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Allis Chalmers Discussion Forum
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alternator?

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LWD

10-22-2005 17:33:47




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with a internal regulator, which one would be the the most handy to put on a D-15? the one with the single wire would you just run the wire to the amp gage? I`m thinking one with a smale dia. would be handy for the adjustmet bracket.




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LWD

10-22-2005 19:02:10




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 Re: alternator? in reply to LWD, 10-22-2005 17:33:47  
when I was talking about dia. I was talking about the alternator.



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steve(ill)

10-22-2005 18:59:51




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 Re: alternator? in reply to LWD, 10-22-2005 17:33:47  
the DELCO 10si is by far the most common since it was used on all lGM cars and trucks from 1975 to about 1990 THey are very cheap also if you get the three wire unit. it is not that big a deal to use the 3 wire. tow wires are 12 volt, and the third is turned on and off 12 volt with a key or switch. simple.--- if you wnat small you need a newer alternator such as the CS130 DELCO from the 1990-2000 era, or a Nippondisco from a Honda or Mazda. All are basically the same hook up once you figure out which pin is which. You should get one at a junk yard off a wrecked cr. Can cost $200 at NAPA. the old DELCO 10si is about $40.

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John T

10-22-2005 18:12:14




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 Re: alternator? in reply to LWD, 10-22-2005 17:33:47  
I can answer part of your question, YES if you used a true "One Wire" Alternator (lots of people use the GM 10 SI 3 wire) its output (or even the GM 10SI 3 wire) wires to the ammeters Load (NOT to battery/starter) terminal. If you use like a 50 amp alternator I use 10 Gauge to the ammeter and from the ammeters supply terminal to the battery/starter. Dont forget most alternators require Negative ground !!!

John T Nordhoff in Indiana, retired electrical engineer

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LWD

10-22-2005 18:58:01




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 Re: alternator? in reply to John T, 10-22-2005 18:12:14  
thanks john, I`ll go neg. ground and turn my coil around too.



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Jim Guarino, Agri-Service

10-23-2005 04:54:32




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 Re: alternator? in reply to LWD, 10-22-2005 18:58:01  
You will also need to install an ignition resistor if you are using the 6 volt coil. An option would be to use a coil with an internal resistor. They will be labeled: "12 volt, use without resistor". Of course, you will also need to change to 12 volt bulbs in the lights.



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John T

10-22-2005 19:12:28




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 Re: alternator? in reply to LWD, 10-22-2005 18:58:01  
Youre welcome, have to swap leads on the ammeter also if you charge from Pos to neg ground remember.

John T



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