I completed both sides of valve cover gasket change, found some oil on spark plugs and one of coil tubes, is there some big problem of engine?
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Thanks, I just replaced them. How about those plugs? Not that bad except the oil?Hope you replaced the spark plug tube seals in the valve covers... Oil is leaking into the tubes because those seals are bad.
All that oil is from the tube seals allowing it to leak into the tubes. The plug tips look fine, and that’s what matters most for spark and efficiency.Thanks, I just replaced them. How about those plugs? Not that bad except the oil?
I already replaced the plugs, just want to know if there is some issue represented by these black plugs
I feel home free now. ThanksAll that oil is from the tube seals allowing it to leak into the tubes. The plug tips look fine, and that’s what matters most for spark and efficiency.