Electrical issue, High voltage

Discussion in 'Electrical Systems' started by wiseryder, Oct 21, 2017.

  1. wiseryder

    wiseryder Veteran Member Lifetime Gold Member

    1,894
    10
    Sep 11, 2004
    belding,mi USA
    This battery has sealed tops, cant open it up that I can see
    I hope it didnt fry it,
    Its going to sleep in a couple weeks so not sure how to handle it right now
     
  2. Gary S

    Gary S Administrator Lifetime Gold Member

    20,637
    181
    Apr 14, 1999
    Bismarck, North Dakota
    That alternator likely needs only a new regulator. They are reasonably cheap. They go for about $20 at the auto parts stores, and you might be able to get a complete rebuild kit for just a little more. Often, the brushes are about gone too.
    These old Delco alternators are very simple to disassemble and repair.
     
  3. wiseryder

    wiseryder Veteran Member Lifetime Gold Member

    1,894
    10
    Sep 11, 2004
    belding,mi USA
    Im sure your right Gary
    Its not a GM alt tho.
    Cant find receipt for it
    Heres a pic
    Maybe it is a GM, im old and honestly cant remember where I got it
     

    Attached Files:

    Last edited: Oct 21, 2017
  4. SRGN

    SRGN Veteran Member

    186
    49
    Feb 20, 2009
    Central NJ
    Looks like a CS130 GM alternator.
     
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  5. Gary S

    Gary S Administrator Lifetime Gold Member

    20,637
    181
    Apr 14, 1999
    Bismarck, North Dakota
    I'd agree. It looks like the CS series alternator. In that case you may not try to repair it as the CS alternators are soldered together inside. If you are uncomfortable doing that kind of work, take it to someone who is.
    The old SI alternators were simply bolted together so repair on them is much easier.
     
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  6. wiseryder

    wiseryder Veteran Member Lifetime Gold Member

    1,894
    10
    Sep 11, 2004
    belding,mi USA
    Thanks a bunch guys ,
    I'll take it to a shop
    Not comfortable with that
    Run this one i got in it now
    Hope its enough, case say 55 v
    Lol
     
  7. tom3

    tom3 Veteran Member

    10,632
    41
    Aug 1, 1999
    ohio
    Could be the battery. Gets weak or some internal problem and the alternator sees low resistance. The powerful alternators these days don't like that deal and voltage goes whack. Can toast it pretty quick sometimes too. That would explain the heat I think too. Maybe could be a dirty connection too but that would probably cause the starter to not work right if at the battery. Keep us posted.
     
  8. wiseryder

    wiseryder Veteran Member Lifetime Gold Member

    1,894
    10
    Sep 11, 2004
    belding,mi USA
    Thanks Tom, all conections are clean n tight.
    This car is pretty tight
    Verlander going to a WS
     
  9. ol' grouch

    ol' grouch Veteran Member

    1,016
    126
    Jul 4, 2013
    Evansville, In.

    I forgot about maintenance free batteries. Unhook the cables and check your at rest voltage. It may be below 12 volts and that's a sign of a weak cell. If you're going to store the car soon, make a thin paste of baking soda and water and smear it around the battery. If you were over charging the battery, you probably have hydrochloric gas venting onto the metal. This is why you always see rusted metal around batteries. Be sure to get some under where the battery sits too. It will neutralize the PH and prevent any future damage to the paint and metal. Let it sit a little bit and just rinse off with water.
     
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  10. wiseryder

    wiseryder Veteran Member Lifetime Gold Member

    1,894
    10
    Sep 11, 2004
    belding,mi USA
    I will do just that, Thanks everybody, I will update this when I see the results
     

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