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Re: Continuing missing F-20 engine saga
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Posted by Bill Smith on December 08, 2003 at 11:38:52 from (63.147.130.108):
In Reply to: Continuing missing F-20 engine saga posted by Pete L on December 08, 2003 at 10:22:10:
A popping noise at the intake sounds to me like a valve or seat problem in the head. Kind of baffling though, since you say you ground valves. Did you really take the time and do a good valve job as far as making sure the valves, seats, and guides were all good and make sure the valves seated properly when you put it together? If you got a single valve problem, the mis should be restricted to that cylinder but may not mis every time. If you got multiple valve problems, the mis could vary among the cylinders with valve problems. Popping noise from exhaust or intake, is a pretty good indication of a valve problem. I'm not saying that is your problem, but would be my first guess.
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