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05-04-2021 05:24:48

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First off thanks for the responses on the Fluid question in a earlier post. Now I have new question. The Lucas Alternator got fried when the wiring harness rubbed through to the power steering line. I was able to get the lights fixed and the gauges now work. I was thinking of instead of buying a after market wiring harness and a new lucas alternator, I was going to just go with a one wire conversion. Any recommendations? If not where is the best place to get a good wiring harness?

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05-05-2021 14:53:18

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 Re: Alternator in reply to Gibby, 05-04-2021 05:24:48  
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As rvirgil_KS posted, "connect Pin #2 to output". In other words you just make a short jumper wire to go from the #2 spade terminal to the battery connection on the alternator.

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05-05-2021 12:33:17

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 Re: Alternator in reply to Gibby, 05-04-2021 05:24:48  
Diagram I have for a MF 240 show it with an alternator warning lamp and not an ammeter.

If so and you get a 1 wire conversion you will lose the warning lamp function. I would get a 3 wire Delco, connect Pin #2 to output and connect alternator end of warning lamp to pin 1

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05-05-2021 12:46:56

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 Re: Alternator in reply to rvirgil_KS, 05-05-2021 12:33:17  
That sounds like a plan - does anything go on pin 2?

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05-04-2021 09:06:20

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 Re: Alternator in reply to Gibby, 05-04-2021 05:24:48  
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I bought the Delco alternator off this site, along with the one wire conversion plug. I used whatever battery cable Autozone had at the time, maybe 2 or 4 AWG for both the positive and the ground cables. The starter spins much faster now than it ever did, well worth the upgrade. The machine also runs better than it ever did with the alt upgrade.

My generator wasn't putting much out anymore, so I was primarily running off battery power. The difference for me was night and day for that reason alone. The side benefit is that I've got power to spare for lighting, etc...

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05-04-2021 05:47:39

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 Re: Alternator in reply to Gibby, 05-04-2021 05:24:48  
You can. I had a Delco 10si and bought a $13 dollar conversion for it. I got it put in and the regulator wont hold the voltage down. So I just put a CS130 that I had laying around back on it. That's as close to a one wire that I have ever had.

Thinking back, I did have one on a highway tractor back in the late 60's. I don't remember having any problems with it.

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