Confusing voltage reg/alternator wiring

Discussion in 'Technical' started by hbmmusic, May 30, 2011.

  1. hbmmusic

    hbmmusic Member

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    When I replaced my regulator and the pigtail/wire set that comes with it, I was given a wire set with an extra white (I think stator?) wire that I currently have just hanging, though taped to the other white wire (see picture). Is there anything I can do with this wire, other than leave it hanging? Is it bad to leave it un-connected to anything?
     

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  2. cactusgrabber

    cactusgrabber Member

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    What year is your car?

    The "S" Stator wire on the voltage regulator, was usually White with a black stripe, and went to two places on some years:

    1. The Stator (Y-stator common) on alternator.
    2. The fusible link wire feeding the electric choke.

    That extra wire might go to the factory electric choke, on your ignition system/carburetor, depending on the year of your car. The electric choke started in 74 on the Mavericks.

    The electric chokes are essentially, a bi-metallic strip, that is heated up by the current from the ignition circuit, as opposed to the mechanical ones that were heated by air or water. It is supposed to automatically time the opening of the carburetor choke, to correspond with the time it takes the engine to warm up.
    I hope this helps.
     
  3. hbmmusic

    hbmmusic Member

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    Well, mine's a 70 (not the early model), so the choke on the carb (Carter YF) doesn't need to use that wire, I suppose. In this case, what is there to do with it? Does it drain the battery at all, or is it just a kind of electrical dead-end?
     
  4. cactusgrabber

    cactusgrabber Member

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    If you don't use it, then definately tape it off, or put a wire-nut, or a crimp-cap on it, so that it doesn't short out your ignition system.
     
  5. hbmmusic

    hbmmusic Member

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    Right on. Thank you!
     
  6. darren

    darren Member

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    I'd heat shrink the open end so corrosion doesnt wick its way down the wire into the connector.
     
  7. injectedmav

    injectedmav Member

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    you beat me to it! I use the adhesive lined heat shrink tubing for that, works great!
     

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