I think it's cool that it still retains the factory paint and has yet to be burned off. These are the Tecumseh mufflers that you would see years down the road all completely rusted and in some cases, rotted out.
The newer engines that are raw from the factory with no paint on the block(90's and 2000's) have a galvanized like mufflers and seem to last forever.
Looks like a bushing PTO, not a bearing. Not sure about the bore, but I doubt it's steel sleeved due to the year
I'm not afraid of death. I'm afraid of dying. I want to go peacefully in my sleep like my father did -- not like his screaming passengers
Its ball bearing crank, not a steel sleeved block. They used that 3.5 muffler in industrial/equipment application as well, I have the mate to that engine in crapsman stampings and colors off a yard vac. came with the same muffler and BB crank so I bought it to steal the parts from.