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oldironguy 
Silver Level
Joined: 01 Oct 2010
Location: Shoreview, Minn
Points: 370
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 Topic: Convert my G back to 6 Volt?
Posted: 19 Feb 2011 at 10:41am |
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I have a G that was sloppily converted to 12 volt with an altinator, reused auto harness no switch and chopped up sheet metal. i'd like to convert it back to 6 volt. I have a good starter but what other parts do I need? Any advice on how to go about it? I see three different wiring harnesses offered on e-bay...at least three with widly different prices. Who offers a good harness at reasonable price?
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CTuckerNWIL
Orange Level
Joined: 11 Sep 2009
Location: NW Illinois
Points: 22823
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Posted: 19 Feb 2011 at 11:05am |
You would need the generator, a cut-out relay, the 3 position light switch, a "6 volt" coil and new light bulbs along with your new wiring harness. I would just about bet Steve B at B&B would have a package deal for you to do the change. I don't know what is reasonable to you but it won't be cheap.
B&B
CUSTOM CIRCUITS
77 COUNTY ROUTE 519
NEWTON, NJ 07860
PHONE (973) 632-5596
E-mail: customcircuits@gmail.com
Companye specializes in building wiring systems (6V & 12V conversions)
for all early Allis-Chalmers Tractors. They also offer a complete line
of electrical parts and
accessories, along with Magneto, Distributor, Carburetor, Headlight 3 pos.
switches, Starter, Generator, & Alternator rebuilding.
They build their own Battery
cables, spark plug wire sets, offer our own reproduction parts and carry
Fram filters in stock.
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Gerald J.
Orange Level
Joined: 12 Sep 2009
Location: Hamilton Co, IA
Points: 5636
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Posted: 19 Feb 2011 at 11:13am |
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The 12 volt alternator would work beautifully at 6 volts with a special regulator made for 6 volts, but originally it had a generator which you need. And the associated 6 volt regulator. Wiring can't be terribly complex so a harness may be overkill unless its assembled with lots of loom or tape.
Gerald J.
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abbaschild95
Silver Level
Joined: 13 Feb 2011
Location: Colorado
Points: 149
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Posted: 19 Feb 2011 at 10:39pm |
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first of all i wouldnt advise the switch. just clean up the 12 volt. the six is a lot more hassle than its worth and it just doesnt have the same bite...
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jaybmiller
Orange Level Access
Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 23685
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Posted: 20 Feb 2011 at 6:17am |
Unless you're dead set on making it all original, I'd stay with 12 volt.One of the newer Chevy alternators (cs120 series,4 pin) should fit 'under the hood' without altering the sheet metal.Wiring of a G is very simple,easy to get at and not that difficult.Just take one wire at a time and learn as you go.Nice thing about 12 volt system, parts are cheap,easy to get.You can easily 'do it yourself' in an afternoon WITH a couple of coffee breaks.
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Dusty MI
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Joined: 13 Sep 2009
Location: Charlotte, Mi
Points: 5058
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Posted: 20 Feb 2011 at 8:24am |
I don't remember ever seeing a G with an alternator that didn't have the sheet metal altered.
Does anyone know of one that hasn't?
Dusty
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917 H, '48 G, '65 D-10 series III "Allis Express"
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jaybmiller
Orange Level Access
Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 23685
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Posted: 20 Feb 2011 at 8:49am |
Dusty, I know the alternator from the Mitsubishi diesel engine in a Toro groundkeeper ZTR will fit. Was ready to toss it on, then sold the Toro. Being bored, I rebuilt the G's generator and tossed it back on. Maybe it's a CS110, cs100 ?? but the newer GM alternators should be doable, much smaller in diameter.
If I still had my G I could easily fab it up....bored with Winter again...
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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oldironguy
Silver Level
Joined: 01 Oct 2010
Location: Shoreview, Minn
Points: 370
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Posted: 20 Feb 2011 at 2:45pm |
Thanks Guys.
Now i'm still unsure about what to do. I do like things looking origina and the whacked up sheet metal bothers me. I have a great starter/generator guy in forest Lake MN. Think I'll spend some time with him. Anybody parting out a G with used parts I need for 6-volt?
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Bob-Maine
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Joined: 11 Sep 2009
Location: Central Maine
Points: 922
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Posted: 20 Feb 2011 at 2:53pm |
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I took the 6 V generator off my G to a starter/gen guy. He said it was beyond repair. So I began looking for another. They seemed to be very scarce. So I took the generator to another, older, wiser starter/gen guy and he rebuil it. My point is that they may be very hard to come by.
Bob@allisdowneast
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I used to think I was indecisive, but now I'm not sure.
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oldironguy
Silver Level
Joined: 01 Oct 2010
Location: Shoreview, Minn
Points: 370
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Posted: 20 Feb 2011 at 3:18pm |
Thanks, Bob.
Do you know if the generator used on the G was the same one used on the B & C? Was it used on other brands of tractors?
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22823
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Posted: 20 Feb 2011 at 8:29pm |
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I believe the G generator is shorter in over-all length than the B,C gennys.
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