alternator power with key off?

Electrical & Ignition

  1. 71 bird

    71 bird Well-Known Member

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    Hey guys, I finally got around to getting the car up and running (been a long time) we’ve made a lot of conversions on the car from a small block to big (383), auto to 833, changed the steering column to a 4 speed one and all that stuff. Using the original harness and hooking it up. My question is should the alternator have power to it all the time even with the key off is this normal?

    Car starts up and runs. We’re just working out all the electrical bugs and gremlins now on the full restoration.
    Gonna have more electrical questions in the future for sure lol

    thanks
     
  2. 493 Mike

    493 Mike FBBO Gold Member FBBO Gold Member

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    You will have 12 volts to the output terminal normally.
    Mike
     
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    • 19 69 GTX

      19 69 GTX Well-Known Member

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      The wire in back of alternator is hot all the time. The red charging wire
       
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      • 71 bird

        71 bird Well-Known Member

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        Thank you, couldn’t remember if it was supposed to have constant power or not.
         
      • Nacho-RT74

        Nacho-RT74 FBBO Gold Member FBBO Gold Member

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        the stud yes since is wired straight to the batt through the ammeter, the field prongs not since they are feed from ign key
         
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