CRF136N Posted June 18, 2009 Share Posted June 18, 2009 HO motor is going in TOMORROW, and I just realized the difference in the fuel lines as the renix has the front to rear setup, and the HO fuel rail has both supply/return lines next to each other in the front. the XJ fuel lines have a quick dissconnect at the frame, but my MJ doesn't. Once again, working with an '87 MJ shortbed and a '94 XJ donor. Does the '91-'92 MJ HO have the same fuel rail setup as the '94 XJ, so maybe I could get fuel lines for a 91-92, or has anyone else whos done the conversion encountred this and found a solution? Also, still awiting any info on the fuel pump; aside from the funky sender reading to the gauge, will the current renix pump run the HO motor ok, or do I need to pull it and change the pump? Also, anyone found a remedy for the sender reading? PLEASE, any info would be GREAT as I am hoping to have this thing running this weekend... Thanks! James Link to comment Share on other sites More sharing options...
mjeff87 Posted June 18, 2009 Share Posted June 18, 2009 I had a similar problem when I swapped a 4.0 in place of my 2.5. I just installed the 4.0 lines and cut the stock lines at the framerail and spliced them together with some double barbed fittings and double hose clamps. Hasn't leaked to date :D Jeff Link to comment Share on other sites More sharing options...
jpnjim Posted June 18, 2009 Share Posted June 18, 2009 I also spliced mine at the firewall. Kinda had no choice, since whoever originally pulled my 92 4.0L cut the rubber lines. Barbed fittings are probably alot better, but I just chopped the factory hard lines at the firewall, flared the ends a little (instead of just leaving them cut off straight), and used high pressure fuel line clamps (I think the only difference is they're designed not to cut into the hose). Link to comment Share on other sites More sharing options...
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