motor was not working

Actually, a friend did it with me watching. He took out about 6 screws, removed the back plate and the old motor and installed the new motor when he realized the hole on the plate that goes in front of the motor was on the wrong side! This would have been a snap and done in about 30 minutes if it wasn't for the hole on the wrong side. So he drilled a hole on the correct side of the plate, using the old plate as a pattern, and it works fine!