SUPER C C-123 Crankshaft pulley removal

I m having trouble removing the cranksaft pulley on my Super C. I have a 3 arm puller on it and it doesn t want to move. According to my manuals there is nothing as far as bolts, set screws or any other locking devices on it. I didn t think it should require heat but I m starting to get desperate. Send a phone number or call 610-633-1989. Thanks Joe

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

Joe, Search the archives as there are several articles and pictures of a puller that can be made to remove the pulley. There is a really good one by Keith in Oregon when he restored the Super C he did with his son Shawn. Forget the three jar approach or you most likely will be looking for a new pulley. You need to fabricate and few steel pieces for a puller along with some all thread rod and use a hydraulic jack to remove that pulley. To put it back on the tractor you need to heat the pulley in an oven for some expansion as that is what holds it on - a very tight press fit. Good luck, Hal.

You need a bearing seperator behind the pulley to keep from breaking it. The hydraulic jack mentioned is probably easier, but not absolutely necessary, a puller will take it off. To reinstall, you do not need to heat it if yours has a threaded hole in the crankshaft, just tighten a bolt.

You need a puller like Bigdog made for his Cub's damper pulley. Use a split bearing separator too. Hal

OMG, I forgot to mention the bearing separator. What a thing to forget. My two-jaw puller was on the bearing separator.
Absolutely do not put a puller on the pulley.

The reason they are so hard to break loose is because you are heat shrinking them on. All those little humps & grooves in the steel lock together. I polish both parts really clean, oil them & press it together cold. I have had no trouble getting them apart many years later.

Here's a sketch too. Any metal shop can make one and most metal shops have hydraulic presses that punch a 13/16" hole for the 3/4 allthread. Check these dimensions to see if they're close. Hal

You can get it off with a big two-jaw puller, a bearing separator, and an oxy-acetylene torch to heat the shank of the pulley.

You're going to need a new seal on the front cover anyway, so why not use some heat so you aren't stressing the bejeezus out of everything.

Like others have said, DO NOT pull on the pulley itself with the puller.

Once it's off, clean the shaft and the inside of the pulley. It'll reinstall easily.