Thats handy Phil. I would think if there was corrsion on all plugs, whats on that guide would be it. But only on one plug, gotta be something else.
Would a dodgy lead possibly cause this? Or help...
Type: Posts; User: mudski
Thats handy Phil. I would think if there was corrsion on all plugs, whats on that guide would be it. But only on one plug, gotta be something else.
Would a dodgy lead possibly cause this? Or help...
It could just be leaking into that pot when the engine cools, then the warmth in the pot "steams' away the coolant giving the spark plug a corroded coating. Corrosion needs moisture to happen.
Cracked head or gasket letting a little coolant into that pot?