VCCA Home Forums Thread Like Summary - 1939 fuel pump

While trouble shooting my hard starting, I measured my fuel pump pressure and found it to be nearly 5 pounds. I think it should be between 3 and 4 pounds. Maybe my gauge is a little off. BUT..... after reinstalling my glass bowl sediment bulb, I noticed that it does not fill very fast. So I want to remove it again and try to measure the fuel delivery. Does anyone know how much fuel a pump like this should deliver? Thanks, Mike

That is interesting. I was wondering how you arrived at 6 oz/min. So, I tried to figure it out. If my car gets 15 miles per gallon and is running at 35 miles per hour, the car is using 2.3 gallons of gas per hour (35/15=2.3). A gallon is 128 ounces so the car is using nearly 300 ounces of gas per hour (2.3*128). Divide that buy 60 minutes in an hour and I get 5 ounces of gas per minute. Neat! So since my pump is delivering 5.3 ounces in 30 seconds or 10.6 ounces in a minute, My pump should easily be able to keep up with the demand for fuel the engine is making. I learned something, Thanks a million, Mike