On most 240D (W123) engines, there is an oil-air separator which has a nipple at the end which plugs into a drain tube. On that nipple, there is an "O" ring.

Does anyone know the part # for this O-ring? I looked on the forums and the 'tried-and-true' fiche from S.Atlanta MB and no dice.

I will post some pics tonight for clarity's sake.

Thanks in advance.

This might be one of those situations where the ' o ring pack ' at the local hardware store or Harbor Freight comes to the rescue... there are discussions in the archives for what material one would want to look for them being made from.

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

^^ that will be plan "B" ...

There is a tight clearance with the nipple with O-ring and the drain tube so shooting for the "right" O-ring as plan A. The original crumbled when removed.

Not using the OEM - original oil - air separator. Rather, went with the MANN-ProVent 200 unit and lucked out tremendously in removing the end piece, drilling out the hole a little, and fitting that nipple over the MANN's nipple unit and securing with epoxy. So, thinking would prefer to say with an OEM "O" ring solution.

Do you have a line drawing which shows where exactly this is ?
I have a 240 but am not visualizing the area..

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Pictures coming tonight. Once you see the snappy, you'll know exactly what I am talking about.

Found this on the net. Red arrow points to the "O" ring location.

Attached Thumbnails

 

Where exactly in the engine compartment is it ?

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

It sits on the passenger side of the engine, in front of the air filter housing.

Found this general picture of its location in the engine bay.

Attached Thumbnails

 

Not that it would help me know the part number .. but I do not think my car has that object...

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Some 240Ds have them, others don't.

I believe the 82 model 240D was the first one to get it and the 83 also.
Bolts to the intake manifold.

Greg your 80 240D as mine only has the plastic tube between the VC and the intake manifold.
A simple always works piece of enginereing.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

I'll give my usual advise and suggest a trip to your local Parker store. They'll have O-rings in various IDs, ODs, and materials. Mic the ID of the hole it goes into and take the mobile part with you and I'll wager they'll come up with a good fit and probably in silicone if you want it that way (I would). I use an aftermarket oil separator that I mounted on Mutt's firewall but it looks like the same idea.

Dan

Yea, no unobtainium orings to try to find... lol

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

I would do that ^^, but I do not think they have metric O-rings. We have a Parker store which is sort of near my home and a hydraulic shop which is a short jaunt. Prefer the exact O-ring / Part # as plan A. If it turns into a PITA, going with a 'close-enough' solution.