I had the same problem with my Super-A, and at that time, there was a lot of discussion from different folks, so there may be stuff in the archives.
The pulley is just a press-fit, but there is also a key in there. On mine, the end of the crankshaft is internally-threaded. I used a two-jaw puller, but there was nothing on which to put the "point" of the threaded part of the puller. I screwed a bolt (I think it was a 7/16) into the end of the crankshaft, then drilled a "divot" into the center of the head of the bolt so the "point" of the puller wouldn"t wander. (The head of the bolt was also of a size that the center hole of the pulley would come out over it). Then, only having propane, I heated the dang thing for 20 minutes, so it would hiss when I spit on it, but some REAL heat would probably work much better. Then I cranked on the socket over the threaded part of the puller WAY harder than I thought prudent, (but this was like the 3rd day I spent trying to get the mother off), and with a loud *crack*, it finally started to move. Honest to Pete, I thought I broke something. Another hard crank, another *crack*, and after that, it came off like it oughta, but those bears are on there b*tching tight! Some guy, if I remember right, had some way to do it with a hydraulic jack. Hopefully somebody will reference that, because it HAS to be easier than how I did it. Going back on was easier, after it was cleaned up, and I had the pulley in the oven at 300 degrees. I used a hydraulic jack for that process, and it only took two minutes. I have pictures of the rig I used, once you get to that. I hope I never have to take a pulley off again for the rest of my life, which since I"m 62, oughta only be a couple of months or so. LOL
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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