oil out spark plug hole

[Simplstupd at aol.com]

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Should I be worried?:

There is motor oil coming out the spark plug hole of #5 cylinder.  The oil
sits on the ledge of the head, and then runs down the head and even the
block.  Not enough to leave a drip on the ground but it leaves a fair amout
of oil on the engine.

I have meticulously degreased the engine and the only place oil comes out is
#5 spark plug hole.  It is not coming out the VC gasket and dripping down
onto that area.

I have changed the plugs and it still does it.

At the end of the day I'm not *real* worried, just curious. ;-)
Paul
'82 Coupe