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Tech & Fab
Dual Tank Fuel Systems "Trucks/Motorhomes"
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<blockquote data-quote="Zoediak" data-source="post: 1492679" data-attributes="member: 17077"><p>yeah.. that looks similar to the pump i used on my old 74 CJ.. i used to have masive vapor lock issues when it got hot out. I ran dual tanks on my CJ (one under seat and one in back between rails).</p><p></p><p>what I did was switch from the mechanical to the electric pump.. i used two of those electric switches (similar to hose anyway)..</p><p></p><p>i set up relays from a switch on the dash to activate both fuel switches... one was feed from the tanks and the other i hooked up to a return line which was fed from the return line of the inline filter up by the carb...</p><p></p><p>the dash switch also changed the sender input for the gauge in the dash too.</p><p></p><p></p><p>that got rid of my vapor lock issue when it was all hot and out wheeling.</p><p></p><p>yeah.. the stupid fuel pump cost a bit.. but in the end it fixed my problem..</p><p></p><p></p><p></p><p></p><p>the same type of setup "might' work for you too... </p><p></p><p>i don't have any part numbers or anything, as it was years ago when i did it... and i no longer have that jeep anymore.. </p><p></p><p>but it worked out fairly simple...</p></blockquote><p></p>
[QUOTE="Zoediak, post: 1492679, member: 17077"] yeah.. that looks similar to the pump i used on my old 74 CJ.. i used to have masive vapor lock issues when it got hot out. I ran dual tanks on my CJ (one under seat and one in back between rails). what I did was switch from the mechanical to the electric pump.. i used two of those electric switches (similar to hose anyway).. i set up relays from a switch on the dash to activate both fuel switches... one was feed from the tanks and the other i hooked up to a return line which was fed from the return line of the inline filter up by the carb... the dash switch also changed the sender input for the gauge in the dash too. that got rid of my vapor lock issue when it was all hot and out wheeling. yeah.. the stupid fuel pump cost a bit.. but in the end it fixed my problem.. the same type of setup "might' work for you too... i don't have any part numbers or anything, as it was years ago when i did it... and i no longer have that jeep anymore.. but it worked out fairly simple... [/QUOTE]
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