Need HELP with alternator6to 12 volt

Ralph 1111 · Apr 4, 2009

Well to start with i don't whether my alternator is a 10si or what it came off a 1996 chevy van i do know the large red wire goes to battery plus hot side what i'm not so sure of is where the other two wires go and i don't want to destroy tne alternator before i even get started
Thanks for any help Ralph in Iowa

garytomaszewski · Apr 4, 2009

If it came off a 96 I don't think it is a 10si, and it is more likely 130 amp out put, way more than you need to replace a 6 volt system unless you are going to add LOTS of lights. The dual plug # 2 wire can wire direct to the large battery terminal and the #1 goes to the ignition with a small idiot light between ign. live when running and the alternator.

Jubilee · Apr 4, 2009

10-SI Wiring Instructions:
The 10-SI alternator has three terminals, however only two of them get connected to the tractor. (Thus, the 10-SI is sometimes referred to as a two-wire or three-wire alternator)
• The “Bat” terminal should be connected to the ammeter with a 10 gauge wire. If a voltmeter is used instead of an ammeter, the 10 gauge wire can be run directly to the stud on the starter where the battery cable connects.
• The number “1” terminal should be connected to the ignition switch with 16 or 18 gauge wire so the alternator only receives power when the tractor is “on”. A one amp / 50 volt diode should be installed between the ignition switch and the “1” terminal to prevent backward current flow through the alternator when the ignition switch is “off”.
• The number “2” terminal should be connected directly to the “Bat” terminal (16 or 18 gauge wire) on the back of the alternator.
Note: Genesee Products offers several products to help with your 12 volt conversion, including a wiring kit for the 10-SI alternator. For more information on these products, please visit their web site or contact them at [email protected]

JDemaris · Apr 4, 2009

A 1996 is not going to be a 10SI or 12SI. It's going to be a CS130, CS121, or the high-output CS144.

Goose · Apr 4, 2009

NAPA also sells a wiring pigtail with instructions. I converted my AC D19 from a positive ground 12 volt generator to a 12 volt 10SI negative ground alternator. It took me several hours to fabricate a bracket to hold the alternator and about 20 minutes for the wiring hookup.

The only reason I did it was the generator quit working and I already had a good alternator.

Ralph 1111 · Apr 4, 2009

Thanks for the fast reply and information.
If i understand this correctly the cs130/cs120 and cs144 all wire up the same as 10si a'm i right on that ? i have wiring diagram for the10si which i used successfully to wire up a 10si on my other tractor but was not sure on this one and although it is a free doaner did'nt want to ruin it THANK again Ralph in Iowa

Jubilee · Apr 4, 2009

I converted my 1946 Farmall to an alternator. It has a magneto so there is not an ignition switch. I used a two post oil pressure to "excite" the alternator and did the same on an Allis Chalmers B. Works fine and do not have to use a diode or "idiot" light to prevent back feed. My next project is to convert my Ford Jubilee but plan to use a 12V generator from a 1956 to about 1969 Ford product. I was working for Ford when alternators were first used but can"t remember the year. The generator will make it look more "original" than an alternator.

Anonymous-0 · Apr 4, 2009

Dude, use some periods & stuff, so the educated people on here that can help you with your problem will be able to read the things you write.

Mike (WA) · Apr 5, 2009

Bob- The picture! Post the picture!

Need HELP with alternator6to 12 volt

Ralph 1111

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garytomaszewski

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Jubilee

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JDemaris

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Goose

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Ralph 1111

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Jubilee

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Anonymous-0

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Mike (WA)

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