[lutach]

My fault, didn't know exactly which style you had. With those, I usually heat up the rear of the can a little to soften the glue and tap the shaft to pop the rear cap out. The front end usually has ridges and is a bit more secure and you can easily mess up the rotor.

Edit: I didn't read all of it. If you have a vice, use it to secure the end can and use a adjustable plier to pull the can off. If that doesn't work, see if you can get the shaft in he motor just enough to offset it a little and that will allow you to tap the rear cap off.