First, I would make sure that the fuel line isn't clogged with rust from one or both of the tanks. I'd disconnect the line at the various places and blow air through them(take the gas cap off first to avoid blowing up the tank). I'd drain them and peek in there with a flashlight to gauge the condition of the inside. The extra tank doesn't need a sending unit. It will just drain via gravity the way the one in the cab does. I've never seen a vent like that on an AD fuel sender. I think I would remove it. Why would you want gasoline fumes venting into the cab?
Second, Check your fuel pump. Disconnect the fuel line at the carburetor and see if fuel actually pumps out of the line at the carb. Is there a fuel filter anywhere in the system? remove it and replace it.
Third, if you are getting fuel delivered to the carb, you may have problems inside the carb - sunken float, stuck float, bad accelerator pump, stuck needle and seat, etc. What do you know about this truck's history? Did it sit for a long time? If so, drain all the fuel and use it for your lawn mower. Ethanol may have gummed the works.
Fourth, what carburetor do you have? I'm assuming you have the original 216 engine.
Fifth, I know it starts on ether but check your plugs, cap, rotor and points anyway. It's a lot easier to ignite ether with a weak spark than it is gasoline.
Last edited by Otto Skorzeny; 02/20/2023 9:01 PM.
