The motor made more of a softer hum. After the start capacitor was replaced, the motor starts fine and you can hear the switch clicking when it comes up to speed. You can stall the motor at full speed and spin it and get it to rotate the opposite way. however the motor makes more noise that way. As far as what size the motor is and is the motor large enough for the compressor, I can't remember what size it was since it's been a while since he had it here. Possibly 2hp. I don't know if it is sized right for his compressor or not but would think it is since it is a factory setup and was run for years this way. He said he checked out the compressor pump and it turns freely as it should. It is a low rpm motor ( around 1725 rpm).
I beleive the information I provided is all correct but it has been a few month since I saw it. He is bringing it in sometime again so I can take a fresh look at it.