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Old 09-27-2006, 05:54 PM
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Altenator

Hey all, i have just taken off a 3 wire alt and put a 1 wire on, the old alt had a ground wire attached and the new on doesnt have a spot for it to go. the new alt has a built in regulator but do i need this ground wire hooked up? it is on a 283 from a 57 chevy.
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Old 09-27-2006, 06:12 PM
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Doc here,

Look again..There should exist a Lug or Threaded Hole that Say's "G" or "GND" on it..

If you can't find it, then attach your ground wire to ANY of the bottom (not adjustable bolts) for the mount / to / Alternator ...

Ground , (Well Bonded, Good Ground) Is 50 % of the circuit..in any electrical endeavor..

You can have 14.4 Volts at 100 amps being generated inside that alternator, without a GOOD ground, It's just electrons all dressed up with nowhere to go...

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Old 09-27-2006, 06:34 PM
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altenator

I just looked again and did find a g or grd, but there was an open thread that i attached the grd to. The wires from the old alt that were hooked up to the 1/R and 2/F what happens to them? do i hook them to the new altenaotr or do i need them, i think they are for the regulator, but could they be for something else? also there is a wire from the altenator to a thing on the firewall then a wire from that to the coil, do you know what that is?
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Old 09-27-2006, 07:25 PM
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Doc here,

Those will be abandoned Or removed, Check to be sure they go to the Regulator, and disconnect at that end as well..

As for the other wire..unless this is a MOPAR, could be someone's idea of switched power to the ballast resistor OR a form of remote sensing..

Be advise also, with the one wire, your Idiot lamp will no longer function, AND you need to slightly rev the engine to "Self Excite" or turn on the internal regulator from a low RPM start..may or may not suffer "Flicker" on the lighting system..

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