Smell from engine bay, rocker cover or manifold?

D

donaldosaurus

Member
 Dumfries and Galloway
Hi

I tried searches but failed. As soon as I have been for a drive the smell is notable but I'm not sure if it is exhaust gasses or small oil drop from rocker cover burning. Nothing noticeable but then again not easy to see or access.

Any pointers gratefully received.
 
Check the exhaust bolts at the joint these corrode and cause the joint seal to leak gases ,search on here lots of info and fixes another common zed problem
 
Commonly the cam cover gasket fails and drips oil onto the exhaust manifold. When the engine is cold run your fingers along/around the gasket line. The oil usually gathers on the manifold side especially at the rear corner near the bulkhead. Also/alternatively the oil filter housing gasket can fail. I replaced both myself recently on my M54 and also the full CCV system. Cam cover gasket is a straight forward job but the oil filter housing gasket is a little more complicated as the housing itself is also part of the alternator mounting bracket ! You will have to remove the alternator as part of this job which isn't difficult but makes the job a bit more time consuming. :thumbsup:
 
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