Vacume wiper motor for 37 Packard

Posted by rick tice On 2014/3/6 15:21:20

I have a wiper motor that has been rebuilt several years ago but does not work at all. The vacuum derives from the vacuum part of the fuel pump and appears to be working.
With the engine running what should the vacuum read prior to going into the vacuum motor?

Being the car sits like most collectible cars do, how can I keep the vacuum motor working after having it rebuilt?

Rick