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Canadian Poncho Homepage -> Canadian Poncho -> 58-64 Full Size Power Train Tech Forum -> Alternator question
Post Info TOPIC: Alternator question
carbuff2007


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Guys finally got the motor just about to the turn the key time, probably Friday we should fire it up, I changed over to an alternator instead of the generator, how can I hook up the wires from the alternator to make it charge, Thanks Brent, Pics will be coming of the changeover.

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Professur


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Depends if it's a one wire alternator or not.

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seventy2plus2


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it will depend if the alternator is internally regulated or externally regulated.   Are you able to be more specific, or post a photo of the electrical connections on the alternator?

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carbuff2007


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Its a 2 wire alternator which is internally regulated

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cdnpont


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Here's a very simplified veiw of a GM internally regulated system.

2427478141_0ea03a4661_o.jpg

#1 position is igintion on, powering the alternator field from the battery.
#2 senses sytem load from the harness main power splice. In a pinch you probably could go right to the battery positive to get up and charging.
 "Battery' powers the system from a central powerpoint.

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gparis7


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I converted my 62 to this alternator but i can't remember how I hooked it up and I don't have the car anymore. However I do remember that I used the existing generator wires.

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JC2+2


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I found in some cases the engine won't shut off with the key after this swap.
Then you need to install a diode in the #1 ignition feed wire.
JC



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cdnpont


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Looking at a 61 wiring diagram, with an internal regulated alt, this should work.


Be ready to disconnect the battery quickly when she starts if you see trouble!


Connect the old (Heavy charging) wire previously from generator position "A" to the new alternator "Bat" position.

Connect the brown "ignition on" powered wire previously from generator position "A" to the new alternator "1" (Field power) position.

Connect the old wire previously from generator "F" to the new alternator "2" (load sense) position.

Disconnect the old voltage regulator plug, shunt together position "B" (horn relay, body power, battery feed) to plug position "A" (now, new alt "Bat") and "F" (now, new alt position "2").

Ultimately a buss strip should be used to tie the 5 wires together safely.

 

Cheers, Mark






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cdnpont


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61 Diagram

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carbuff2007


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Any way of checking the alternator if its charging before I hook up all the wires, being it is used, thanks brent

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sixtywagon


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Canadian Tire and most parts stores have a free test for alts and starters. At least they used to.

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carbuff2007


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Its charging, thanks guys

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