Take the motor apart and clean and lube the moving parts and it should work fine. Extend the vacuum line so you can test it before reinstalling...what do you have to lose?
Mike B
Yes, the vacuum motor is easy to repair, but if you intend to drive in any amount of rain, and can find the electric motor by all means
install the electric motor. I got the electric motor out of a 57 Chev and it was a bolt in. The motor is actuated with the original wiper selector
cable.
Bob
