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Mystery Part Found In Oil Pan

Discussion in 'Early CJ5 and CJ6 Tech' started by Burndoubt, Jun 22, 2018.

  1. Jun 22, 2018
    Burndoubt

    Burndoubt Member

    Vermont
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    I pulled my F head pan to replace the gasket and i found this in the bottom nestled under the drain plug. At first I thought it was a magnet or something as it was stuck in place and covered in sludge. It is not magnetic, but it doesn't look like i am missing anything from above and the engine runs fine. Anyone recognize it?
    [​IMG]

    [​IMG]
     
    Burndoubt, Jun 22, 2018
    #1
  2. Jun 22, 2018
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Looks like a piece off of the fuel pump arm. Some of them had a piece that slides on the arm. Have you replaced your fuel pump?
     
    Glenn, Jun 22, 2018
    #2
  3. Jun 22, 2018
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Yup, fuel pump arm slider. Not all versions use this but pull you pump & see it it's missing.
     
    Howard Eisenhauer, Jun 22, 2018
    #3
  4. Jun 22, 2018
    baldjosh

    baldjosh Member

    pacific north west
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    super curious...i would think with that missing the pump arm wouldnt contact the eccentric and there would be no fuel pumped...no running engine...then again my engine is in parts so ive nothing to base that on:cry:
     
    baldjosh, Jun 22, 2018
    #4
  5. Jun 22, 2018
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I agree with the thinking, but I don't know what the result would be. Maybe still enough action to pump fuel?
     
    Glenn, Jun 22, 2018
    #5
  6. Jun 22, 2018
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    I found the same piece in my oil pan when I replaced the gasket last fall. But I'm not running the original pump I have a single action glass bowl pump.
     
    1957Willys, Jun 22, 2018
    #6
  7. Jun 22, 2018
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    I'm thinking it's from an old pump, having the slide fall off would at the very least result in low flow/pressure.
     
    Last edited: Jun 22, 2018
    Howard Eisenhauer, Jun 22, 2018
    #7
  8. Jun 22, 2018
    baldjosh

    baldjosh Member

    pacific north west
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    baldjosh, Jun 22, 2018
    #8
  9. Jun 22, 2018
    baldjosh

    baldjosh Member

    pacific north west
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    i guess if a pump failed in the past because that fell off and was replaced without knowing the the reason...i could see that
     
    baldjosh, Jun 22, 2018
    #9
  10. Jun 22, 2018
    Burndoubt

    Burndoubt Member

    Vermont
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    Thanks for all the info! I'm willing to bet this is correct. The previous owner said he replaced the fuel pump a while ago. I think i have the old one in a box. Ill check it out. Ill probably pull the current pump just to check to make sure everything is working correctly.
     
    Burndoubt, Jun 22, 2018
    #10
  11. Jun 22, 2018
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    It isn't all there, what held it on is missing. I do agree it looks different than the one you showed. I've got an old pump off of the 226 that is like the one you showed.
     
    Glenn, Jun 22, 2018
    #11
  12. Jun 22, 2018
    PeteL

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

    Hills of NH
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    When you do, don't lose the sliding pillow block!:shock:

    Some things are better left alone.
     
    PeteL, Jun 22, 2018
    #12
  13. Jun 23, 2018
    Burndoubt

    Burndoubt Member

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    I think we have the culprit. This is the old pump that came with my jeep when i bought it.

    [​IMG]

    [​IMG]
     
    Burndoubt, Jun 23, 2018
    #13
    Walt Couch, Glenn and Focker like this.
  14. Jun 23, 2018
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Bingo!
     
    Glenn, Jun 23, 2018
    #14
  15. Jun 23, 2018
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    One thing is for certain, the part that is left on the fuel pump wouldn't be very friendly to the cam lobe.
     
    Glenn, Jun 23, 2018
    #15
  16. Jun 23, 2018
    baldjosh

    baldjosh Member

    pacific north west
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    wow, i see it now, but really couldnt picture that being it from the first pics...im happy you got it sorted out!!!
     
    baldjosh, Jun 23, 2018
    #16
  17. Jun 24, 2018
    Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

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    You guys a good, good to have people like you to ask questions to. Thanks for being here. Rick
     
    Rick Whitson, Jun 24, 2018
    #17
    Burndoubt and Glenn like this.
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