I think I killed my alternator. To start at the beginning, I bought a junkyard delco 10 si and installed it on my 122s, after removing the original generator. It ran lovely for an hour, putting out 14.2 or so volts. Then it quit putting out anything. I am replacing the brushes and internal regulator in the alt today. But I would like if someone would check my wiring that I did on install, because maybe the alt was going bad anyway, but maybe I murdered it by messing up the wiring. So here is what I did: I wired it up running one solo fat red wire to the battery, and (from the pair that go on the spade connectors of the alt) I ran the other fat red wire to an old orange wire that appears to go to the starter hot bolt. And the smaller brown wire I ran to a white wire that goes to the dash. There were old wires left over from the old regulator, so I checked that I had the correct dash wire by flipping the ignition switch on and off...the wire I hooked my new brown wire to did come on with the switch, and go off with it. So I had this: Alt bat wire to car battery; Alt pigtail brown wire from spade connector #1 to car dash; Alt pigtail fat red wire from spade connector #2 to car starter hot bolt. The connections from #1 and #2 do include some pretty iffey 1966 wires that appear to have been hot at one time.
Before I reinstall, what do you folks think? Am I ok going trial and error, or should I start replacing old wires...and if so, yikes.