Just solved a clicking motor problem and wanted to let everyone know in case someone runs into the same problem.
I had a clicking motor noise and initially I thought it was either a loose magnet or a seized bearing inside the motor. Turns out, it was none of that! It was a loose motor pulley + the key way shifting back and forth. The clicking noise was from the key way shifting and banging against the key way groove.
I was fortunate to notice it before I started to disassemble my motor.
So, if you have clicking noises, it could be also from a loose motor pulley.