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  Hooking up a one wire 100amp. alt. Help

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Author Topic:   Hooking up a one wire 100amp. alt. Help

Posts: 296
From: Sarasota, Fla. USA
Registered: Jun 99

posted 06-21-2001 09:56 PM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
For my 69 I just purchased a 100amp. chromed one wire alt. I would like to clean up that wiring mess going to the solonid and regulator etc. What I have laying there is the alt. harness which plugs into main harness and all the rest. Question: What wires do I keep, and which do I snip and tape off? There was no paperwork with the new alt. My guess is to connect the output wire to the pos.lug on back of alt. Or can I wire from pos. lug of alt directly to the pos. side of the solonid or battery. This is my first one wire install, any help or instructions appreciated

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The Iceman

Posts: 1006
From: Shelton, CT
Registered: Jul 2000

posted 06-21-2001 10:43 PM     Click Here to See the Profile for The Iceman   Click Here to Email The Iceman     Edit/Delete Message   Reply w/Quote
welp, I cant help ya either, but heck! I may as well ask if anyone could help hookin my 65 amp alt up (just for reference)

Dan - and yes, I am still called "Dan Dan The Chevy Man" to this day! haha
1965 Coupe "BeeBop"
Straight "6"
3-spd manual w/Hurst Shift

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Posts: 20
From: Regina, Sk, Canada
Registered: Apr 2001

posted 06-22-2001 12:52 AM     Click Here to See the Profile for KenB   Click Here to Email KenB     Edit/Delete Message   Reply w/Quote
Gary, connect it either way (direct to battery or to hot side of solenoid). As for the plug on the voltage regulator you can do what you wish. Depending on the alternator and vehicle wiring the regulator will have three or four wires on the plug. Any way it is wired now, you won't have to use any of these wires in the future. I would suggest that the best way to monitor your new alternator would be a basic voltmeter connected to a 12V source. I am sure I could find a way to connect up the factory gauge/light but it would take some doing.

As for the Iceman, it depends on the vehicle wiring but the basics are: regulator terminal F to FLD terminal on alt., reg. term S to STA term on alt, reg term. A to battery + (or similar unswitched source) and alt BAT term connects to battery indirectly since it will be tied to the hot side of the starter solenoid. The regulator terminal I is what will go to the guage/lamp if equipped (unless the 65 is quite different from what I remember).

Yes, I plan to clean up my wiring in the future also


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Posts: 28
Registered: Feb 2001

posted 06-22-2001 11:54 PM     Click Here to See the Profile for 460-67Stang   Click Here to Email 460-67Stang     Edit/Delete Message   Reply w/Quote
I'm about to do the same to my '67. Where did you get your alt? I bought my alt from It's an 80 amp, single wire unit. Looks great. I plan to just snip off the regulator wires to clean things up a bit. I'm also going to eliminate the starter cylinoid on the fender apron since the 460 starter already has it attached like a (gulp) Shevy. :-0


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Got a 429/460 motor in a classic Mustang? Join the "429/460 motors in classic mustangs" discussion group at Yahoo groups! To join, send e-mail to: [email protected]

'67 Mustang coupe in "restomodification", 472 Motor at about 500 hp, C-6 Tranny w/high stall convertor, 9" rear w/3:50 gears and Detroit Locker, Power Disc brakes all around. ETA = Summer '01 (Yea, was Spring ' happens!)

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Posts: 296
From: Sarasota, Fla. USA
Registered: Jun 99

posted 06-23-2001 12:10 AM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Brian, I got my 100 amp alt. from March at the same time I ordered the pulleys. I think I paid around 139.95 A great looking piece especially with the billet alt. serp pulley

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