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Old 10-06-2012, 07:53 AM   #1
3blapcam
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Default Flathead generator & voltage regulator question...

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...

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Old 10-06-2012, 08:05 AM   #2
flathead4d
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Default Re: Flathead generator & voltage regulator question...

Check out the shoeboxford.com web site for more information on that upgrade.
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Old 10-06-2012, 08:49 AM   #3
tommy
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Default Re: Flathead generator & voltage regulator question...

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.
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Old 10-06-2012, 05:49 PM   #4
3blapcam
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Default Re: Flathead generator & voltage regulator question...

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?

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Old 10-06-2012, 06:11 PM   #5
tommy
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Default Re: Flathead generator & voltage regulator question...

Quote:
Originally Posted by 3blapcam View Post
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.
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.


This is my crude wiring diagram that works for me.
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Old 10-06-2012, 11:16 PM   #6
3blapcam
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Default Re: Flathead generator & voltage regulator question...

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!

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Old 10-06-2012, 11:31 PM   #7
3blapcam
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Default Re: Flathead generator & voltage regulator question...

This post actually:

http://www.jalopyjournal.com/forum/s...nerator+wiring

It's a great diagram...

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Old 10-07-2012, 05:21 AM   #8
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Default Re: Flathead generator & voltage regulator question...

If its a flathead Ford, this may help.
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