What was found
THE EXHAUST VALVE WAS NOT STUCK IN THE GUIDE. THE BUSHING HAD BEEN CHANGED IN THE ARM AT SOME TIME (OIL HOLE IS NOT LINED UP WITH OIL HOLE IN THE ARM). MAYBE THE BUSHING WAS TOO TIGHT OF A FIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE EXHAUST VALVE WAS NOT STUCK IN THE GUIDE. THE BUSHING HAD BEEN CHANGED IN THE ARM AT SOME TIME (OIL HOLE IS NOT LINED UP WITH OIL HOLE IN THE ARM). MAYBE THE BUSHING WAS TOO TIGHT OF A FIT.