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Allis Chalmers Discussion Forum
:

12 volt alternator for ac d14

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Doug Gates

09-14-2011 19:44:11




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I am looking to convert my d14 to 12 volts, anyone know of what style alternator to look for. Should I buy new or head to the junkyard?




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gene

09-16-2011 04:38:49




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-14-2011 19:44:11  
Pick up a single wire Delco from autoparts store. My cost was $54- and the old 10SI as a core - couple months ago. Starts charging upon engine start.

If the alternator pulley doesn't match the belt, remove the pulley from your generator, install on the alternator.

Minor mounting modifications; belt tightening bracket and some bottom mount work, washers and or spacers.



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steve(ill)

09-15-2011 16:55:39




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-14-2011 19:44:11  
you want to wire up something like this on a Delco 10SI... if you get the newer CS130, the hot wire to #2 spade will be internal and not needed. All alternators need a second wire to "signal" them to start. 1 wire jobs try to do this internal, not a good plan.

third party image

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old

09-15-2011 10:13:13




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-14-2011 19:44:11  
If you have an O'Reilly's auto parts store in your area go there and buy an alternator that fits a 1980 Chev pick up no power any thing no AC. It will cost you around $45 plus a $10 core but any alternator most of the time will work as a core. You can get them with a life time warranty so if it stops working you can get a new one for the time it takes to take it back



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soundguy

09-15-2011 07:48:11




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-14-2011 19:44:11  
IMHO.. I'd go for a 3 wire gm.. usually cheaper than a 1 wire, and can turn on at 400 rpm instead of say 1200+ I know a guy with a jd that used a 1 wire and the macine didn't make enough rpm to turn it on.. he had to go 3 wire.

in reality.. it's only 2 wire as the 3rd wire is a 2" jumper from #2 tab to the charge stud.

soundguy



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Doug Gates

09-15-2011 14:17:52




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 Re: 12 volt alternator for ac d14 in reply to soundguy, 09-15-2011 07:48:11  
Thanks Soundguy,

I am not all that great at electronics, so the other two studs are a hot and a ground and the #2 stud you were talking about jumps to the hot? Do I also need to have a 12 volt coil? Sorry, these are probably dumb questions but I am still learning. Thanks for your help.

Doug



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soundguy

09-15-2011 14:48:43




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-15-2011 14:17:52  
backup.

on a delco 10si alternator there is a CHARGE STUD on the back

then ther eis a lil plug with 2 male spade lugs in it, labeled #1 and #2

jump #2 to the charge stud.

the charge stud goes to your ammeter, or wherever the original wire from the bat terminal on the vreg went.

the #1 terminal goes thru a 194 marker lamp bulb and hooks to the same side of the ignition switch as the ignition coil does.

YES i would use a REAL 12v coil like a 16$ napa IC14SB and don't use any resistors.

soundguy

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DiyDave

09-15-2011 02:11:10




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-14-2011 19:44:11  
As others have said, get a GM 1 wire alt. I use a 1 wire, with a double pulley, flip the generator bracket over, and cut some of the bolt hole off of the alternator, so it lines up with the belt, and use a piece of all thread, as a pivot point. For the adjustment strap, I use the strap, that was on a 327 chevy motor. One thing to remember is that the 2 bolts holding the gen bracket, go all the way through the water jacket of the motor, so drain the AF, before starting.

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Doug Gates

09-15-2011 14:12:46




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 Re: 12 volt alternator for ac d14 in reply to DiyDave, 09-15-2011 02:11:10  
Thanks for the info



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steve(ill)

09-14-2011 20:24:48




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 Re: 12 volt alternator for ac d14 in reply to Doug Gates, 09-14-2011 19:44:11  
the most common alternator is the old 10SI used on most GM cars from about 1975 to 1995. After that they went to the CS130 which is an inch smaller and fits nice. YOu can use about any alternator you want, but get one with an internal voltagae regulator. About all built since 1990 would be that way (plus the old 10 SI). I buy the CS 130 on e-bay. YOu can get a decent one for $40.



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steve(ill)

09-14-2011 20:35:20




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 Re: 12 volt alternator for ac d14 in reply to steve(ill), 09-14-2011 20:24:48  
http://cgi.ebay.com/ebaymotors/1996-Chevy-Lumina-alternator-/190575757040?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c5f3346f0



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