Alternator Questions - Impala Tech
Electrical & Wiring Troubleshooting electrical problems

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post #1 of 2 (permalink) Old 03-31-2013, 11:39 PM Thread Starter
Join Date: Nov 2011
Location: Texas
Posts: 77
Alternator Questions

This past weekend I discovered that the generator on my 62 had finally died. I was advised by a mechanic to just put an alternator on it. I had an exhaust manifold and the brackets from a 66 bel-air so mounting it was no problem. Where my trouble lies is in the wiring.

I ran a solid, heavy gauge wire from the battery to the alternator with a fusible link on the battery side. I ran the same sized wire from the alternator to the horn relay to power the body. Being this is an internally regulated 3-wire, I ran the red wire to the output terminal, and the white one through the firewall to a switch-on pin, as there were none under the hood.

I started the engine, and everything seemed to be working....that is until I tried to turn it off. With the switch off, it continued to run until I unplugged the alternator wire. I ran the white wire through a relay off of the switch and it fixed the problem.

My questions are:

1. What caused the alternator to keep the engine running?
2. Is my wiring schematic going to work?
bluegoose is offline  
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post #2 of 2 (permalink) Old 03-31-2013, 11:43 PM
Join Date: Jul 2009
Location: Canada
Posts: 1,391
This PDF will likely help you.

Two doors, four doors, wagons, and ragtops.
jayoldschool is offline  
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