Re: 1965 6.6HP Engine Teardown
Time to check the jug. Should be ok, remember it was just rebuilt by a pro. Looked ok but.....
Light scoring was visible in jug, nothing deep but should not be there.
Pulled the exhaust valve, noticed slight burr on stem caused by the keeper. Light file to remove. Spring cap had excessive wear on stem hole.
While pulling the intake valve the keeper caused a heavy burr, the worst I have seen. Hard filing to just remove the spring cap. Pulled valve and wow, had to toss the valve. the keeper slot was to wide! Way to wide, question if this is a Gravely valve. There was about a tenth of inch space when a new keeper was installed in the slot.
Ended up replacing the intake valve, spring, spring cap and keeper. Lapping valves and honing the cylinder. Replaced the exhaust spring cap and keeper.