i have a b16eg sirII engine and everything is well except that the spark plug nearest the distributor has oil. i have alsready changes the spark plug oil seals. there is no sign of oil trickling down from the plug hole.

also, the oil is only found at the spark plug washer ring. sometimes there is some on the thread but just very little and looks like it s trickeld down from the washer. what could be the cause? i am not burning oil.