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Posts: 8
Joined: Wed Oct 04, 2017 9:07 am
Fuel pump/carburetor questions
There's one port on the carburetor with a t-splitter one side goes to the distributor but the other was open I am not sure where it used to go but assuming it shouldn't be open to atmosphere, I plugged it up temporarily and if I don't find something (a hard line with flare fitting) that should go somewhere I will just get rid of the T and eliminate the extra hole.
Well anyway to my main question. I do not have the gas tank hooked up yet because who knows whats in there. I took the inlet side hose off the fuel pump and just ran a hose down to a quart jar of gas. What surprised me was that I went through about 2-2.5 quarts of fuel this way. There is only so much space in the fuel lines and fuel bowl on the carb so I have to assume I am leaking fuel to the crankcase. I pulled the dipstick and smelled it and I didn't smell gas but having just cleaned the carb I'm not sure my nose was very sensitive to that smell at the time. There is no return line to the fuel tank that I can see so I assume the pump just makes minimal pressure and the float is supposed to stop any excess fuel from coming up the line once the bowl is full, correct? Do these fuel pumps have the ability to fail in a manner that allows fuel to leak into the crankcase directly at the pump? Or should I pull the carb and relook at the float?