Oil around spark plug
Posted: Fri Sep 07, 2018 8:09 am
On my engine I have noticed oil around number 1 plug that seems to come up through the plug threads. I don't want to tighten the plug too much and risk stripping the threads. Is this a common problem that happens when the threads get worn and oil weeps through? I can confirm that the oil is not coming from the cam cover gasket and I have even fitted a new spark plug. As an aside, I always apply a smear of Copperslip to the plug threads.