Re: Fuel Issue / 58 Packard

Posted by TxGoat On 2023/11/20 19:29:52

I believe that some of these pumps will run in either direction depending on whether the red wire is grounded or hot.
For a positive ground Packard, the red wire would need to be grounded, and the black wire would be hot. I'd check the wiring polarity, and then test the entire installation by putting a length of fuel line hose on the carburetor line and placing the other end of it in a suitable container, and then turning on the pump. Fuel should flow from the hose almost instantly and it should be a good stream. (Do this outdoors and use caution to avoid fire/explosion. Best to have 2 persons, but one can do it if caution is used.)