Packard Forum Index » Pre-War (1899-1942)

Still figuring out my options on my fuel pump situation..I have a nice rebuilt fuel pump off a 1940 110…mine is a 1941…first question is ..is the fuel pump for the 41 also supposed to send vacuum to operate my wipers? I have read about this but I don’t see where that works on the mechanical fuel pump I have..it looks like my wipers work with electrical motor..and the fuel pump is for fuel only..I see only an input and discharge line on it..assuming that line from tank in and line out to carb? I have a pass through electric fuel pump already mounted at tank regulated at 3 psi that is powered at ignition…I was hoping to install the mechanical pump and take electric fuel pump off ignition and use independently as a fuel primer only..so my thoughts were to run fuel line from electric fuel pump to the mechanical pump at engine base and then out to carb..would this work? Appreciate any help..I know I have asked about this before somewhat but I now understand a little more about what I have so trying to do it correctly..tks!

Believe the 40 thru 42 - 110's were the few conventional body models that had electric wipers. Clippers thru 47 and the 40's prewar conventional body 110 models had Stewart-Warner electric wipers so only used the single action fuel pump but all others had vacuum wipers and used the dual action fuel pumps.

I think you are correct..mine looks like a single action…seems simple to install and operate off cam I assume..I would like to use it and not have electric pump on continuously but uncertain if I can plumb fuel line from electric fuel pump into mechanical fuel pump or make two separate lines using at tee somewhere …?