95 E300 fuel lines...
I've done many a hard job on this car, I'm assuming this is a simple enough job to do? I'm also assuming the heat exchanger and fuel lines/O-rings are dealer only items which is not a problem, I just want to ensure I order the right parts before diving in - any guidance from those of you that have done this job before? My tech wants $750 parts and labor for all of this.
Thanks - Toby
http://www.peachparts.com/shopforum/...d.php?t=177588
The fuel thermo (heat exchanger?) is a low fail part. I'd spray it and everything around it clean with a full can of brake cleaner first, then run it 15 minutes and feel by hand for where the leak is comming from as a first step.
Chances are if it dies after being started that its the pre-filter, its oring, or the oring seal at the line from the thermo to the prefilter as those are all on the suction side of the lift pump. Is possible it is the oring behind the shutoff valve too.
When it runs, if you shut it down does it shut off immediately or does it turn off 1/4 or 1/2 sec after the key is turned?
TM - set me straight on something. I always thought the IM was the big aluminum looking thing across the top of the motor. My mech was saying how thats not the hard thing to remove and the the IM is what that aluminum piece attaches to and thats where the labor/cost comes into play with this job. I've done a ton of work on this beast myself, I've just never removed that IM / aluminum piece and done any work in there.
I'd like to try a repair with all of the o-rings , gaskets, and new lines and leave that heat exchanger in and see if those items will give me a leak free car for awhile.
Yours has a crossover pipe, and an IM. #29 & 5 respectively. http://www.detali.ru/cat/oem_mb2.asp...SGR=030&SGN=02
Both need to come off and both are easy to remove. Shouldn't take much more than an hour to remvoe the first time. 20 minutes the second time. You'll need a new IM gasket. Torque is 20 NM. Removing both will allow you easy access to all the fuel lines.
The up stream end of the fuel thermo has a rubber fuel line clamped to it. It's possible thats where your leak is comming from too. Replacing that portion of line would be easy with the IM and crossover off.
If you remove both, you'll want to clean both up. they'll be full of oily crud. Hot dipping in a parts cleaning tank or steam cleaning works best. A machine shop can do the former for you.
Sounds like your mechanic is talking ablut removal of the cyl head; that has nothing to do with your fuel leak. The IM provides air to the valves in the head. You might want to find another mech that you communicate better with???
I believe I have an engine diagram from performance parts - I'll start studying that thing plus the one above - thanks TM, keep checking back with me if you don't mind.
Toby
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Thanks - Toby
See section 07, subsection 120. The lines from the dealer come with orings attached. The prefilter oring is separate.
Thanks - Toby
Last edited by OJ's DNA; Dec 2, 2009 at 04:13 PM.
Thanks - Toby
Crank 30secs at a time to prime. Wait 30 secs, crank 30 again. After 3 cycles give it 15 minnutes to cool the starter. Start again.
If it seems like it wants to catch, keep cranking....crank 2-3 secs after you think it has caught. Wont hurt the starter.
Crank 30secs at a time to prime. Wait 30 secs, crank 30 again. After 3 cycles give it 15 minnutes to cool the starter. Start again.
If it seems like it wants to catch, keep cranking....crank 2-3 secs after you think it has caught. Wont hurt the starter.
One last thing - how do I know what position the dial should be at thats on top of the fuel filter? I know it goes up and down and allows fuel to come through the hole inside the bolt but how do I know where to have that thing?
Last edited by OJ's DNA; Dec 6, 2009 at 03:09 PM.
Its in the OM if it interests you further.
Check the suction side (1-3) of the fuel path for leaks. http://bp3.blogger.com/_p71v9ofBM6w/...h/fuelflow.JPG
http://www.youtube.com/watch?v=pJ9uqm2nsgE
http://www.youtube.com/watch?v=js4AsFm9plk
http://www.youtube.com/watch?v=ni09-_CHrfs
http://www.youtube.com/watch?v=BQZ5_-RG-DE
Last edited by 240D 3.0T; Dec 8, 2009 at 01:09 PM.


