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F134 Oil Pressure Issues Again

Discussion in 'Early CJ5 and CJ6 Tech' started by 1957Willys, Aug 26, 2017.

  1. Aug 31, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    It's a old reman still in the box from the Dura-built engine company. The box says the golden heart line in big letters across the top of the box. The housing of the pump is aluminum.
     
  2. Aug 31, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Personally I wouldn't use an oil pump with an aluminum housing.
     
  3. Aug 31, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    I did a little research on them and the aluminum pumps are late model F134s.
     
  4. Aug 31, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    That's interesting, I wouldn't have ever guessed that.
     
  5. Aug 31, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    I'll have to look in my parts manuals both civilian and military and see which one they came on.
     
  6. Aug 31, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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  7. Aug 31, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Definitely cool factor there, can't deny that. You going to use it?
     
  8. Aug 31, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    Yeah why not I think I can trust it more than a Omix-Ada pump. I'll have to post more pictures of the box the pump is supposed to have been tested already.
     
  9. Aug 31, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I totally agree with that.
     
  10. Sep 1, 2017
    PeteL

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

    Hills of NH
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    Tip of the Day - check the internals of the pressure relief.

    I once used a NOS 'packed in cosmoline' pump on a M-715.

    The relief valve was stuck shut, and it blew the oil filter right off the engine.
    Did a nice job undercoating the engine compartment - and the wall of my shop, too.
     
  11. Sep 1, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    The oil pressure relief valve was stuck on this pump. I found out when I mashed the accelerator and the oil pressure gauge pegged out at 80psi. I was able to free it up by tapping on the oil pump housing so now it has 45psi when the accelerator is fully mashed to the floor.
     
  12. Sep 1, 2017
    PeteL

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

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    Glad you figgered it out.
     
  13. Sep 1, 2017
    1957Willys

    1957Willys Member

    Birmingham, Alabama
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    Thanks it has 13psi at idle when it is at 190 degrees. I can live with that because it's alot better than 3-4psi at idle.
     
    mayday likes this.
  14. Sep 2, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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  15. Sep 3, 2017
    PeteL

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

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    Nothing wrong with that.:)
     
    59cj5 likes this.
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