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Starting problem

Discussion in 'Early CJ5 and CJ6 Tech' started by dohc281, Mar 27, 2007.

  1. Mar 27, 2007
    dohc281

    dohc281 It is what it is.

    Laurel Springs, N.J.
    Joined:
    Dec 30, 2004
    Messages:
    605
    My :hurrican: doesn't want to start. My neighbor who is a auto mechanic by trade says I should move the electric fuel pump which the PO installed on the inside fender well on the drivers side should be moved to the frame under the fuel tank. He says this will work better because pushing the gas to the carb will be easier than pulling the gas from the tank. Ever since I've owned the vehicle the in line fuel filter has never been full even when the engine was running. The pump would always being running trying to fill the fuel line with gas. What do you guys think?
     
    Last edited: Mar 27, 2007
    dohc281, Mar 27, 2007
    #1
  2. Mar 27, 2007
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,362
    :iagree: Fuel pumps are designed to pump fuel not push it. That is why you see alot of pumps in the fuel tank.
     
    scott milliner, Mar 27, 2007
    #2
  3. Mar 27, 2007
    wheelie

    wheelie beeg dummy 2024 Sponsor 2023 Sponsor

    York, PA
    Joined:
    Mar 6, 2004
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    4,512
    Yup, electric pumps belong close to the tank. Just put one on the truck as a temporary fix and the instructions said close to the tank and higher than where the fuel line exits tank. I suppose the last part could be a problem with underseat tanks.
     
    wheelie, Mar 27, 2007
    #3
  4. Mar 28, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Right on the frame under the drivers seat typically works well from what I've seen for most electric fuel pumps and an underseat tank.
     
    sparky, Mar 28, 2007
    #4
  5. Mar 28, 2007
    dohc281

    dohc281 It is what it is.

    Laurel Springs, N.J.
    Joined:
    Dec 30, 2004
    Messages:
    605
    The thing that concerns me is if the fuel pump is under the Jeep it will be open to damage if I go off road.
     
    dohc281, Mar 28, 2007
    #5
  6. Mar 28, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Sep 20, 2002
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    Not real likely IMO. Frame is a C-channel after all.
     
    sparky, Mar 28, 2007
    #6
  7. Mar 28, 2007
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
    Joined:
    Nov 27, 2006
    Messages:
    2,793
    If you mount it under the hood on the fender well, the engine compartment heat will get to it, and on hot days - 90ยบ or so the pump will quit on you cause of vapor lock or something, and then you are stuck on the side of the road for 15 minutes or so waiting for it to cool down. I found this out because I mounted an electric on the passenger side fender well of my MG Midget. That position was close to both the carburetor and the fuse block for power.

    Just mount it inside the C-channel of the frame under the seat and tank. if you are worried about debris then make a tin box to go around it.:)

    My see-thru fuel filter never fills up either, and that is with a mechanical pump on the block. :coffee:

    Oh, yeah. Put an inline filter in between the pump and tank, and a see-thru in the engine compartment between the pump and carb.R)
     
    1960willyscj5, Mar 28, 2007
    #7
  8. Mar 28, 2007
    dohc281

    dohc281 It is what it is.

    Laurel Springs, N.J.
    Joined:
    Dec 30, 2004
    Messages:
    605
    Damn, now I feel really stupid.:oops: Thanks for all the good responses. My 73 MGB had an electric fuel pump mounted buy the rear wheel on the frame on the passenger side. It all makes sense to me now.
     
    dohc281, Mar 28, 2007
    #8
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