Well, I finally got this thing on the road! Thank you all for your valued input. I am having an issue with the high beams that I can't figure out. When the high beam switch is hit nothing happens. According to the light in the dash the high beams are on. All the time. I tested the switch. And I think it is operating as it should. Common to one post connected, then common to the other. I have a wiring diagram that someone was so gracious to provide me on here, and it looks like the high and low beams are pretty much connected to the posts like I would have figured, light-green/black to one side (High Beam), and red/black low beam. On the diagram I have, the light-green/black runs back to the "printed circuit connector". But I do not see the high beam indicator light anywhere.
check the grounds for the head lights. if one has a bad ground it will back feed though the bright circuit
Ok here's the skinny. I tested the ground (resistance) and it was less than an ohm from the ground in the harness to the negative battery terminal. I tested the filaments, and, at least on the one I headlight pulled I had about .7 Ohms. I am assuming that both high and low on that side is good. The peculiar thing is that with the headlights on I am measuring 10.7V on the highbeam post. Of course there is no difference if I hit the switch or not. So I have a voltage drop somewhere. And I was getting negligible if any voltage from the low beam terminal. My first guess was back to the bad ground again. So I tested both from the ground in the harness to the high beam terminal, and directly on the negative terminal on the battery. Both were 10.7V to the high beam wire. I measured across all of the fuses to see if I had a bad connection causing a resistance, and a voltage drop. I couldn't find this 2 volts anywhere. (the battery was reading 12.8V).
Maybe there is some other ground for the instrument panel that may have been missed when we swapped the engine? It looks like the ground for the headlights is connected to the body just below the lights. Maybe I am looking for a ground for this "printed circuit"? I did just re-read all of the posts. I did not check the ground on the right headlight yet. I will do that soon.
Assuming power & not ground is switched by the dimmer, could well be a bad switch and you are reading a "ghost voltage"(after all Halloween is over and they have nothing better to do) Check voltage at headlight plug with light in place, or use a test light I'm guessing with load voltage will disappear...
OK speaking of ghosts we did have a visit apparently. And I guess it was divine. For some unexplained reason it just started working. I have no explanation...