I've got a fuel delivery issue.
Currently I have a cheapo low pressure electric pump mounted on the frame rail.
Recently I swapped out my '79 tank (which had the factory e-pump removed) for a '83 tank.
The '83 had the mech. pump on the motor, so the internal parts of the tank are different than the '79 tank.
I've unhooked all my lines, blew them out with a blow gun, and even tested the pump with a jar of gas. Everything is clear, and the pump is working. I can even suck a little gas from the tank pickup, which isn't blocked either.
I'm not getting gas to the carb. When the pump isn't getting liquid (just air), it will "knock", and that's what it's doing now. I can plug the line at the carb, and the pump will quiet down, and build air pressure.
So, do I have a tank problem, or is the fuel pump going bad? I really don't want to drop the tank (again).
Currently I have a cheapo low pressure electric pump mounted on the frame rail.
Recently I swapped out my '79 tank (which had the factory e-pump removed) for a '83 tank.
The '83 had the mech. pump on the motor, so the internal parts of the tank are different than the '79 tank.
I've unhooked all my lines, blew them out with a blow gun, and even tested the pump with a jar of gas. Everything is clear, and the pump is working. I can even suck a little gas from the tank pickup, which isn't blocked either.
I'm not getting gas to the carb. When the pump isn't getting liquid (just air), it will "knock", and that's what it's doing now. I can plug the line at the carb, and the pump will quiet down, and build air pressure.
So, do I have a tank problem, or is the fuel pump going bad? I really don't want to drop the tank (again).