Thanks for Posting Fix. Nice to know  the outcome  and it may help Someone else down the Road.

  

Finally got it folks, thanks for all the help. Found main problem was a collapsed fuel line next to the tank. Bird is purring now, thanks to all of you

Lee

No vent pipe in a 55/56 Bird.  Don't know about the sedans.  Run the car without a cap or drill a 1/16 hole in the cap to see if it's better.

Might try this - disconnect the pump from the tank.  Run a flexible hose from a clean can of gas to the pump ( do not connect it to the flex hose off the pump).  Run car - of course you cannot drive the car but if it runs ok for a relatively long time then the problem is most likely in the tank or lines.

If your only going a short distance and fuel delivery stops, vapor lock most likely is not the problem.
Possible problem
Air leak in the fuel supply system somewhere that causes loss of suction of fuel. Check all fittings and soft hoses
Crap in the gas tank closing off the outlet (just looking through the sender hole may not pick this up)
Flex hoses collapsing on the inside
Tank not vented properly
Bad pump 

Don't forget to let us know what the problem was when you have it sorted out.


54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Exactly what year BIRD and ENGINE do you have?

New means nothing, it (they) can be defective. You need to first perform a fuel pump pressurize and volume test. That will give you an idea of where to start.

____________________________

If the venting is thru the cap on a 55-56 Bird, is your replacement a vented cap?   The Fuel filter goes dry when you drive it?  Something is plugged up somewhere. How old is the filter?..


Paul

Hey Folks

Frustrating day with the old bird, replaced the gas cap, could not find a vent pipe.  Opened up the gas tank through the access panel in the trunk, found clean gas no debris.  

After all that I installed an electric fuel pump to see if that would make it better, no luck.  Removed mechanical and placed block off plate. One block I all I can get before I lose the gas in the filter.  Carb is sitting on a gasket only, could the be the issue?  I'm running out of options.  Thanks guys for all the help.  

Lee

I think you may have junk in the gas tank or a clogged fuel line.   How old is your gas tank?   My car left me on the side of the road two times before I broke down and bought a new tank.  I'm only running a mechanical fuel pump and have had no problems since.

If You look at the Gas Tank there should be a small Pipe running off the Side.On My Car it runs into the Trunk and then up the Tank Filler Pipe. Might be different on Bird.

  

Got the swoosh at the gas tank cap replaced with new. Still troubles, when looking in the filler tank pipe no vent pipe. Am I looking in the wrong spot

When it happened to me in my tbird it was the soft line from the hardline from the tank to the fuel pump collapsing from the ethanol softening the new old stock soft line under suction. Replaced it with a short piece of fuel injection line haven’t had a problem in the years since. MIKE

Mike, still lovin his 57 t'bird after 53 years!