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1 wire vs. 3 wire alternator

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david

05-01-2003 09:27:35




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I'm ready to do a 12 volt conversion on my front mount dist. 8N. I find listings for 1 wire alternators and 3 wire alternators. There seems to be a bias toward the 3 wire setup. Why? Thanks




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JimNC

05-01-2003 18:07:23




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 Re: 1 wire vs. 3 wire alternator in reply to david, 05-01-2003 09:27:35  
I put a Delco CS-130 alt on My 8N and it starts charging a few seconds after the engine starts. Every once in awhile I might have to bump it up to 600 rpms. I don't think that the battery will be discharged that much even if someone were to let the Ngine warm up for 10 minutes or so then get on and go play. What ya'll think?

Jim



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Dell (WA)

05-01-2003 20:18:35




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 Re: Re: 1 wire vs. 3 wire alternator in reply to JimNC, 05-01-2003 18:07:23  
Jim..... ..what do I think? I think that there is a differance between the commonly used and inexpensive Delco 10-SI alternator and your Delco CS-130. And ANY COMPENTANT auto-electrician can make any alternator work in a 12 volt conversion, it's not that hard or exoterric. Unfortunately, so many 12 volt convertees are electrically challenged and are converting because Billy Bob Joe down at the local spittin-n-whittlin wattern' hole sez "converter to 12 volts, yes sirree, thang to do"..... ...respectfully, Dell

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JimNC

05-01-2003 21:05:02




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 Re: Re: Re: 1 wire vs. 3 wire alternator in reply to Dell (WA), 05-01-2003 20:18:35  
My 8N was 12v when I got it from Dad. And it did have the 10-SI on it but My shelter developed a leak and guess where most of the water ended up. Yup, right in the alt. Rusted to death it was. I had the CS-130 laying round so I put it on. I think sometimes people make a conversion harder than it is. Nothing wrong with 6v, its just us younguns ain't used to it. Like you say if its kept "clean, bright and tight" with a dab of dielectric grease it will give no problems. If mine still had the 6v genny on it I would be running 6v.

Jimbob, from the wattern' hole :>)

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Bob Semrau

05-01-2003 10:19:55




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 Re: 1 wire vs. 3 wire alternator in reply to david, 05-01-2003 09:27:35  
A lot of 1 wire Delco alternators are actually 3 wire ones with a plug over the other 2 wires. I switched my Oliver from 1 to 3 wire operation so that I wouldn't have to rev it up so high, and also so that I would have an idiot light to tell me if the alternator was working (a 1600 doesn't have a guage).



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ratface

05-01-2003 09:43:02




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 Re: 1 wire vs. 3 wire alternator in reply to david, 05-01-2003 09:27:35  
The one wire needs the engine reved up to get it to start charging. Folks don't like to rev a cold engine. Mine is the one wire type and I get along fine. You just need a little patience.



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Jim Cox SW Missouri

05-01-2003 10:18:37




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 Re: Re: 1 wire vs. 3 wire alternator in reply to ratface, 05-01-2003 09:43:02  
I agree too. The typical alternator needs permission from two sources before it will begin charging. 1- the ignition switch, and 2- the trio circuit inside. the trio rectifies what little electricity the old magnetism in the rotor may generate, and then the trio signal turns on the rotor for a bigger magnetic field and more output. The point of this is to not power up the rotor when the alternator is not turning, like before you start your engine. Without the ignition wire, the trio has to do it all, and that takes RPM. A smaller pulley on the alt will help too. Good Luck
Jim Cox
Starter Rebuilder Guy

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Ratface is correct..............TimK

05-01-2003 09:50:42




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 Re: Re: 1 wire vs. 3 wire alternator in reply to ratface, 05-01-2003 09:43:02  
.



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