R129 : M104 cylinder head oil leak/gasket question

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Pcn1

Active Member
Joined
Dec 16, 2008
Messages
158
Location
Maidenhead, Berkshire
Car
SL320
I'm chasing down a small oil leak around the front of the cylinder head (not the timing cover leak, that's being dealt with separately) and I found this online article:



At the end of the article the author talks about this VVT cam cover being suspect for an addition leak. I removed mine and there isn't any paper gasket material left, just some dark residue on the surfaces which I'm assuming must be a liquid sealant used in the factory ?
Therefore its ok to use oil resistant RTV sealant on this cover to effect a repair ?

Any advice welcome.

ThanksMerc 1.jpgMerc 3.jpg
 
RTV is fine, just dont use too much. Be sure that none can get inside the timing cover.
 
At the end of the article the author talks about this VVT cam cover being suspect for an addition leak. I removed mine and there isn't any paper gasket material left, just some dark residue on the surfaces which I'm assuming must be a liquid sealant used in the factory ?
Therefore its ok to use oil resistant RTV sealant on this cover to effect a repair ?

I may be mistaken but, on my M104.980 engine (earlier than yours), the gasket under the cam cover provides the seal, without any gunge. No problems with mine.

But I do have a leak from the timing case gasket. I may replace it myself as I have a new MB gasket. That needs some special sealant at the ends of the gasket, apparently.

I might get our local specialist to do it!

RayH
 

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