Sorry I'm not sure , do you mean that the fuel lines from both the main and the auxillary tanks pass through the stock fuel pump?If not how does the stock fuel pump, pump fuel through the auxillary line? It may be clear to others but I'm confused. Thanks for any clarification.I am not running an aux fuel pump only the stock one, it pulls fuel from either tank depending on witch way the valve is set. I have an electric switch that switches the fuel gauge and the valve at the same time, works great.
I only use the factory mechanical pumpA couple questions:
For you guys with the Pollak -
Did you also use just one electric pump between the valve and the aux tank?
Did you by-pass the mechanical pump at all?
Did you block off the "return line from the carb"
Was there no polarity issues with the Toyota gas guage and the switch and/or the JCW universal sender?
Ed,You're going to have a real hard time doing that with an FJ40, since the stock filler neck goes in just behind the passenger seat. And the filler for the aux tank is under the body just above the rear axle. I ran my aux tank filler up through the rear passenger fender well between the roll bar mount and the tailgate. I used an aluminum filler cap from a boat tank.
I thought so but I wasn't sure. Thanks for clearing that up. I know that this post was originally about the man a fre tank but I wonder if anyone has found the filler neck plumbing a little easier on any of the other tanks that people use?The filler on the rear aux tanks is on the passenger side, but the plumbing would not be easy.