Oil on spark plug threads

[matty]

Hey guys- has anyone ever seen this? Swapped my plugs yesterday, mostly wanted to take a look at the old ones to see where I'm at on the carburation issue.

Anyway, the plugs on both front cylinders had oil on the threads- the electrodes were fine, but there was a lot of oil in the threads of the plug, the right front plug even had a little (maybe 1/2 teaspoon) oil sitting in the spark plug well. Again, the electrodes looked good, a dark chocolate brown, not wet or black...

Should I be concerned? The engine runns pretty well (except for "flat" spot at 5K RPM) and does not smoke-

I cleaned the oil and installed new plugs for now....

Anyone have any thoughts on this?

[silveradocowboy]

Were they loose when you removed them?

[Greg Cothern]

Its typical.  The crank vents out the top thus some of it drains to the plug wells.

[silveradocowboy]

Ahhh, thank you ole wise one 

[matty]

........."Whew!"......