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Flathead generator & voltage regulator question...

Discussion in 'The Hokey Ass Message Board' started by 3blapcam, Oct 6, 2012.

  1. 3blapcam
    Joined: Jul 15, 2004
    Posts: 334

    3blapcam
    Member
    from Austin, TX

    I did a fair amount of research & didn't see this covered. Can I use a 4 post regulator with my generator, or do I have to use a stock style 3 post? My set up is a 12V positive ground 8ba that I'm wiring up now.

    Thanks...

    3blap.
     
  2. flathead4d
    Joined: Oct 24, 2005
    Posts: 690

    flathead4d
    Member

    Check out the shoeboxford.com web site for more information on that upgrade.
     
  3. tommy
    Joined: Mar 3, 2001
    Posts: 14,742

    tommy
    Member

    I always use a 56 Ford regulator and wire it as a negative ground system. (never saw a 12V positive ground system) Don't over complicate it. Forget about positive ground and just wire it like a negative ground 56 Ford using parts intended for a 56 Ford. Not parts for Imperials or Impalas....56 Fords.

    Don't get intimidated just think 56 Ford. It will work and charge like a bitch if you make believe that you are working on a 56 Ford when you look it up in a book. It will need to be polarized like a 56 Ford which is different from how you polarize a GM car. Look it up.
     
  4. 3blapcam
    Joined: Jul 15, 2004
    Posts: 334

    3blapcam
    Member
    from Austin, TX

    Wow... that was a major brain fart. I meant Negative Ground, not positive ground.

    So I guess '56 Ford was the first year of 12V then? And, it sounds like you recommend going with the typical 3 post VR and stay away from the later 4 post?

    3blap.
     
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  5. tommy
    Joined: Mar 3, 2001
    Posts: 14,742

    tommy
    Member

    Yes VRs and their wiring need to match the generator that it was built for. 56-64 Ford will work just fine with Ford generators no matter what they are bolted to.

    [​IMG]
    This is my crude wiring diagram that works for me.
     
  6. 3blapcam
    Joined: Jul 15, 2004
    Posts: 334

    3blapcam
    Member
    from Austin, TX

    Ha! Tommy... Thanks for the diagram... I saw some of your previous posting activity & one of your posts had the exact same vintage pic that I was looking at in a '67 auto book on generator diagrams! It sounds like I just need to get a different VR & I'll be on my way!

    3blap.
     
  7. 3blapcam
    Joined: Jul 15, 2004
    Posts: 334

    3blapcam
    Member
    from Austin, TX

  8. tommy
    Joined: Mar 3, 2001
    Posts: 14,742

    tommy
    Member

    If its a flathead Ford, this may help.
     

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