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Poly Oil Gauge Line Starts Fire!

Discussion in 'Jeep Truck and FC Tech' started by 70cj5134f, Aug 21, 2020.

  1. Aug 23, 2020
    jeeper50

    jeeper50 jeeps 'till I die

    Spanish Fort. AL
    Joined:
    Dec 20, 2007
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    844
    Not sure I'd use that color of fingernail polish on Chugalug
     
  2. Aug 24, 2020
    CHUGALUG

    CHUGALUG Member

    Silverton, OR
    Joined:
    May 11, 2019
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    238
    Yes Cap-n Cray there is a 102 page project thread on the CJ-2A page The thread is about CHUG A LUG easy to find on the first page of the Projects thread page.

    A little project update on Chug A Lug
     
  3. Aug 24, 2020
    CHUGALUG

    CHUGALUG Member

    Silverton, OR
    Joined:
    May 11, 2019
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    238

    The finger nail polish is how I mark a fastener to show it is torqued and ready for the road. GM and other manufacturers did similar. The color is due to the Grand daughters having that color they were willing to give away.
     
    jeeper50 likes this.
  4. Aug 24, 2020
    jeeper50

    jeeper50 jeeps 'till I die

    Spanish Fort. AL
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    Dec 20, 2007
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    844
  5. Aug 24, 2020
    PeteL

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

    Hills of NH
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    Aug 3, 2003
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    We believe you...
     
    baldjosh and Snoops like this.
  6. Aug 24, 2020
    70cj5134f

    70cj5134f Member

    East Tn
    Joined:
    Aug 18, 2018
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    749
    A poster on another forum I belong to, a plumber, said he always pre crushed the Ferrell
    On the tubbing with an old fitting, before final assembly.
    I thought great idea!
    Mine didn't bite. But felt like to the point of striped threads.
    I'll never again use poly!
    Almost got it ready to start again. By weekend hope.
     
  7. Aug 24, 2020
    PeteL

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

    Hills of NH
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    I thought the ferrule went inside poly tube?
     
  8. Aug 24, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Southern...
    Joined:
    Nov 24, 2019
    Messages:
    1,765
    Yeah, that oil line kit is a little pricey, but that is really cheap insurance. The cost of that line is less than 5% of the cost of rebuilding a engine. Don't ask me how I know. I am ordering one for my jeep and I have a copper line on it now.
     
    colojeepguy and Glenn like this.
  9. Aug 25, 2020
    Admiral Cray

    Admiral Cray I want to do this again.. Staff Member

    Bainbridge...
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    Sep 21, 2009
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    204,347
    I have mechanical fuel pressure gauge on my A pillar on my truck. I run a braided SS tubing and don't run a isolator. I'm not sure what the difference would be between antifreeze or a diesel leak in the cab. Fuel comes all the way to the A pillar to the gauge. I do have an snubber to prevent full flow. Never had a problem in 19 years...
     
  10. Aug 25, 2020
    OnlyOneDR

    OnlyOneDR Member 2023 Sponsor

    R
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    Mar 4, 2020
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    Funny, I did something similar on my Nissan; an Autometer UltraLite Mechanical Oil Pressure gauge on my A-pillar with the Autometer supplied poly tubing and fittings. Installed in 2001 (19 years ago!) and still working today. I was nervous for a moment after installing and bleeding it just because if it failed numerous bad things could happen but it has proven reliable now for all these years.

    I think the PO realizes that the issue is with the cheap knock-off parts that came with the gauge. I think we have all been there in some way or another; my wife still questions my desire to get "the good stuff" for whatever the project may be. The cheap stuff never pays off.
     
  11. Sep 4, 2020
    70cj5134f

    70cj5134f Member

    East Tn
    Joined:
    Aug 18, 2018
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    749
    The Ferrell goes inside the nut, around the tube, then as tighting up it taper shrinks around th e tube, bites in and seals (most times). Fairly std practice w ith plumbing copper water line.
    Flare is much better cha nice of seal. But compression is easy for homeowners, (No flairf tool needed, or knowledge on how to use).
    I'm lucky, no bad damage on a China experiment . The gauges look and perform well, but the feed line and tiny wire is junk!
    My new bosch(from summit) gauge set looks almost identical to China set, but fittings look more better it was round 50$.
    For all u folks, under 60, u have no idea how well quality of parts used to be, in 70s, a nd 80s, Never got shabby parts.

    !
     
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  12. Sep 4, 2020
    PeteL

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

    Hills of NH
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    Aug 3, 2003
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    Yes. I wasn't being clear. Sorry.

    What I mean to say is that there can be a support tube used inside end of the poly, to prevent it collapsing or slipping. The ferrule is indeed the outer part.

    Copper tube needs no inner support.
     
    Lockman likes this.
  13. Sep 4, 2020
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
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    And you really missed out if you never went to a Jeep dealer that was around when our when our early CJ's were new. :) One here was around when the 2A came out, finally closed up when he died in the mid '80s.
     
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