ezzzzzzz Posted April 12, 2005 Share Posted April 12, 2005 I've got two electric 4psi pumps from carbed RX-7's. Since I didn't pull these pumps I don't know which fitting is which. One comes directly out of the end of the pump body and the other is perpendicular to the body. Also, which wire is positive? One wire is black (presumed to be ground?) and the other is black with a white stripe (positive?). Can someone with this swap elaborate? Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted April 13, 2005 Share Posted April 13, 2005 I ran one of these in a carbed 240z at one time. I can not remember off hand which one is which, but determined the wiring and pump flow direction by trial and error. I connected a couple of longer wires to the fuel pump leads, hooked hoses to the pump ends, touched the wires to + and - terminals on a battery, and transferred gas from one gas jug to another until I was satisfied which direction I should hook everything up... Quote Link to comment Share on other sites More sharing options...
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