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1970-71 Stewart Warner 2-1/16 Ammeter And Oil Pres Gauge Confusion

Discussion in 'Early Jeep Restoration and Research' started by Rubicloak, Mar 12, 2019.

  1. Jan 9, 2020
    Rubicloak

    Rubicloak Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Nevada
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    Jul 19, 2018
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    305
    Ok, going to bring this back up. It occurred to me that there must have been an obvious difference between the Renegade ammeter and oil gauge compared to a well optioned CJ5 with the gauges factory.
    My buddy has a well optioned non Renegade Mar 71 with his original dealer sheet that clearly states the options his jeep came with, gauges, T18, dash pad etc...... Here is my question to this find.

    Why does a heavily optioned Mar 71 CJ5 with the factory ammeter and oil pressure gauge NOT have the unicorn Renegade only 75 ohm resistor and additional wiring?

    Why is the 75ohm shunt so necessary for the Renegades but not on the optioned CJ5?? Or am I just an idiot and am missing something really simple??
     
    Last edited: Jan 9, 2020
  2. Jan 9, 2020
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
    Joined:
    Sep 22, 2017
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    431
    Having part numbers would be a start. I've often wondered why so many of the oem oil pressure gauges failed in the renegades.
     
  3. Jan 27, 2020
    Steve's 70-5

    Steve's 70-5 Active Member

    Louisville, Ky
    Joined:
    Nov 12, 2009
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    1,381
    Kaiser was getting ready to sell to AMC. Like most parts on the Jeeps at that time, Kaiser was just putting what they laying around on Jeeps.
     
  4. Feb 18, 2020
    Rubicloak

    Rubicloak Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Nevada
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    So after a year and a half of searching, I was looking through a bunch of NOS for the AMC years.. I spotted what appeared to be 2 NOS Oil pressure gauges hiding out in plain view in this collection. Can you spot them? I called him and said "I can't blow up the pic enough to see what the two gauges are above the rear view mirrors, but they appear to be for a Ren1 or 2 oil pressure gauges" He walked over and said "I am not sure what they were for but they are definitely oil pressure gauges and are 0-60 and there are two of them" I said I will take them both!!!

    FB_IMG_1581392136992.jpg

    Here are the two NOS Oil pressure gauges.
    379L N9 (Sept of 1969 born on date) and 379L Q5 (May of 1971 born on date)

    20200218_130217.jpg
    20200218_130252.jpg
     
    Last edited: Feb 18, 2020
  5. Feb 18, 2020
    Zoomer

    Zoomer eJeeper (walking)

    Minnesota
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    Sep 22, 2002
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    1,088
    Nice score!
     
  6. Feb 18, 2020
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Yes indeed! (y)
     
  7. Feb 18, 2020
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
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    8,513
    How did you find this seller ?
    Some interesting parts there.
     
  8. Mar 15, 2020
    AtomicYJ

    AtomicYJ Sponsor

    Rochester, WA
    Joined:
    May 12, 2015
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    75
    I’m pretty sure my Mar ‘71 Ren II does not have that resistor in the wiring. Definitley has the rest of the Ren II bits besides the tire carrier for the solid back panel. Someone posted that the later Ren IIs didn’t have that bit of wiring because AMC was setting up the harness for the ‘72s. I’m not sure how accurate this is.
     
  9. Mar 24, 2020
    mike starck

    mike starck Member

    salem,oregon
    Joined:
    Jun 22, 2006
    Messages:
    762
    My march '71 ren II does not have a extra resistor on firewall.Just a junction block and the wiring for the amp meter.Both gauges are working great no problems.
    So yes I agree there was a change. As far as someone saying they were using any parts on hand to complete some builds I for one never believed that story.
    More urban myths started here with no proof. mike
     
  10. Jul 11, 2021
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
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    Sep 22, 2017
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    431
    I found and picked up a nos w gauge for the Renegade II, seems it's 6v and maybe feeding it 12v was a killer.
     
  11. Jul 20, 2023
    Camshafters

    Camshafters REBEL

    Cathlamet,...
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    Jun 5, 2005
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    29
    I’m installing the original oil pressure gauge. I had a mechanical gauge in for the last 27 years. I forgot where the (2) purple wires go. (71 Renegade I). Does it ground to the dash? IMG_2184.jpeg IMG_2185.jpeg
     
  12. Jul 20, 2023
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    Bozeman, MT
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    5,593
    Typically, one has to come from 12V source and flow through the meter and go to the sending unit mounted in the block (which is where it grounds).....
     
  13. Jul 20, 2023
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
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    One comes from the ignition switch and one goes to the big underhood engine harness connector:
    [​IMG]
     
    Rubicloak likes this.
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