sounds like the valve cover gasket.
Green Beret Special Ops
sounds like the valve cover gasket.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Major Contributor
porcelain and nut were not wet...
...just what was inside the engine.Originally Posted by 632 Regal
Bill B.
95 525i
Super Moderator
I see it frequently. If you look at the
cross section of the threads on a spark plug and the threads in the hole when they are screwed in, you'll notice that there is a gap on every thread .
When they are torqued this slight clearance or gap on the threads makes a spiral channel that oil in the combstion chamber can wick its way up.
A very small amount of oil is present in the cylinder and combustion chamber when the engine is running, you can have just enough oil coming by the rings and the intake valve guides that it won't show up on the electrode because it will burn off fairly completely but it will wick up the threads on the spark plugs all the way up to the sealing washer on the plugs.
As long as the oil consumption it still relatively normal i wouldn't worry about it at all.
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