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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.

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  1. mickeykelley

    mickeykelley Well-Known Member

    Glenn, you don’t know your own strength.

    Airiating the fuel helps with improving the gallons per mile ratio.
     
    mickeykelley, May 17, 2022
    #21
    Glenn likes this.
  2. Glenn

    Glenn Kinda grumpy old man Staff Member

    If it's lying on it's side just right the divider is horizontal. :)
     
    Glenn, May 17, 2022
    #22
    Desertdog48 likes this.
  3. Eric

    Eric Member

    Ouch! thanks for the amazing visual. Sorry it happened, though.
     
    Eric, May 17, 2022
    #23
    Glenn likes this.
  4. Glenn

    Glenn Kinda grumpy old man Staff Member

    :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.
     
    Glenn, May 17, 2022
    #24
  5. Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Going back to the subject of the thread, I've determined that fuel pump is NOT rebuildable.
     
    Fireball, May 17, 2022
    #25
    Eric likes this.
  6. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    You'd be surprised what a little JB-WELD will do.
     
    PeteL, May 18, 2022
    #26
    Fireball likes this.
  7. Glenn

    Glenn Kinda grumpy old man Staff Member

    It's too late, I think I tossed it a few years ago. :D
     
    Glenn, May 18, 2022
    #27
    Ol Fogie likes this.
  8. scoutpilot

    scoutpilot Member

    Made in China...
     
    scoutpilot, May 18, 2022
    #28
    Ol Fogie and Glenn like this.
  9. Eric

    Eric Member

    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!)
     
    Eric, May 18, 2022
    #29
  10. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    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.
     
    Howard Eisenhauer, May 18, 2022
    #30
    Eric likes this.
  11. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Just wondering how you learned that...

    :rofl:
     
    PeteL, May 18, 2022
    #31
    Desertdog48 and Eric like this.
  12. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Your first guess is probably correct :oops:
     
    Howard Eisenhauer, May 18, 2022
    #32
    Eric and Glenn like this.
  13. amboynut

    amboynut Member

    By what means means?
     
    amboynut, May 19, 2022
    #33
  14. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    IIRC I pried them out with a small screwdriver.
     
    Howard Eisenhauer, May 19, 2022
    #34
  15. Eric

    Eric Member

    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.)
     
    Eric, May 23, 2022
    #35
  16. Eric

    Eric Member

    I think I mis-used the verb to swage. Apologies... my ignorance is showing.
     
    Eric, May 23, 2022
    #36
  17. Labeeman

    Labeeman Member

    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.
     
    Labeeman, May 24, 2022
    #37
    DavidWymore and Eric like this.
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