ORIGINAL: downunder
Does this happen with the tank about half empty (half full
) and are you suddenly seeing air bubbles in the line? Maybe a pin hole leak in the fuel feed line that gets uncovered.
Yeah, thats what I was getting at. This seems more like a cracked pipe, cracked clunk or tube pinhole issue somewhere within the fuel tank.
But I seem to recall it being mentioned that another fuel tank had been used for bench runs. If not, that would be the first thing to do. Different tank, good test stand.