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Swapped battery cables.... Positive to negative and vice versa


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Posted (edited)

just went to unhook battery prior to removing (or attempting to remove) the hi/lo headlight switch, and I see a shiny new battery dated 1/15 (I got the car 6 weeks ago) with the "+" cable attached to the generator and the "-" cable attached to the transmission....  Now, I'm wondering if a PO replaced the battery and hooked it up incorrectly by accident OR if the car had to be set up to run this way.

 

Do I need to do anything about this...?  Should I be worried?

 

This is my 1st "positive ground" vehicle....

Edited by thebeebe5
Posted

If it hasn't been tampered with it should be positive ground.  If somePO messed with it no telling.Can you call the PO and ask?  May be if he had the battery installed at a shop the installer didn't know the difference.  One quick check is to turn the key to the run position and see which way the ammeter needle moves.   If it goes slightly to the charge side the battery is likely in reversed.  If it goes to the discharge side then is OK and the car has been switched to neg ground.  

  • Like 1
Posted

If it hasn't been tampered with it should be positive ground.  If somePO messed with it no telling.Can you call the PO and ask?  May be if he had the battery installed at a shop the installer didn't know the difference.  One quick check is to turn the key to the run position and see which way the ammeter needle moves.   If it goes slightly to the charge side the battery is likely in reversed.  If it goes to the discharge side then is OK and the car has been switched to neg ground.  

Definitely goes to the Pos (+) side when key is turned on.  So that makes sense.  Can I simply swap the battery cables?  Any ill-effects I need to be concerned about?  Like Voltage regulator being ruined or anything...?  Glad I opened it up today.  I need to fab a battery hold down anyways....  There isn't one in place now.

 

:-/

Posted

Swap the cables, try the ignition on test again, should go to discharge the same distance.  Start the car and see if you get a swing to charging.  If so, likely no foul no harm.

  • Like 1

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