I really didn't know where to post this, but this engine is in a Bobcat skid steer. It is a transplant, and we do not know what it originally powered. The only numbers/letters we have are F3L912, and 6561063. We are trying to remove the damper, and we aren't sure if this a right hand or left hand threaded bolt, or how to remove it without damaging anything. The engine will only turn approximately 180 degrees, and we would like to dig further, as removing pan doesn't show anything amiss. If anyone has any insight on this problem, we would appreciate any and all input Thanks Butch.
Remove tin and pull the cylinder heads. More likely to be piston/valve issue than a gear train problem. Link to a copy of the workshop manual: https://www.dropbox.com/s/pe27ayvpbagxxkr/912 WORKSHOP.pdf?dl=0
6561063 looks like a bobcat PN, but no idea what it's for. like to see some pics of this machine if ya dont mind posting a few 3 cyl air cooled engine? :drinkup
Agree on the remove tin and pull heads, can have them off faster than I can type this!