W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Looped fuel rail install help

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Old Oct 25, 2013 | 08:21 PM
  #1  
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03' E55
Looped fuel rail install help

For those who have done this, do you have to remove the blower to get the braided line under there or am I just missing something?
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Old Oct 25, 2013 | 08:31 PM
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Originally Posted by 03e55
For those who have done this, do you have to remove the blower to get the braided line under there or am I just missing something?
What's a looped fuel rail?
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Old Oct 25, 2013 | 08:31 PM
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Originally Posted by RedBullJnky
What's a looped fuel rail?
LoL
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Old Oct 25, 2013 | 08:49 PM
  #4  
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For the people who have done this already, Can you leave one side unhooked and slide it across and just tighten it down?
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Old Oct 26, 2013 | 05:41 AM
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Originally Posted by 03e55
For those who have done this, do you have to remove the blower to get the braided line under there or am I just missing something?
You do not need to remove the S/C. Put the line in place before installing the rail.
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Old Oct 26, 2013 | 08:20 AM
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I will help you install that looped fuel rail. This is how you do it.



I hate when people read something that is a dumb trend and think they need it and then further more that other businesses take advantage of these people and make it to sell to them knowing damn well they don't need it.

How did E55s make well over 500whp several years ago with no looped fuel rail? How did E55s run 10s several years ago with no looped fuel rail? Was it magic? No it was because it is not needed and is a complete joke started by TTM because he is con artist and convinced people they needed it. Unfortunately now one or two others are making them to make a buck because they know people out there will buy them that don't know any better.
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Old Oct 26, 2013 | 08:25 AM
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Originally Posted by urbamworm
I will help you install that looped fuel rail. This is how you do it.



I hate when people read something that is a dumb trend and think they need it and then further more that other businesses take advantage of these people and make it to sell to them knowing damn well they don't need it.

How did E55s make well over 500whp several years ago with no looped fuel rail? How did E55s run 10s several years ago with no looped fuel rail? Was it magic? No it was because it is not needed and is a complete joke started by TTM because he is con artist and convinced people they needed it. Unfortunately now one or two others are making them to make a buck because they know people out there will buy them that don't know any better.
That's incredible...I was coming on here to post EXACTLY what you said! lmao....I was gonn a write...THROW IT IN THE GARBAGE!!! Too freakin funny!
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Old Oct 26, 2013 | 09:07 AM
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Originally Posted by urbamworm
How did E55s make well over 500whp several years ago with no looped fuel rail? How did E55s run 10s several years ago with no looped fuel rail? Was it magic? No it was because it is not needed.....
MY THEORY:

The looped fuel rail actually DOES work, but not for the reasons most people think...

Take a look at all the threads where people post up about clogged fuel filters and melted plugs on the fuel pump wiring. As these cars get older, the fuel pump/filter assemblies get loaded up with crap and start restricting fuel flow. Either through ignorance or stubbornness, owners aren't replacing these parts at 60,000 miles (as required by MBZ) so the fuel delivery to the engine gets weaker and weaker over time.....

Guys install larger injectors, increase boost and HP, dramatically increasing the need for fuel....but in reality the volume of fuel is slowly being reduced by old, dirty fuel filters. I believe the looped fuel rail might have just been a "band-aid" for cars who's fuel systems were losing efficiency due to age / lack of maintenance. It helped to normalize pressure a bit better across all 8 cylinders than the factory setup.

I don't have any hard data to prove any of this, but it's just a theory I've been playing with in my head.


-G

Last edited by GregMB; Oct 26, 2013 at 09:19 AM.
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Old Oct 26, 2013 | 09:14 AM
  #9  
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Originally Posted by GregMB
MY THEORY:

The looped fuel rail actually DOES work, but not for the reasons most people think...

Take a look at all the threads where people post up about clogged fuel filters and melted plugs on the fuel pump wiring. As these cars get older, the fuel pump/filter assemblies get loaded up with crap and start restricting fuel flow. Either through ignorance or stubbornness, owners aren't replacing these parts at 60,000 miles (as required by MBZ) so the fuel delivery to the engine gets weaker and weaker over time.....

Guys increase boost and HP, increasing the need for fuel....but in reality the volume of fuel is slowly being reduced by old, dirty fuel filters. I believe the looped fuel rail might have just been a "band-aid" for cars who's fuel systems were losing efficiency due to age / lack of maintenance. It helped to normalize pressure a bit better across all 8 cylinders than the factory setup.

I don't have any hard data to prove any of this, but it's just a theory I've been playing with in my head.


-G

I'm at 58k, didn't even know I had to change the fuel filters at 60k. I'll order me some!
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Old Oct 26, 2013 | 09:17 AM
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03' E55
Okay thanks for the clarification. But being that it's already apart now and ready to go back together, I believe I'l just see this through. snake oil or not.

Direct me to the thread where the internet engineers proclaimed this was less than useless, as I have clearly missed it?
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Old Oct 26, 2013 | 09:19 AM
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Originally Posted by E55AMGGG04
I'm at 58k, didn't even know I had to change the fuel filters at 60k. I'll order me some!

You can not change just the filters, you will need both senders at a cost of over 1200$
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Old Oct 26, 2013 | 09:25 AM
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Originally Posted by E55AMGGG04
I'm at 58k, didn't even know I had to change the fuel filters at 60k. I'll order me some!
When you see the costs of the parts you'll understand why people ignore it...

Originally Posted by 03e55
Okay thanks for the clarification. But being that it's already apart now and ready to go back together, I believe I'l just see this through. snake oil or not.

Direct me to the thread where the internet engineers proclaimed this was less than useless, as I have clearly missed it?
I don't think you've got anything to lose by installing the looped rail (unless it was an FTP product) it will add some extra design margin, but as I mentioned there is a real concern about the fuel pump/filter being able to provide adequate flow as these cars approach 10-years old....and in some cases are still running the original fuel filters!

-G
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Old Oct 26, 2013 | 10:30 AM
  #13  
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Originally Posted by Joncl
You can not change just the filters, you will need both senders at a cost of over 1200$
Wrong, like so many others, the misinformation continues.
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Old Oct 26, 2013 | 10:34 AM
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Originally Posted by E55Greasemonkey
Wrong, like so many others, the misinformation continues.
What are the part numbers for the filters?
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Old Oct 26, 2013 | 10:36 AM
  #15  
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Originally Posted by E55Greasemonkey
Wrong, like so many others, the misinformation continues.
Please post the needed part numbers and create a DIY thread.
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Old Oct 26, 2013 | 11:00 AM
  #16  
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Originally Posted by Joncl
You can not change just the filters, you will need both senders at a cost of over 1200$
Ignoring it is! I have the car 7 years now. Bought with 19k and have 58k lol
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Old Oct 26, 2013 | 12:43 PM
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lol
If there are part numbers for just the filters would be great
Greasemonkey don't hold out if you know something
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Old Oct 26, 2013 | 02:15 PM
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looped fuel rail

Originally Posted by 03e55
Okay thanks for the clarification. But being that it's already apart now and ready to go back together, I believe I'l just see this through. snake oil or not.

Direct me to the thread where the internet engineers proclaimed this was less than useless, as I have clearly missed it?

If this is a useless requirement Mercedes AMG would not of used it on the SLR
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Old Oct 26, 2013 | 02:41 PM
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Originally Posted by BRH AMG
If this is a useless requirement Mercedes AMG would not of used it on the SLR
Yeah, please explain that: Why would MB decide to use a looped rail on the SLR's if its that obsolete?

Originally Posted by jcjmw
Please post the needed part numbers and create a DIY thread.
Do tell please

Last edited by Tech-Tune; Oct 26, 2013 at 02:47 PM.
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Old Oct 26, 2013 | 02:42 PM
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Originally Posted by Joncl
lol
If there are part numbers for just the filters would be great
Greasemonkey don't hold out if you know something
I could be wrong,, but i think fuel filter comes with a sender unit, not separately....!??!

ZAYED,,
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Old Oct 26, 2013 | 02:43 PM
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Originally Posted by GregMB
MY THEORY:

The looped fuel rail actually DOES work, but not for the reasons most people think...

Take a look at all the threads where people post up about clogged fuel filters and melted plugs on the fuel pump wiring. As these cars get older, the fuel pump/filter assemblies get loaded up with crap and start restricting fuel flow. Either through ignorance or stubbornness, owners aren't replacing these parts at 60,000 miles (as required by MBZ) so the fuel delivery to the engine gets weaker and weaker over time.....

Guys install larger injectors, increase boost and HP, dramatically increasing the need for fuel....but in reality the volume of fuel is slowly being reduced by old, dirty fuel filters. I believe the looped fuel rail might have just been a "band-aid" for cars who's fuel systems were losing efficiency due to age / lack of maintenance. It helped to normalize pressure a bit better across all 8 cylinders than the factory setup.

I don't have any hard data to prove any of this, but it's just a theory I've been playing with in my head.


-G

Very good info., fully agreed with every WORD.....

ZAYED,,
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Old Oct 26, 2013 | 02:45 PM
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Originally Posted by BRH AMG
If this is a useless requirement Mercedes AMG would not of used it on the SLR
Excellent point,

Confirmation answer would be great....-
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Old Oct 26, 2013 | 03:08 PM
  #23  
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A looped rail is not a waste...As others have pointed out most performance cars have them and MB designed the SLR with a looped rail. As for the cost of replacing the fuel filters and assembly it is less than $500, so not that bad.

Hopefully greasemonkey can help us with how to replace just the filters....Otherwise it is just a ~$500 weekend job.
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Old Oct 26, 2013 | 03:24 PM
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Don't mean to take this thread off track...but if you're installing a looped rail, I'd be more concerned about your fuel filter if your car has more than 50k miles. That is the service interval from MB, and I've taken them apart at this mileage and they get very dirty. The FILTER is integrated along with the pressure regulator (another reason to replace the assembly)into the LH (drivers side) fuel sender. That sender unit can be replaced without replacing the pump(s) (RH side). However, you will have to remove the passenger side sender cover to disconnect the hoses and wires inside the tank that run to the filter on the driver's side. For parts, you will need---

Drivers side fuel sender (filter) assembly
2 sender seals
1 small hose clamp (for fuel line to engine on top of sender)

The filter assembly is ONLY available from MB, there is no aftermarket option. The pumps are available aftermarket if you dare.

That's it...I think some of you are confused with the fuel pump strainers (socks) attached to the pumps themselves. These are designed only to capture large particles, and there is no need to change these ever, unless your "ex" dumps sand into your tank, or other major fuel contamination. Those "socks" are designed to last the life of the pumps.

If the electrical connector to the pump (passenger side,on the lid) is burnt/melted, usually due to a clogged filter- You will have to replace the pumps as well.
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Old Oct 26, 2013 | 05:31 PM
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Originally Posted by E55Greasemonkey
Don't mean to take this thread off track...but if you're installing a looped rail, I'd be more concerned about your fuel filter if your car has more than 50k miles. That is the service interval from MB, and I've taken them apart at this mileage and they get very dirty. The FILTER is integrated along with the pressure regulator (another reason to replace the assembly)into the LH (drivers side) fuel sender. That sender unit can be replaced without replacing the pump(s) (RH side). However, you will have to remove the passenger side sender cover to disconnect the hoses and wires inside the tank that run to the filter on the driver's side. For parts, you will need---

Drivers side fuel sender (filter) assembly
2 sender seals
1 small hose clamp (for fuel line to engine on top of sender)

The filter assembly is ONLY available from MB, there is no aftermarket option. The pumps are available aftermarket if you dare.

That's it...I think some of you are confused with the fuel pump strainers (socks) attached to the pumps themselves. These are designed only to capture large particles, and there is no need to change these ever, unless your "ex" dumps sand into your tank, or other major fuel contamination. Those "socks" are designed to last the life of the pumps.

If the electrical connector to the pump (passenger side,on the lid) is burnt/melted, usually due to a clogged filter- You will have to replace the pumps as well.
Please post part numbers and create a diy thread.
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