I installed the Fuel Selector Valve $65 which will allow transfer from either tank and return to the original tank via electrical switching. The Valve faults open to the Main Tank so I can manage the fuel by using the Aux Tank 1st and always have a fail safe. I intend to replace the valve every 100 hrs. Not sure what the BTBF is for the valve but it has to be in the tens of thousands of hrs as you never have to replace these on Trucks but for $65 it is worth replacing every 100 hrs for piece of mind.
POLLAK MOTORIZED FUEL SELECTOR VALVE INSTALLATION SHEET IS-41 REV.D POLLAK, A DIVISION OF STONERIDGE 300 DAN ROAD, CANTON, MA 02021 PH. (781) 830-0340 FAX (781) 830-9570 www.pollakaftermarket.com This instruction sheet sets forth the guidelines required to install a motorized fuel selector valve for use in an automotive dual fuel tank system, applicable to part numbers 42-159, 42-151, 42-300, 42-302 and 42-308.
The Motorized Fuel Selector Valve is intended to operate in a dual fuel tank system with the following characteristics: -Vehicles with one main and one auxiliary fuel tank -Vehicles with or without fuel return lines -12 VDC electrical systems -Either electrical in-tank fuel pumps or mechanical on-engine fuel pumps -Gasoline or diesel engines -Ambient temperatures between –40F and +180F -Fuel systems not capable of fuel pressure in excess of 65psi -Systems that will not remain inactive for over 6 months
