<VV> 140 Engine: Dropped Valve Seat or ? ? ?

[FrankDuVal]

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> Does anyone have any suggestions for other things I can check that could cause this problem?  I don't understand how a seat could re-insert itself. Could the valve be sticking in the guide?  Can anything be done about it other than taking off the head?
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> They do !   pull the head!
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> Matt Nall
>
Yes they do, I agree!

Time to pull off both heads and send them out for deep seats. Then you 
will not be doing this again.

Or if you are near Eastern PA, you can go to the parts sale Bob Marlow 
just posted and take your chances with another used head.

Frank DuVal