my 1993 f-250 460 keeps fouling the #5 plug
Oil fouling or carbon fouling?
oil..but what is it for both?,just in case im wrong...lol
its a five speed 460 engine
Oil fouling is likely from a bad valve stem seal or worn oil control rings. I would use a spark plug from a hotter heat range to burn off the fouling. Carbon fouling is from running too rich.
do you have to take the motor apart to change the rings and valve stem seal?
Yes you would.
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