My motor runs great for 15 to 30 minutes, then quits. New fuel pump, old one was intermittent, you could tap on the fuel pump case with a screwdriver handle and it would turn on and off, rebuilt the lift pump, checked lines and pulled fuel pickup, all clean. If you can catch it before it dies, pumping up bulb makes it run fine. If it quits, pumping up bulb makes it run again. Have checked all lines (no problem, even pressurized line with 15 PSI and it held for 5 hours before I quit test), ran off 6 gallon gas can with 8 ft of hose, same problem.
If you put a funnel on the end of the line and fill with gas, gas sucks in and can see water seperator screen bouncing back and forth, top off funnel and it will pump fuel then stop randomly.
When pumping from either tank, internal or seperate 6 gallon, line goes soft and there is air in the line, again lines do not have a leak ?????
Was thinking fuel float in VRO or some how air is being pumped back into the line from the engine.
Computer also says there is no problems.
If you put a funnel on the end of the line and fill with gas, gas sucks in and can see water seperator screen bouncing back and forth, top off funnel and it will pump fuel then stop randomly.
When pumping from either tank, internal or seperate 6 gallon, line goes soft and there is air in the line, again lines do not have a leak ?????
Was thinking fuel float in VRO or some how air is being pumped back into the line from the engine.
Computer also says there is no problems.