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Alternator not charging the battery, help finding a replacement

Discussion in 'Intermediate CJ-5 and CJ-6 Tech' started by r_unda, Nov 24, 2015.

  1. Nov 24, 2015
    r_unda

    r_unda Member

    Corpus Christi,...
    Joined:
    Jul 16, 2012
    Messages:
    97
    My alternator is not charging the battery so I am looking for a replacement. I can't seem to find one with the exact connections as shown in the photos attached below. Any idea what brand or model that is. I don’t really want to redo wiring at the moment unless necessary plus I am not good at wiring.

    Thanks

    2015-11-24 10.23.34.jpg
    2015-11-24 10.24.28.jpg
     
  2. Nov 24, 2015
    timgr

    timgr Jeepin' Nerd Sponsor 2019 Sponsor

    Medford Mass USA
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    Aug 10, 2003
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  3. Nov 24, 2015
    aallison

    aallison 74 cj6, 76 cj5. Has anyone seen my screwdriver?

    Green Cove...
    Joined:
    Nov 24, 2006
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    1,764
    Around here you can have alternators rebuilt. I believe they cost a little more than one from NAPA but it's an alternative.
     
  4. Nov 24, 2015
    zila

    zila I throw poop

    Rock Springs,...
    Joined:
    Oct 6, 2003
    Messages:
    998
    Yes looks like a Motorola. Best bet is to upgrade to an internally regulated modern alt. I replaced OEM Motorola with a CS130. There are other conversions as well.


    What year and vehicle?
     
  5. Nov 24, 2015
    r_unda

    r_unda Member

    Corpus Christi,...
    Joined:
    Jul 16, 2012
    Messages:
    97
    Thanks for all the replies. I would look at the Motorola style alternator, I was also looking into the powermaster 8-46100 but I am not sure what wiring modification is require. This is for my 73 CJ5

    Thanks
     
  6. Nov 24, 2015
    autotech1984

    autotech1984 Member

    Tomball Tx.
    Joined:
    Oct 4, 2007
    Messages:
    180
    I have the Motorola alternator and regulator that came off my 72, it was working when I took it off about 6 years ago, but it is only rated at about 25 amps
     
  7. Nov 25, 2015
    r_unda

    r_unda Member

    Corpus Christi,...
    Joined:
    Jul 16, 2012
    Messages:
    97
    Decided to go with a NAPA remanufactured 55 Amp alternator, part number RAY 136021 along with a new voltage regulator. Everything should be plug and play.

    Thanks for the help.
     
  8. Nov 25, 2015
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
    Joined:
    Jan 15, 2011
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    1,737
    I did the cs144 swap, with all the aux i've put in the last year i needed something with high amp at idle.
     
  9. Nov 26, 2015
    68BuickV6

    68BuickV6 Well-Known Member

    Chino, CA.
    Joined:
    Mar 12, 2012
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    2,012

    Might want to consider putting the motorola alt and parts up on the forum if you dont want them (in a for sale ad). Some members have them rebuilt for restoration.
     
  10. Nov 28, 2015
    r_unda

    r_unda Member

    Corpus Christi,...
    Joined:
    Jul 16, 2012
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    Will do. I have few original engine parts I need to put up in the forum.
     
  11. Nov 30, 2015
    Rick Whitson

    Rick Whitson Detroit Area Sponsor 2019 Sponsor

    I live South of...
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    On my Jeep I used a Chevy one wire, and cut about an inch off the mounting lug to get the pulley to line up with the crank pulley it will work with the Motorola brackets. This will give you between 60 to 100 amps depending on which alternator you buy.
     
  12. Nov 30, 2015
    Rick Whitson

    Rick Whitson Detroit Area Sponsor 2019 Sponsor

    I live South of...
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    You will have to make a spacer for the arm to get the arm in the right alignment.
     
  13. Dec 6, 2015
    r_unda

    r_unda Member

    Corpus Christi,...
    Joined:
    Jul 16, 2012
    Messages:
    97
    Installed the NAPA remanufactured 55 Amp alternator, part number RAY 136021 without any issues. My voltmeter reads right at 14 volts. Everything was plug and play just like I wanted.

    Thanks for the help.
     

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