There is no fuel at the filter. I have followed the system back to the in-tank pump where I have 12 volts/2.5 amps on crank. The pump appears to be working, but the fuel appears to be dumped back into the tank via a Y connection going to a green pipe that disappears into the depths of the tank. We have now removed the pump unit, with Y connection, and three of us cannot work out how the system of pipes, strainers and pick-ups work. Does anyone have a working knowledge of this overcomplicated lift pump? TIA,
Peter