Need help routing belt on OM602 and other nuances - PeachParts Mercedes-Benz Forum

Darkmonster620 · #1 07-01-2009, 10:16 AM

Hi,

I bougth a used Rexton 290 with a MB OM602 5 cylinder engine, had to replace the belt because it broke and now I can't seem to get tension on it; what am I doing wrong?
Can someone send me the diagram? Previous owner had accident and the cover that goes on the top of the radiator is missing and no owners manual.
The engine also has a small oil leak coming from somwhere where the intake manifold connects with the head and from the blowoff valve from the turbo, are these leaks difficult to repair? Never worked on a MB engine before, appart from doing oil changes.
He was using 25W50 Texaco oil; in my previous diesel, I used 15W40 from Repsol[non synthetic], which one should I use on this engine?
If you want to can PM or send me an email to darkmonster620@gmail.com.
Many thanks,
Carlos

Oldwolf · #2 07-01-2009, 10:46 AM

This might help. Look on page 21 of the document.

http://mb.auto.pl/wis/w124/CD01/Maintenance/MY81/1351.pdf

Darkmonster620 · #3 07-04-2009, 08:01 PM

Thanks man...

But my engine has an idler pulley above the tension pulley...

And I'm running that same diagram

,...that's why I'm lost, I bought the tensioner[the spring and damper and pulley] and no tension ...

Darkmonster620 · #4 07-06-2009, 08:00 PM

bump

Oldwolf · #5 07-06-2009, 08:06 PM

Can you show us a diagram or picture of what you have?

Do you have all 6 items on page 21 on your car?

Whats missing?

pawoSD · #6 07-06-2009, 08:09 PM

Either of those oils will probably work.....I imagine it is quite warm down there.

The 15w40 may be better, whichever is a good diesel rated oil.

Darkmonster620 · #7 07-06-2009, 08:24 PM

Quote:

Originally Posted by Oldwolf

Can you show us a diagram or picture of what you have?

Do you have all 6 items on page 21 on your car?

Whats missing?

i've got and aditional idler pulley besides the p/s pump above the water pump. sorry no cam[digital]...

dealer wanted $90.00 for belt, got a Gates same lenght for $20.00...

everything else i got from rexton dealer, all mb part #s

Darkmonster620 · #8 07-06-2009, 08:27 PM

Quote:

Originally Posted by pawoSD

Either of those oils will probably work.....I imagine it is quite warm down there.

The 15w40 may be better, whichever is a good diesel rated oil.

thanks, i'll get the repsol, the texaco is not widely available and repsol gives me discount for being a one man shop...
that's why i bought the rexton, to haul tools and other stuff...

Darkmonster620 · #9 07-06-2009, 10:28 PM

bump

jt20 · #10 07-07-2009, 12:49 AM

tell us exactly how many contacts / pulleys there are and how many are not splined

Darkmonster620 · #11 07-07-2009, 08:29 PM

Quote:

Originally Posted by jt20

tell us exactly how many contacts / pulleys there are and how many are not splined

Splined: A/C, ALT, P/S, WP, CS, Idler[ontop sligthly to the right of WP]
Not Splined: Tensioner pulley
Total 7

jt20 · #12 07-07-2009, 09:17 PM

maybe this? Why is the idler splined?

Darkmonster620 · #13 07-07-2009, 10:07 PM

Quote:

Originally Posted by jt20

maybe this? Why is the idler splined?

Sorry my bad, idler not splined, belt oges over...
I'm so frustated, i'm an auto technician, had an 89 300TD Turbodiesel station wagon and never had issues. got into a bad bad $$$ situation had to sell everything, now only have vehicles listed[suzuki belong to wife], none of my vehicles gives me this kind of trouble.

Coudl it be the belt? it's not oem, but ...

jt20 · #14 07-07-2009, 10:15 PM

That drawing is based off the 603. It was the only one I could find with the idler on top and 7 contacts...

check your messages for a link to an FSM.

jt20 · #15 07-07-2009, 10:21 PM

you should also compare the two belts together.

When you bought the belt which vehicle did you provide info for? The other vehicle may require a different size due to accessory pulleys with different diameters.