULLEY might be too much boost.

Is anyone running this setup?

Yes I had a bigger intercooler but no meth.

kustom2k1

Too much boost, hmmm. There are a few cars running around with comparable setups. What were the ambient temps when you did your first pulls after SC pulley install and tune? What leads to piston failure, lack of fuel, aggressive timing or both can cause detonation.

Do you log and have an AFR gauge you can monitor? Logging and having the equipment to monitor AFRs are a must when modding a car to your level along with meth for the added security in the form of octane. Having the ability to share log files with your tuner needs to be a priority.

Imagine going to the DR. for a stress test without any monitoring! Best he could do is guess your ok, or stand over your dead body.