So after a long absence I'm back to working on my 67 A100 (318 automatic). I filled up the tank with about 15 gallons of gas, went to fire it up but was not getting fuel to the carb. Mind you, I had this running last year with a temporary gas can (and I had replaced the fuel pump too). I pulled off the rubber hose connected to the sending unit and surprisingly no fuel came out. WTF?
Before installing the new tank and sending unit, I had blown out the entire fuel line with no restrictions, replaced an old piece of rubber line after the tank. The fuel tank is new along with the sending unit and sock.
Siphoned out the gas, pulled the sending unit out, thought I had pushed the sock too far onto the sending unit, thinking that I had blocked off the hole. I took the sending unit and placed it (the sock end) in a large buck of water, no water came out at the other end. I then pulled the sock off half way, placed it back in the water, then I had water coming out the sending unit.
Filled the tank back up with fuel, tried it again, no fuel to carb. It was recommended to me that I try blowing compressed air into the fuel filler opening to help push the fuel out and into the line. All that happened there was air going in and the fuel splashing back out the filler opening. I also tried blowing into the tank from the vent opening at the top of the tank. Same affect, I could see the tank expand from the air, but fuel came gushing back out thru the vent tube.
My thoughts are still with the aftermarket sock and is it allowing enough fuel to soak thru.
Recommendations? Be kind with the replies, I may have forgotten to add some information.