My 73's gas gauge wasn't working and the tank was trashed so I got new tank, straps and sending unit from LMC and dropped the old tank. (Pro tip for anyone as dumb as I am, 20 gallons of gas is heavy. Drain the tank before you start to lower it.)
The old tank and the new one are pretty different. Looks like the new tank will fit but the new sending unit looks like modern-ish ones I have seen with three fittings coming out the top along with the wire. The old sending unit only has the wire. There is a fill hose and filler vent hose on the passenger side of the old tank and two smaller inlets welded directly into the old tank (not the sending unit). One inlet is on the tranny/engine end of the tank about midway up and the other inlet is on the top near the sending unit. Questions:
How do I know which old hose goes into which sending unit inlet? Looks like one inlet goes to the bottom of the tank and looks by the filter sock to be the one that feeds the pump fuel. Is the other one a vent/return line? How do I know which truck hose goes to which? I have zero confidence that I can follow one line or the other all the way to the fuel pump.
While I have the tank out, I want to clean up and paint the underside of the bed and frame. As long as I plug the fuel lines, I'm not creating some kind of fire/explosion hazard by throwing a few sparks with a wire wheel, right? The old tank is outside the garage with all inlets plugged.
The old tank and the new one are pretty different. Looks like the new tank will fit but the new sending unit looks like modern-ish ones I have seen with three fittings coming out the top along with the wire. The old sending unit only has the wire. There is a fill hose and filler vent hose on the passenger side of the old tank and two smaller inlets welded directly into the old tank (not the sending unit). One inlet is on the tranny/engine end of the tank about midway up and the other inlet is on the top near the sending unit. Questions:
How do I know which old hose goes into which sending unit inlet? Looks like one inlet goes to the bottom of the tank and looks by the filter sock to be the one that feeds the pump fuel. Is the other one a vent/return line? How do I know which truck hose goes to which? I have zero confidence that I can follow one line or the other all the way to the fuel pump.
While I have the tank out, I want to clean up and paint the underside of the bed and frame. As long as I plug the fuel lines, I'm not creating some kind of fire/explosion hazard by throwing a few sparks with a wire wheel, right? The old tank is outside the garage with all inlets plugged.
