mikeislord
Senior Member
Yeah, i just replaced my sparkies with some nice NGK Iridiums and I find that one of my spark plugs has some oil on it, so Im pissed. I know that this can be either a leaky headgasket, ring, seal, etc.. but what is the easiest way to determine the exact cause of the leak? I have never done internal engine work, only bolt-ons and ghetto-fabs so this would be a new adventure for me. I was thinking of just prettying the car up and selling it asap but I figured I would ask..