Sorry to be bumping an old thread like this, but I am new to truck repair and had a similar question.
I have been trying to get my '54 3100 running well enough to drive and a friend told me that he thought I wasn't getting enough gas to the carb because the liquid level in the inline filter dropped too much when the truck was running. He thought it might be the fuel pump.
I have pulled the fuel pump off and it seems to work fine. The first time I operated the pump manually I didn't realize that there was still fuel in it and gas shot out of the discharge, coating my workbench. I assumed that this means I am getting enough flow through my pump, but is there a way to check to make sure?
If I did put a pressure gauge on the discharge, what range of pressure should I be looking for?
Do I need to check the discharge pressure or does the evidence of shoting gas mean I am probably fine?
BTW - I currently have the gas tank out to clean it, am replacing the sending unit, have rebuilt the carb and have blown out the fuel lines. I haven't put it all back together yet, but I haven't seen anything that would make me think that I had a clogged line somewhere.
My fuel pump is sealed so I can't take it apart without bending metal.
