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12 volt alternator


 
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Farmall Bob
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Joined: 05 Mar 2009
Posts: 352


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PostPosted: Thu May 13, 2021 1:54 pm    Post subject: 12 volt alternator Reply to specific post Reply with quote

I am having trouble finding numbers off my alternator to order a new one. It is a Delco with 3 wires coming out of it. I believe they call it a 1 wire alternator? Any help much appreciated, thank you.
Bob
 
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Jim.ME
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Joined: 02 Mar 2018
Posts: 4322


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PostPosted: Thu May 13, 2021 2:44 pm    Post subject: Re: 12 volt alternator Reply to specific post Reply with quote

CVPost-Farmall Bob wrote:
(quoted from post at 17:54:52 05/13/21) I am having trouble finding numbers off my alternator to order a new one. It is a Delco with 3 wires coming out of it. I believe they call it a 1 wire alternator? Any help much appreciated, thank you.
Bob


"It is a Delco with 3 wires coming out of it." sounds to me like a 3 wire, not a one wire. I would just take it to a parts store and swap it, no need for the alternator numbers. Also with three wires it could be externally or internally regulated. Where are the two spade terminals?







 
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Janicholson
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Joined: 30 Jan 2004
Posts: 36711
Location: St. Cloud, MN

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PostPosted: Thu May 13, 2021 4:51 pm    Post subject: Re: 12 volt alternator Reply to specific post Reply with quote

If the three wires attach to a regualtor, it is not a one wire.
If the three wires attach #1 spade terminal to the ignition through a diode or small lamp, one attaches to the output (big) terminal from #2 spade terminal, and the big terminal to the amp meter, it is a standard Delco 10SI alternator.
If there is one wire connected to the amp meter or starter switch on the starter, and no others it is a One wire The one wire looks the same as the one in this link. Jim
Delco 10SI with 3 wire hook up.

 
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