Thanks for your responses.
Joe, there was some smoke reported when I accelerated.
Jim, I think the valve guide is okay. With the springs removed, I can put my
finger over the top of the guide, pull the valve down and the suction will pull
the valve back up. This is consistent on all valves.
Randall, I will leak test the cylinders to hopefully determine where oil is
coming from. To do this I will pour a small amount of oil (Marvel Mystery)
onto the top of pistons #5 and #6. I'll test the others this way also. Maybe
that will tell me something.
The oil loss and burned valve are probably related. I'll post an update.
Art Graves
Tulsa, OK
1976 Triumph TR6
> Thinking that the head must not have been torqued properly, I began cleaning
> my tools and shop for the next day. Then I noticed a gaping hole in the #6
> exhaust valve. I removed it and there is a 5/16'' chunk missing! My
> question
> is what could have caused that?
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