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Old 03-06-2023, 07:03 PM
jac jac is offline
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Join Date: Dec 2005
Location: Texas
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Quote:
Originally Posted by c-bass View Post
The valve cover gasket is 2 pieces. The inner gasket goes around the spark plugs to keep the oil out of there.

...

half of my plugs were filled with oil and I was also getting misfires

In my case the rubber tube on the ignition coils is coming out completely clean. So I do not think the oil is coming from the top of the head. That is what I was trying to clarify when I said that the oil is found on the electrode side of the spark plug. The "electrode side" is the side of the spark plug exposed to the piston/injector in the attached diagram.

I also replaced the head cover gasket (all 3 pieces) about 2 years ago with original BMW parts... I guess I could have screwed that up (not seating the gaskets properly), but that would not explain why the coil tubes come out clean.
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2001 BMW X5 3.0i, Automatic, Gasoline

Last edited by jac; 03-06-2023 at 09:23 PM.
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