run some aTF to clean the ip, car sluggish then not reving under load...Long story - Page 7 - PeachParts Mercedes-Benz Forum

whunter · #91 11-07-2010, 08:09 PM

Quote:

Originally Posted by Olivier

Updates:
Lift pump had been partially rebuild, I am missing the spring and one non return valve.
The sov is leaking then the car run poorly.
Getting the rest of the L/P tomorrow and a spare SOV in the next few days.
It seems its the banjo tho as the spring on the L/P is strong and both valves were working fine.
To be continued.
here is a (bad) drawing of my understandng of the fuel path.
Comments welcomes

Fuel flow graphic.

barry123400 · #92 11-07-2010, 08:36 PM

Quote:

Originally Posted by Olivier

Hi Barry,
I clamped the return line ysterday but nothing had happen. I guess that its ok untill a certain pressure then same story happen when the fuel pressure goes up and cannot "flow away" as that pipe is blocked.
I don't know how's the car now, could fired it up.
Tomorrow will tell, but indeed the inconstitency of shutting or not while sucking on it show a bother there...
Its a sealed unit, trully hard to take apart, I thought of it but if I break it open the seal might be lose

Olivier

Clamping off the return line with absolutly no change might mean there is not even enough fuel pressure to open the return valve. Have a look to see if the return valve is dischaging any fuel at idle as well.

If none you have to get a handle on what fuel presssure you actually have. Also have a look for too much air in the fuel.

Olivier · #93 11-08-2010, 04:48 AM

Hi Barry,
There is fuel returning at iddle.
The return valve is really weak. I open right away with a little blow.
Waiting on a spare one. I'll see hoiw this one act.
Cheers.

Olivier · #94 11-08-2010, 04:51 AM

Quote:

Originally Posted by whunter

Fuel flow graphic.

Thanks Wunter,
seems that this is the same as what I saw. Funny system,aye.
Any idea why 83 is not plugged in where 95 is, this will be a more direct way. Odd..
Cheers.
Olivier

Olivier · #95 11-08-2010, 08:42 AM

DIY of the day, no laughing allowed. Also this might be the right non-returning bolt as it look like mine and this is the bosh number

whunter · #96 11-08-2010, 10:08 AM

Quote:

Originally Posted by Olivier

DIY of the day, no laughing allowed. Also this might be the right non-returning bolt as it look like mine and this is the bosh number

The black plastic box/first picture, of the glued/damaged/junk unit is the shutoff valve, known for failing = sucking air...

Fastlane: Shut Off Valve
http://catalog.peachparts.com/item.wws?sku=W0133-1717668

Olivier · #97 11-08-2010, 11:04 AM

Hi Wunter, I know its the SOV. I broke a nipple few days ago and my first fix was not well and it was still leaking.
I am waiting on another Unit but as I need the cat I decided to do this whie waiting. I killed the battery again tho as there was too much air in the lines for the poor L/P to suck it all... Car is also in a wee hill, nose up, its not helping...
Oh well...
I was just posting this as it might help someone who need to do a fix if a nipple broke like I did.
I cannot open your link? I'll try later.
What do you think of the bolt number?
All the best.
Olivier
I just realised that the bolt is not showing properly with the bosh numbers, here is a more detailed picture.

Alastair · #98 11-08-2010, 12:13 PM

Hi Olivier....

Just to let you know, I sent message to you on vegoildiesel, I have the SOV off for you, but couldnt get at the banjo-bolt, need to remove IM by the look of it--I was working by torch-light....

Looks like The SOV could also cause your fault as they apparently can fail and allow air in (Whunter...).

The one I have here from my 606 looks to be in good order, it was still filled with fuel when I disconnected it...

Olivier · #99 11-08-2010, 12:20 PM

Hi Alastair, thank you very much.
Working with a light is not easy...
Yes the IM need to be removed to access the bolt, its a wee pain...
Again a big thank you.
All the best.
Olivier

compress ignite · #**100** 11-11-2010, 02:25 AM

EDIT: Spring found

THEY HAVE A PLASTIC INSERT and a ridiculously small SPRING!!!

Garbage!!!

Own a Mercedes OM60X.XXX engine? You have the same trash on the side of your I.P. !

Oliver Dis-Assembled his and this is what he found:

Olivier · #**101** 11-11-2010, 04:40 AM

I has a teeny spring,Just found it...
I didn't know if there was one or not as I didn't see any when the ball bearing burst out.
It was tough to see as all fell apart quickly. Its teeny and all curled up as I pushed it hard to get the ball out. It has no force what so ever, reallly weak.
Very crap design...

funola · #**102** 11-11-2010, 07:34 AM

Wow! I wonder if low IP case fuel pressure led to the demise of your engine?

Olivier · #**103** 11-11-2010, 07:49 AM

My engine? Its all related with the other topic ATF thingy. I have reconditionned the L/P, waiting on a SOV and now need the bolt. All should be ok after that. Fingers crossed

compress ignite · #**104** 11-11-2010, 07:51 PM

Online cross reference charts:

whunter · #**105** 11-11-2010, 11:42 PM

Quote:

Originally Posted by compress ignite

Online cross reference charts:

Please add a link to this company.