Farmall Cub

It's not fastened, it's a friction fit. If you search the message archive with the key words crankshaft pulley you should find several posts on the topic. Basically - make sure you use a good puller, use a backer plate behind the pulley - do not pull against the flanges, they will break, and you may have to apply some heat in order to get it off. Soak with penetrant. Check the article at the link:
http://www.cleancomputes.com/Cub/Maintenance%20Tips%20and%20Techniques/Crankshaft%20Pulley%20Removal/Crankshaft%20Pulley%20Removal.htm

BigDog is right. I understand that there's a special puller made just for these, but I've never seen one. When I pulled mine, I used a very strong bearing puller with a new backing plate, large bolts and plenty of careful alignment...it came off in three heartbreaking pieces. The problem was that, despite my best efforts, the puller got just VERY SLIGHTLY off center, contacted the rim and busted it. This was because I didn't watch the timing pointer...it got in the way of the puller and threw it off a little. Removing the pointer is an option...it's a press fit and you'll mark it up, but it will come out if you're careful. Getting it back in is your baby.

Here's a link to a puller I made after I broke a 5 ton gear puller. The notch in the backing plate is small enough it pulls against the thick part of the hub without touching the falnge.

http://www.farmallcub.com/phpBB2/viewto ... ley+puller

Wow! What a great rig! How thick is that steel you used for the brackets? I'm going to attempt a copy of your rig. Thanks!

The backing plate is 1/2 inch steel. I used 3/4 inch threaded rod for the boltw, though smaller would work. don't remember without going to the farm and looking what the frame the jack rests on is made of. You will need either 1/2 x 13 grade 5 or harder bolts of 2 or 3 differetn lengths (4, 7 inch) to screw into the end of the crankshaft for the jack to push against. The shop that made mine said he would make the brackets for $35 plus shipping if anyone else wanted them.

I was just wondering how you put the pulley back on???

Io - heat the pulley in a 250 degree oven for at least 30 minutes. Thread a 1/2 all thread rod into the end of the crankshaft. Place the heated pulley on the shaft,follow with a backer plate and then a draw-nut and pull it onto the crankshaft.

Thanks Bigdog. I knew there was a simple trick to it.