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Farmall & IHC Tractors Discussion Forum
:

6 to 12 volt conversion on Super C

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Dkeating

08-29-2018 11:55:10




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I'm looking to convert to a 12-volt system from what I gathered and understand I need a one wire Delco alternator a 12 volt resistor coil I was wondering if I could run a wire from the new 12 volt battery to a toggle switch up to the new coil and not have to worry about hooking amp gauges up




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BarnyardEngineering

08-30-2018 04:34:13




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
I agree with Matt. The wiring on a Super C is not complicated at all, and even someone with no wiring experience can do it:

third party image



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mattofvinings

08-30-2018 01:43:25




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
Imo this is a really good time to set aside the time to strip every single wire out of the tractor and start over. Especially if you have a harness that's mangled with wires hanging out all over from years of repairs and troubleshooting.

When you remove a gen/voltage reg, you have extra wires naturally hanging out of the harness which are no longer needed.

If its in the time and material budget you can refresh the B+ and ground cables also, I like the braided ground strap personally. You can use split black conduit to hold your wires, its not original but is very abrasion resistant.

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rvirgil_KS

08-29-2018 17:08:48




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
Super C should have an ammeter and distributor. You are only changing the charging source, not the ignition or starter. With Alternator you must have negative ground.

1.Remove generator and regulator

2.Follow Old's advice and use a 3 wire alternator

3. Connect BAT wire from old regulator to output stud of alternator. If it has an L terminal on the old regulator connect that to the output stud also. It would be a good idea to replace wire from alternator to ammeter and from ammeter to starter switch where battery cable connects with a 10 gauge wire.

To change from positive to negative ground, reverse wires on ammeter, reverse wires on coil, install battery negative ground

4. Either add a 1 1/2 ohm resistor in series with original 6 volt coil, or replace with direct 12 volt no resistor required coil such as NAPA IC14SB or equivalent. These coils are wound with different wire than a 6 volt coil, they do not have a series resistor inside the can.

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old

08-29-2018 19:51:00




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 Re: 6 to 12 volt conversion on Super C in reply to rvirgil_KS, 08-29-2018 17:08:48  
I think your the only person who has agreed with me about a 12 volt coil NOT having an internal resister they at simply made different



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charlieu

08-29-2018 15:28:52




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
Give me a call and I can set you up with a complete kit including instructions 507-four three eight-8172 I also provide good instructions. If you run into problems I can help with just a phone call. third party image third party image

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Dkeating

08-29-2018 14:05:12




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
as far as I know what I have is the generator goes into a voltage regulator on the other side of the tractor I have a coil that goes into a distributor with points and plugs I do not think there is a Magneto but I could be wrong



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Charlie M

08-29-2018 14:02:26




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
I'm surprised no one has asked - do you have a magneto or a distributor as the wiring is different. A one wire works good for a magneto but you need the 3 wire for the distributor.



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Dkeating

08-29-2018 13:37:21




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
[quote="mattofvinings"](reply to post at 13:34:00 08/29/18) [/ I was just reading different things online and I'm getting conflicting results on how to wire it some say run the wire from the alternator to a voltage Gage then off the negative side of the volt gauge to the coil how does that charge the battery and also I remove the voltage regulator completely from the tractor correct



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mattofvinings

08-29-2018 13:34:00




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
I've had success with the "30 amp denso mini alternator" that one can get on ebay, on 3 tractors now. Its a 1 wire. But its case (the overall diameter) is much smaller than the Delcotronics version. Its possible that it won't make it 30 years but it was much easier to package. I don't have any night-ops currently, so it basically runs the ignition and keeps the battery charged, which it does very well.

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Dkeating

08-29-2018 12:14:20




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
what did you do with the extra wires and how do you know which one to run to the starter



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old

08-29-2018 12:44:32




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 12:14:20  
On the alternator you have a 2 wire plug marked #1 which is the excite wire and you hook it up to the ignition switch the side that goes to the coil. Then the #2 goes to the charge stud on the alternator. The wire from the charge stud goes to the battery or starter either one will work. You may need to put an idiot light or ballast resister in the #1 wire so you can shut it off. An O'Reilly's VR-1 ballast resister work well for that

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old

08-29-2018 12:10:26




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 Re: 6 to 12 volt conversion on Super C in reply to Dkeating, 08-29-2018 11:55:10  
Use a 3 wire and save your self some $$. An alternator made for a 1980 Chevy pickup no power any thing no AC will run around $45 where as a 1 wire alternator will run about twice that. As for no amp gauge yes you can do it that way but you will not know if the system is working. I have my IH584 pretty much set up that way but even simpler.



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