Fuel tank selector valve

[wilkin250r]

There are a couple different things you can try. You could try using TWO of the 3-port selector valves in parallel, one for fuel, one for return. I'm not sure how much power they are pulling, but I suppose I could help you find that answer and if the wiring will handle it. But I'm 80% confident it would handle it.

The risk is if the return valve goes bad and doesn't switch, you would then be returning fuel to your opposite tank. Not the end of the world, that fuel isn't gone, but it would certainly be confusing to the NEXT owner to diagnose that problem. (I can see the thread now. "I get 12mpg out of my right side tank, but only 4mpg out of my left?!? But then my right side is magically half full again?!?")

The other option is you wire the newer style 6-port motorized valve. I've never done it, so I don't know the exact details, but the theory is simple. The old single-wire valve used one power wire and two fuel-level signal wires (three wires total). The newer style uses two power, and one signal (still three total). Some dash wiring is required, but you don't need to run new wiring all the way back to the valve, you just re-purpose one of the signal wires.