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The Official "What The Heck Is This?" Thread

Discussion in 'Early CJ-5 and CJ-6 Tech' started by Focker, Feb 19, 2016.

  1. May 31, 2019
    maurywhurt

    maurywhurt Member Sponsor 2019 Sponsor

    Western North...
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    Yeah I have that same VR on my fender. This Motorola regulator was used for the V6 up through the early 1967 model year (when it was changed to a different model and moved to the firewall). The mounting holes for the VR pictured are in the side of the fender, directly behind the passenger side front wheel, and across from the alternator. The holes I'm talking about on my fender are in the rear of the wheel well, i.e. in the back of the fender, directly below the battery in that second view you sent.
     
    Last edited: May 31, 2019
  2. May 31, 2019
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member Sponsor

    Denver, CO
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    Maury...I don't know what the holes are for (Howard may very well be correct) but I have them on my 70 v6. Interesting comment in the Motorola VR....as mine had the fender mounted VR even though it's a 1970. Of course it could have been changed at some point.
     
  3. May 31, 2019
    maurywhurt

    maurywhurt Member Sponsor 2019 Sponsor

    Western North...
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    The only reason I'm aware of the VR change is that I have a '67 V6 CJ-5 manufactured in August 1966. My brother in law also has a '67 V6, but his was manufactured a few months later, in Nov. '66. While mine has the earlier type of fender-mounted Motorola VR, his has the later type and is firewall mounted (near the ballast resistor). Both Jeeps have the original fenders as far as we can tell, but his passenger side fender doesn't have the VR mounting holes.

    My guess is that Jeep engineers moved the VR to the firewall due to the fender-mounted location being fairly close to the ground, where it was more susceptible to damage from mud or water. The later Motorola R2K1 VR could also be installed on the fender in place of the earlier type, though only two of its three mounting holes would align with the holes in the fender.

    Earlier type V6 fender-mounted Motorola TVR12W14 voltage regulator (used 1966 through early 1967 model years):

    [​IMG]


    Later type V6 firewall-mounted Motorola R2K1 voltage regulator (used from early 1967 model year through ??):

    [​IMG]
     
    Last edited: May 31, 2019
  4. May 31, 2019
    Lockman

    Lockman Since 1975..... It's not my Fault Sponsor 2019 Sponsor

    White City, NY 14617
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    By George, I think you identified it for Him...... Good one, Bfc !
     
  5. May 31, 2019
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member Sponsor

    Denver, CO
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    Interesting as this is definitely the one that was on my 1970 cj5 when I got it...guess the switch might have occurred at some later point when the original one needed replaced?
     
  6. May 31, 2019
    maurywhurt

    maurywhurt Member Sponsor 2019 Sponsor

    Western North...
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    Was the early type voltage regulator in your 1970 mounted on the firewall, or on the fender?

    If it was mounted on the firewall, that's not too surprising. These two types of VR's were functionally interchangeable, and both shared the same 3-prong plug. They had overlapping mounting hole patterns, with two of the holes having the same spacing, but the third hole being different. Both types of VR's were probably still available during the 1970's.

    However, if your early type VR was mounted on the fender of a 1970, that would definitely be surprising!
     
    Last edited: May 31, 2019
  7. Jun 1, 2019
    maurywhurt

    maurywhurt Member Sponsor 2019 Sponsor

    Western North...
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    My '67's fender-mounted early type voltage regulator:

    [​IMG]


    My brother in law's '67 with the later type voltage regulator mounted on the firewall:

    [​IMG]
     
    FinoCJ likes this.
  8. Jun 1, 2019
    radshooter

    radshooter Member

    Northern Arizona
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    I had something like that on the top of the passenger fenderwell of my '63. None of the wires were connected (cut, actually) but everything ran fine. It was completely wrapped with electrical tape (waterproofing?) and when I unwrapped it to see what it was it completely fell apart. I ended up throwing it away.
     
  9. Jun 1, 2019
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor 2019 Sponsor

    cordele, Ga.
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    Motorola reg for my 66 TUX is mounted there on the fender.
     
    Lockman likes this.
  10. Jun 1, 2019
    ojgrsoi

    ojgrsoi Retired. Sponsor 2019 Sponsor

    Weatherford, TX
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    From the factory my 65 had an oak strip, about 1 x 1 1/2” painted body color. It had two screws that came up from the bottom.

    When I installed a new tank I went with the rubber bungee cords. IDK if the board was to keep it level or ? I removed it because it looked like a place that would remain wet and cause rust. :shrug:
     
  11. Jun 1, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

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    I used 3/8" umhw plastic, seems to have positioned the fuel filler perfectly in the side panel.
     
  12. Jun 6, 2019
    Jeremy Knakmuhs

    Jeremy Knakmuhs Jknakmuhs

    Parker, CO
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    Awesome, always wondered what this part was. Mine was painted over at some point and can't read the motorola name anymore. It is located on the inside of the fender on my 68' though as well.
     
  13. Jun 6, 2019
    maurywhurt

    maurywhurt Member Sponsor 2019 Sponsor

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    Does your firewall have mounting holes for a voltage regulator where this one's located?:

    [​IMG]
     
  14. Jun 6, 2019
    Jeremy Knakmuhs

    Jeremy Knakmuhs Jknakmuhs

    Parker, CO
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    not sure, I will have to check.
     
  15. Jun 6, 2019
    mike starck

    mike starck Member Sponsor 2019 Sponsor

    salem,oregon
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    I have a couple pics of the regulator on my 1971 V-6 cj5 and the lack of holes in firewall.1969 also had fender mount VR. Nothing is ever for sure on these jeeps. DSC03520.JPG DSC03519.JPG
     
  16. Jun 7, 2019
    jeepstar

    jeepstar Sponsor Sponsor

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    truer words were never spoken.
     
    mike starck likes this.
  17. Jun 10, 2019
    maurywhurt

    maurywhurt Member Sponsor 2019 Sponsor

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    That is fascinating!

    We'll probably never know why the VR location was moved from the fender to the firewall, and then back to the fender - but that's evidently exactly what happened.
     
  18. Jun 13, 2019 at 2:08 PM
    jjdebarros

    jjdebarros Sponsor Sponsor

    Spokane, WA
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    What's this tab on the base of the rollbar for, and can I remove it without regretting it later? IMG_1453.JPG
     
  19. Jun 13, 2019 at 2:16 PM
    Keys5a

    Keys5a Sponsor Sponsor

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    I'm pretty sure that extra tab was added by a previous owner, in other words, not OEM stock.
    -Donny
     
  20. Jun 13, 2019 at 2:18 PM
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    Does it say anything about removal "Under Penalty of Law" on it? :D
     
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