Dave Winter asked:
> My header tank always goes down, and the previous > owner explained that the tanks were merely leveling. Dave, et. al., The engine running fuel level in the tank is normally somewhat above the bottom of the overflow outlet. At higher rpms, it's somewhat higher. This provides the "head" pressure that moves the fuel through the overflow fast enough to keep up with the fuel pump flow minus the engine's draw. When you shut off the engine, the fuel level slowly drops to the level of the bottom of the overflow tube. That's a visible drop on the gauge and takes some time. But, it should NOT keep dropping after that. It SHOULD keep its nominal fuel capacity, either about 5 or 6 gallons. Ed
