I picked up my tractor about 30 years ago and used it to clear snow off my long driveway and plow the sidewalk. I had a gravel driveway then and the lil' Model L with wheel weights and chains worked better than any snow blower I had tried. (didn't shear pins and throw the gravel everywhere!) I loaned the Model L to my brother-in-law to bulldose out a cellar under his weekend cabin. He was slow in returning it and by the time he did, I had paved the driveway and gotten a bigger snow blower. The tractor was then stored away in the bottom of the barn and has been there for the last 15 years.
Anyway, now my son has a house with a gravel driveway and I'm putting the tractor back in service for him.
A previous owner changed the engine to a 3 hp Briggs 80200 and instead of the 3-step pulley I believe these tractors are supposed to have on the engine output shaft, he mounted a 2" diameter pulley and a 2 1/2" diameter pulley back-to-back.
I would like get the right size 3-step pulley for it, but I don't know what the 3 diameters on the pulley are supposed to be. From photos and parts diagrams I have seen, it looks like it could be a very common 2"-3"-4" step pulley, but I can't be sure.
Could someone please tell me the three diameters of this pulley?