Reply To: 1947 7.5 hp Scott Atwater

[Geer Pyron]

I’ve mulled over all of the ideas above. The sleeve would be the first try. If I fail at that Ill try making a new cam. I do have access to a lathe with a four jaw chuck but I don’t have experience with lathes so the drill press option will be my first try. If it comes down to it.
As far as the offset goes, the cam seems worn fairly uniformly so I’ll just take some measurements from it, pretending there is another 32nd all around it’s diameter (?).
But, how crucial would all this be? Would pumping efficency be that effected by the 32nd” lost on the cam (maybe even less than 32nd)?
Anyhoo, I’ll try to keep y’all posted.
G
PS I did start the motor the other day, sans gearcase and such. I couldn’t help myself. It’s the first time that one of my projects started on literally (sorry to anyone out there who has a 15 year old for using that L word) the first pull.
Of course I immediately shut it down once I knew it would run.
G

JMGP