Oil fouled plug - possible causes?
#17
Re: Oil fouled plug - possible causes?
I had an 89 350 that would oil foul a plug within 200 miles. It was from a worn valve guide. New seals didn't make much difference, but rebuilding the head fixed it.
#18
Re: Oil fouled plug - possible causes?
I just rebuilt the engine, including head job and the problem started afterwards. 2 valve guides were replaced. The only thing I did differently was the Total Seal rings.
#20
Re: Oil fouled plug - possible causes?
The Total Seal rings have to be filed to fit. I used a ring file tool. I know they vary a little but they are all within the required tolerances. Also, they are gapless once you install the second thinner steel band.
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