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Thread: Hot alternator help me.

  1. #1

    Default Hot alternator help me.

    Hi guys, a query, my truck was running well at 24 volts, but now the alternator is very hot, very hot, smells paint burned on the body by the temperature.
    Anyone know what causes such a high temperature?
    Thanks for the help.
    VIN : 13003 DATE : 6-67

  2. #2
    Join Date
    Feb 2004
    Location
    Silver Lake Sand Dunes MI
    Posts
    1,490

    Default

    Check to make sure the bearings are not going bad in it. Take the belt off and spin it by hand. If it's difficult to spin or doesn't roll smoothly, then the bearings are going bad which will cause them to get hot.
    Dave
    Delta Team Decals: http://www.deltateamdecals.com/

  3. #3
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,519

    Default

    That would be my first and second guess...
    If you have a working voltmeter, check the output and see if it is off weirdly...the output on the stock alternator is adjustable if it is way off somehow...
    Lord send your Holy Ghost into our hearts and make the desire of our hearts Your Will.

    Pro-choice, that's a LIE, babies don't choose to die!!

  4. #4

    Default

    we have reviewed everything and we did not find the problem
    VIN : 13003 DATE : 6-67

  5. #5
    Join Date
    Apr 2016
    Location
    Katy, TX
    Posts
    279

    Default

    Might simple be an insulation/winding/resistance issue. That would cause heat. You will need to replace the alternator.

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