Quote:
Originally Posted by MikeB
From the factory, my 69 has a single 12 gauge wire that runs from the battery through a #16 fusible link, across the radiator support, and into a "splice" where it was crimped and soldered together with two other 12 gauge wires -- one running to the alternator, the other to the fuse panel. That is the only 12 volt feed wire running to the fuse panel.
I just confirmed the above on my old stock harnesses, which are now laying on the floor and not connected to each other. One red wire from the "splice" feeds the battery buss. Then the headlight switch and ignition switch are on the same buss. No separation at all.
Maybe that isn't the case for a 67-72 C20??? I do know that on my old 82 C10, there were two separate 12 volt wires feeding the fuse panel, and maybe the configuration is as you described, but I never looked at it.
Photo shows the GM "splice". Just a little crude, huh? It was wrapped in a thick rubber-like tape. The black wire was one of two used used to send a voltage drop to the stock ammeter (which is really a -/0/+ voltmeter).
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Mike, you're missing the point and also getting off subject. Never mind what's on the '82, that's another vehicle for another thread.. Dig deeper into that old harness.. Somewhere along one of those red wires is another splice or connection for the feed to the headlight switch. This main power distribution circuit begins at the battery + and runs all over the place. Open the harness at the headlight switch and follow that red 12 gauge wire and see just where it joins the main feed wire.. It could possibly join at the starter solenoid or maybe at a junction post connecting to the + cable at the battery..
The point I'm making and trying to phrase it so you understand, is that every single electron of current (amperage) used by an electrical system has to be replaced by the alternator or the battery will run down.. The wire feeding the current from the alternator back to the battery has to be heavy enough to handle those electrons. You seem offended because I didn't agree with your total electron count (amperage of 35 amps).. It wasn't my intention, and I so stated at the beginning of that statement, to argue the point or start a pissing match.