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bad valve seats?

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bcjjones

10+ Year Contributor
509
4
Nov 3, 2011
Austin, Texas
What can cause multiple valve seats to go bad? The valves aren't bent nor burnt but about 8 valves aren't seating correctly.

Any help?
 
A badly warped head as the head bends into a U shape, the seats and guides can move .

The valves will grind straight, but will not seal on the seat
 
Timing was spot on....like I said the valves are not burnt nor bent
 
carbon build up maybe? or what bogus said, the head could be warped just a little.
 
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