If any of the older hose in the system is dry rotted ( like back at the tank or jumpers in the front to the pump) or even if the hose clamps are not as tight as they need to be on the systems nipple connectors then the pump when driven will gladly suck air before is sucks much heavier fuel.
A old mostly clogged fuel sock in the tank will also make it hard for the best mechanical pump to suck in fuel .
Has this sock in your system ever been replaced?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
|