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Ford Tractors Discussion Forum
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how do i wire this up to test it

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pinball

09-29-2019 16:58:28




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I how do I wire this up to test it. for a 961 ford tractor.




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MarkB_MI

09-30-2019 02:41:47




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 Re: how do i wire this up to test it in reply to pinball, 09-29-2019 16:58:28  
That's the same alternator I have on my four cylinder 4000. I didn't do the conversion, but it works. And it does require an external regulator. Certainly it's simpler to use an alternator with an internal regulator. If mine ever gives out, I'll probably replace it with an internally regulated alternator and completely rewire the tractor, as the current wiring is a mess.



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Bern

09-29-2019 18:27:09




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 Re: how do i wire this up to test it in reply to pinball, 09-29-2019 16:58:28  
Run a battery hot wire to the red post, and a battery ground wire to an uninsulated post or a good ground on the block. With the engine running, run a hot jumper wire to the white "FLD" post while monitoring battery voltage with a meter. If voltage shoots up, you've got a keeper. Only do this long enough to get results, as leaving it on will cook your battery.

If the voltage does not go up, shut off the engine and touch the hot jumper wire to the white terminal. You should see a spark when you do. If you don't, it has bad brushes.

Keep in mind that this style of alternator requires an external regulator.

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pinball

09-29-2019 20:30:36




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 Re: how do i wire this up to test it in reply to Bern, 09-29-2019 18:27:09  
apparently what your telling me it needs a voltage reg to work. sounds as though I might just have to buy a delco. thanks norm



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