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My 53 Ford F500 is not running right. When I do get it running, it runs pretty good, after I shut it off, a few hours later this float bowl is empty. I can’t see where it is leaking. No gas on engine, no gas dripping on the floor. What could be wrong?
Do you have a really strong gas smell under the hood or around the truck? It could be evaporating from the engine heat after running. Since you don't detect an external leak, the only other thing I can think of it could be is leaking through the carb into the engine. That's not a good thing.
It can't be siphoning back through the fuel pump because of the location of the needle and seat, so that's out. The only other two places the gas can go is out through the cover gasket (looks like your manifold is pretty wet), or like 52 Merc says, down into the engine via the carburetor passages - but that requires vacuum to pull it through. Does it do it with the air cleaner removed?
Does pumping the gas pedal get gas into the bowl?Or does the engine have to be at least turning over or running to get the pump to actually pump gas up there?
Made a cork gasket, took line off at fuel pump and blew gas up to fill the bowl. Bowl is full now. No leaks as of yet. I’ll look again in the morning..
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