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- MilkyWay Galaxy
Once a spark plug's ceramic is carbon fouled (say a new plug run way rich for 5 minutes and loaded with carbon) is the plug toast?
I cleaned mine, but its nearly impossible to get all the last traces of light carbon stain off the ceramic insulator. How much fouling can the ceramics take with carbon before they ground out the spark?
I used brake cleaner and Gumout carb cleaner, soaked them over night, and used a plastic brush and compressed air blow gun. Got them about 75-95% clean...but traces remain. Anyone have any experience with the limits on this???
I cleaned mine, but its nearly impossible to get all the last traces of light carbon stain off the ceramic insulator. How much fouling can the ceramics take with carbon before they ground out the spark?
I used brake cleaner and Gumout carb cleaner, soaked them over night, and used a plastic brush and compressed air blow gun. Got them about 75-95% clean...but traces remain. Anyone have any experience with the limits on this???