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New to the forum, While not new to me I am now the owner of my grandpas 56 F-100. (279 w/ what appears to be the factory 2 barrel carb)
This pickup has always ran great, that is right up to the last month or so when I inherited it. The pickup will idle for a while but eventually die, the greater the load or rpm on the engine the quicker it runs out of fuel. Looking in the sight hole I can see there is little to no fuel in the carb.
I have replaced the filter at the pump (just to get that out of the way) but it has not helped the situation. Tonight I had some time to pull the fuel line off of the carb and run it to a small container to see if the pump was moving any fuel. There is a verry small dribble coming through, not enough to run the pickup.
So before i condem the fuel pump, is there any thing else between the pump and the carb to check? The fuel lines (while original and well used) arent kinked that I can see. Is there a sock or anything in the tank that can clog up?
I just had the same trouble with the 215 6 cyl. in my '53. You can go to the thread search & enter, My 215 dies out. This will give you some things to try. From your description the first thing I would try is run a gas line from a separate gas can to your fuel pump & see if it draws the fuel you need. That way you can narrow down your search. If it still doesn't run, chances are it's not your tank or fuel line between the tank & fuel pump. Good luck,
Agree with Grant, try a separate fuel source first. The fuel lines on these collect a lot of very fine rust particles, to the point they can become plugged.
Take a look thru the filler on the gas tank with a strong LED light. See if there is a lot of rust in there. If so (very common) you'll need to take the tank out and get it cleaned, or replaced.
I want to share a little trick i have done on all my carburetor fueled engines that corrected a problem close to yours. Check to see if you have a small filter where fuel line goes into the carburetor. I have always added a 3-6 pound inline electric fuel pump just off the tank.
Ebay has these for under $10. It makes any mechanical fuel pump last the life of the truck . It stops that fuel line air gap, Hard cranking in winter and did wonders helping the old Holley 4 barrels.
