Ford Mustang Forum banner

1968 Mustang coupe six cyinder. No fuel from fuel pump

1672 Views 4 Replies 4 Participants Last post by  chumslinger
on our 1968 inline six coupe we just installed rebuilt carb on rebuilt head and were all excited to turn it over. It looks like we are not getting any fuel to the carb. I disconnected the fuel line from the carb and turned the engine over but don't get any fuel. I am getting fuel from the tank to the pump when I siphon it out.

The car was sitting without carb and head for about 3 months. Do I need to prime the fuel pump to get this working? If so, how do I do that?

Thanks in advance.
1 - 5 of 5 Posts
good chance the diaphram is shot. good practice to just replace it. (they dry out and rip after sitting) should start pumping relatively quickly. make sure you dont have vapor lock and your gas tank is vented. if not that thing will have a horrible time pulling fuel. the only delay really should be fuel filling up the bowls. if you dont care to cut your line between your pump and carb you could install a clear filter to see if its getting there which i assume not. the only way to prime it is to siphon gas to the pump. after that it should start pumping. again its only 20 dollars from an auto parts store and is good practice anyway.
anymore useful info would be helpful

best of luck
See less See more
What Gearhead said!:bigthumbsupThe pump is gravity fed from the fuel tank and after a little cranking, the pump should be flowing gas to the carb. Good luck!
I would prime the engine, just take a little gas like a capfull and dump it into the carb venturi, you shouldn't need to press the gas pedal, if it helps it is okay, but the engine should start, and run until the capfull is used up (about 3-5 seconds), you might have to prime it 3 times or more. Pull your oil dipstick out and make sure it doesn't smell like gasoline. Post your results. Good luck.
See less See more
installed shiny new fuel pump and gas immediately was sent flowing to the carb. Thanks for the advice everyone.
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.