ford 345d

I have a Ford 345D and I just replaced the water separator and the fuel filter. (Water separator had a chip at the top, very very slowly letting in air) my question is: I put it back together and the fuel isn’t gravity feeding into the separator. There is only 5 gallons, maybe 4 in the tank, is...

My ford 345 D stalled the other day, so I checked the air filter and then changed the fuel filter and cleaned out the water separator. Bled the filter, then the fuel injector pump, then had my brother start it and give it full throttle while I had all 3 injector lines cracked open. Once I saw no...