Packard Forum Index » Post-War (1946-54)

On my dad's car there is a vacuum pump on the carb and it has a steel tube that goes to the windshield wiper motor (as expected) however there is a Tee fitting at the windshield wiper motor that has an open port. Where does this port supposed to go to?

Probably need to cap it off?!?!?

Look on the cowl front side, left end just before the cowl curves around to the fender and body -- almost under the patent plate -- for a large rubber grommet with 4 holes and maybe some hoses.

If you have the grommet or its remains, the tee in the wiper vacuum supply hose was most likely for the supply to a vacuum antenna. If no antenna, on some 22nd series cars they used an early version windshield washer that had a separate actuating button instead of the later version where it was controlled by the wiper motor switch cable and vacuum came from a port on the motor. If the car had that early version washer it would have had a vacuum supply from the tee.

If the car had neither option then you might ask your dad if he remembers if it had anything else. There was not that many 22-23rd factory options that needed vacuum -- but the car could have had some popular aftermarket additions that needed vacuum. There were small vacuum operated fans to cool the driver and I remember an ashtray that connected to vacuum so the smoke was pulled out of the passenger compt.

At any rate, if nothing is connected the tee needs to be plugged or eliminated. That is providing a huge vacuum leak and if the car is driven that way the lean fuel might be part of the cause of the high temp.

Please explain the "vacuum pump on the carburetor"; I'd have thought you meant a vacuum pump on the fuel pump.

Owen... yes too much small hand held computer (phone) typing with other distractions... yes fule/vacuum pump.

Yes Howard good call. . It had the 4 hole grommet and I asked my dad and it had a vacuum antenna and it did a decade ago and he replaced it with a regular one when it quit. I ignorantly though the port of the Tee fitting was a place for a filter to filter the air that the vacuum wiper motor was sacking.

THANKS AGAIN

Oh and btw that port has been uncovered for over a decade. I wonder why the engine had three burned valves?

Well if it's been replaced, this would be a uniquely awesome time to sell a guy the vacuum control from under the dash... Ha! (I'm laughing, but...)



My antenna is still serviceable but the control has been harvested prior to me buying the car. I was just about to post an "In Search Of..." post!

Check ebay they come up on a regular basis-as well as the antennas