Is there a gasket replacement for under the oil filler cap. I noticed a bit of oil residue draining down the valve cover. I did the dancing cap test and no dancing Can I rule out blow by?

Which car?

Yes and Yes (sort of)...

What do you do with the cap when you remove it (to add oil etc..)?

Parts are at the top of the page "Buy Parts".

Go to Fastlane put in the make/year/engine, then type "oil cap" in the keyword search. This will bring you to the gaskets.

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AJ

1985 300D (SOLD)

Yeah, probably the same part for either car.

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83 SD

84 CD

....

set it aside, can't recall if I turn it over or just lay it flat when I set it down

Turning it upside down allows the oil to run into the cap. Then when you put it back on.... It runs down onto the valve cover.

I went so far as to replace the cap just to find out I was not supposed to flip it over. I never had this problem on other cars.

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AJ

1985 300D (SOLD)

As said above, the gasket for the cap is in the buy parts, about $2.50.

when I remove the cap, I set it on a rag right side up. then wipe off the bottom real well.
then before replacing it, I wipe off the valve cover, and screw it down.

I replaced mine about 4yrs ago, and I now get some weeping if I put it on one way,

I do a 180, and no leak. they do get cooked and dry out in time. so, the next order I`ll order a couple along with the rubber elbo next to it.

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

reviving this old thread.

Just put on the new gasket and essentially Glued the "blow by chimney". Now you can eat off my valve cover.

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77' 300D, "Cartman" SOLD @ 150K (didn't know what I had)
83' 300SD, "The Superdon" 325k+ @ 28mpg
95 E320 wagon, "Millennium Falcon" 231k+ @ 24 Mpg
95 E300D, "Sherley" 308k @ 33.69 Mpg, currently anticipating a head
99 Suzuki Intruder "Trudy" @ 45 mpg

My mechanic recommended this to me as well, the oil cap should not be inverted if you're picky like me. The oil seeps into the backside of the gasket, and leaks on the valve cover.

Clean both sides, place the cap right side up, clean oil filler hole and you're set.

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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg

I put a little bit of grease on my oil cap gasket to improve the seal, seems to work fine.