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MD Juan Tub Kit 1969 CJ5 4CLY (7/2016)

Discussion in 'Builds and Fabricators Forum' started by Wirework, Jul 10, 2016.

  1. Mar 14, 2017
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    Have you tried looking for a NOS Stewart Warner unit on ebay? They come up quite often.

    H.
     
  2. Mar 14, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    !!

    No, I have not... I had no Idea they still existed.

    I'll start looking imediately.

    Thanks.
     
  3. Mar 14, 2017
    Twin2

    Twin2 not him 2021 Sponsor 2020 Sponsor

    Virginia Beach, VA
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  4. Mar 14, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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  5. Mar 14, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    Has anyone ever tried to move a heating filament from one of these aftermarket fuel gages onto a burned out original fuel gage?

    Hmmmm... I'll need to shrink my fingers...

    I appreciate there are calibration questions to be investigated.
     
  6. Mar 14, 2017
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    Shelf rash only I think.

    H.
     
  7. Mar 14, 2017
    sterlclan

    sterlclan Member 2021 Sponsor

    exploring the...
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    I've gotten four of them from that seller all were dusty but unused. He used to be in Vietnam guessing leftover from the military operations there.
     
  8. Mar 15, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    That is great information. The vendor has offered to replace the latest bad one. I'll check to see if I can just get a refund and buy the NOS one. Thanks!
     
  9. Mar 15, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    We did a compression test today (4x @ 125#) and then started chasing down the low oil pressure issue.

    Unfortunately, when taking it off, we ruined a perfectly good and new oil filter (NAPA 1050 with the right internal restriction), but we proved the problem was not the oil filter.

    Next, we pulled the oil relief valve spring and ball. I caught Joe under the jeep; he was protecting himself from oil with a clear tub. :)

    [​IMG]

    Nothing looked broken. The ball was slightly marred; enough to feel it with a fingernail. We cleaned it and put a washer under the spring and put it back in. We started the engine and nada... no change, no pressure.

    So then we put #1 at TDC and pulled the oil pump. It looked generally ok (nothing broken), but there was some very light scoring on the end cover plate. With the cover plate off we could get a good look at the relief valve seat, and also test the relief valve with compressed air.

    Joe's air blow off tool has a tapered rubber tip exactly the right size to seal the relief valve high side port. We put a squirt of oil in the port and started at about 20 psig... leak, 15 psig... leak, etc, etc down to the lowest setting Joe could get on his regulator... leak. Crap... the oil relief valve is shot.

    We took a closer look at the ball and seat. The seat looked a bit strange. It had multiple seat marks... like overlapping crescent shaped impressions.

    We decided to risk trying to use the ball to create a bit better seat inside the relief valve in the pump cover. We inserted the ball and then gave it a few good whacks with a flat punch and hammer. It seemed to blend some of the seat crescents a bit, but it made no difference in the air pressure test.

    A quick internet search hasn't revealed any oil pressure relief valve rebuild kits or any rebuild kits for our engine model F134 oil pump (with the ball relief valve), so I guess a new pump is the only practical solution.

    [​IMG]

    Has anyone ever tried to reface the oil relief valve seat?

    Thanks.

    EDIT: 'Just bought a new M53 Melling(?) Oil Pump... $89, ebay.
     
    Last edited: Nov 2, 2021
  10. Mar 15, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    I noticed today a strong gasoline smell in the vicinity of the gas tank, but found no evidence of a leak. Is that common? I get it that the tank has to breathe through the gas cap... but I wasn't expecting to have to smell it all the time at the driver's seat.
     
  11. Mar 15, 2017
    mortten

    mortten I can’t put my finger on it 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Peninsula, Ohio
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    Gas smell is normal with a vented cap and so close to where you're working.
     
  12. Mar 15, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    I've heard that the smell of gasoline is in the top ten for a majority of women... I hope my wife likes it. :)
     
  13. Mar 15, 2017
    Steve's 70-5

    Steve's 70-5 Active Member 2020 Sponsor

    Louisville, Ky
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    My girlfriend loves it
     
  14. Mar 16, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    I never thought of my Jeep as a "chick magnet" before ! :D
     
  15. Mar 16, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    416
    I already bought a replacement oil pump, but I see Home Depot/Lowes sell a tool to reface installed water valve seats... I wonder it that might work on a Jeep's oil pressure relief valve.... hmmmm.
     
  16. Mar 16, 2017
    Twin2

    Twin2 not him 2021 Sponsor 2020 Sponsor

    Virginia Beach, VA
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    "Silly Boys Girls Drive Jeeps Too"
     
  17. Mar 16, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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  18. Mar 16, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    I talked again to Oconeeoffroad yesterday, and today they shipped me a replacement fuel gage to make up for the bad one I got from them on Monday. (Actually I learned that the gages ship directly from Omix-Ada, Atlanta?? GA). So. if you get a bad one it is likely a source issue.

    The point is, Oconeeoffroad.com and Omix-Ada made good on their sale.
     
  19. Mar 17, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
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    [​IMG]

    In keeping with the holiday!
    St. Patrick is the patron saint of engineers... he is credited with creating the first worm drive... (he drove all the snakes out of Ireland). :D:lol::rofl:

    EDIT: Joe says no more jokes or we'll get kicked off earlycj5.com.
     
    Last edited: Nov 2, 2021
  20. Mar 19, 2017
    Wirework

    Wirework Navy_Jim

    Pittsburgh, PA
    Joined:
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    The third Omix-Ada fuel gage arrived yesterday... strike three... it is worse than the previous two.

    [​IMG]

    This was after asking that they inspect it before shipping it. I'm curious to see how far they will go to resolve this... I'm going to keep after them until they throw in the towel... or I do.
     
    Last edited: Nov 2, 2021
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