Oil on spark plug

[Adder75]

I took my valve cover off to fix a timing chain rattle on my 93 240. I didn't get the spark plug gasket on right so one of my plug holes got oil in it. I replaced the cover gaskets and cleaned the wire, got all new plugs, and cleaned the hole as well as I could. No leak now, but I check the wire and plug once in awhile and it's always a bit moist in there. I'm think there is still some oil in on the piston? Engine is running strong and I want to keep it that way, so do I need to worry about the oil in there?

[NISTECH]

where is the oil? on the wire side of the plug or on the electrode side of the plug? And you say moisture? is it oil or water?

[NateDogg]

No worries, just a bit of residue. Had the same thing happen to me. It'll be fine!