Magnetic pumps are pretty much indestructable unless you let them run dry in which case they will overheat. You probably just didnt have a bearing lined up correctly. Most of the times there is a bearing on the end of the shaft that stays inside when you remove the shaft. This bearing usually gets lost or gives you a hard time getting the shaft centered inside it. Ive had saltwater aquariums for years nd have had to take apart plenty of magnetic pump motors.
Glad to hear that they can help you out. Sounds like you have a solution to your issue.
On my pump, I believe I just loosened the screws that attach the motor to the pump end and shifted the alignment slightly so that everything rotated freely. Then I tightened everything back up again, end of problem.
Fasco rocks. They fixed the problem and promptly shipped it back to me at no charge. I'd recommend them to anyone looking to buy a motor. Clayton was just the nicest guy to ever talk to.
AAAAAAAAA++++++++++ to Fasco.
My pump is fixed, now I just need to find time to brew.