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How To Determine If Fuel Pump Is Rebuildable?

Discussion in 'Early CJ5 and CJ6 Tech' started by Eric, May 16, 2022.

  1. May 17, 2022
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    Glenn, you don’t know your own strength.

    Airiating the fuel helps with improving the gallons per mile ratio.
     
    Glenn likes this.
  2. May 17, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    If it's lying on it's side just right the divider is horizontal. :)
     
    Desertdog48 likes this.
  3. May 17, 2022
    Eric

    Eric Member

    CA
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    Ouch! thanks for the amazing visual. Sorry it happened, though.
     
    Glenn likes this.
  4. May 17, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    :lol: You're right, I knew I should have used rubber wrenches. :) Seriously though, I didn't put a whole lot of effort into it and that piece just came right off. Look at how thin the casting is.
     
  5. May 17, 2022
    Fireball

    Fireball Well-Known Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Pullman, WA
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    Going back to the subject of the thread, I've determined that fuel pump is NOT rebuildable.
     
    Eric likes this.
  6. May 18, 2022
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Hills of NH
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    You'd be surprised what a little JB-WELD will do.
     
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  7. May 18, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    It's too late, I think I tossed it a few years ago. :D
     
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  8. May 18, 2022
    scoutpilot

    scoutpilot Member

    Asheboro, NC
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    Made in China...
     
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  9. May 18, 2022
    Eric

    Eric Member

    CA
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    Continuing the theme, if mine is a subcontracted one (has swaged valves), scoutpilot says the valves can be replaced with care. Would anyone like to offer advice on replacing the valves? I managed to remove and replace the old diaphram to test whether I can successfully replace a diaphragm, and I can. Obviously, the valves held in place by the plate are simple. Any tips on removing and replacing the swaged valves are welcome. Many thanks. (What I am finding is that vendors selling the kits seem willing to tell you that the kits is compatible with modern fuel. But they are not as revealing on the diaphragm alone. One vendor simply said fuel with ethanol shoujld not be used by people with vintage vehicles when I asked about the diaphragm, despite them saying their kit is compatible. Sheesh!)
     
  10. May 18, 2022
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    I've replaced them, just pop the old ones out out, stick in the new ones (right way up is a BIG help) & stake a few spots in the pump body around the holes with a center punch to hold them in place.
     
    Eric likes this.
  11. May 18, 2022
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Hills of NH
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    Just wondering how you learned that...

    :rofl:
     
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  12. May 18, 2022
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    Your first guess is probably correct :oops:
     
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  13. May 19, 2022
    amboynut

    amboynut Member

    Chelatchie, WA
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    By what means means?
     
  14. May 19, 2022
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    IIRC I pried them out with a small screwdriver.
     
  15. May 23, 2022
    Eric

    Eric Member

    CA
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    That's the best suggestion so far. Has anyone else developed a way to remove pressed in valves without damaging the pump body? (Kit is on the way so I want to be ready when it arrives.)
     
  16. May 23, 2022
    Eric

    Eric Member

    CA
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    I think I mis-used the verb to swage. Apologies... my ignorance is showing.
     
  17. May 24, 2022
    Labeeman

    Labeeman Member

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    Feb 24, 2016
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    I sent mine to a rebuilder in California and they did a great job. My Jeep is a 63 CJ5 with a 4 cyl. When I find the paperwork I’ll post it. I think I put it in my build thread.
     
    Eric likes this.
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