That explains it. I couldn't figure out why the alternator wasn't charging. I accidentally hooked the alternator up backwards initially, and I think I fried the diodes. Next time around, still no charge. I think this is why.
Well maybe it explains. Right now its a guess.
Not sure what you mean be hooking up the alternator backwards. If you're talking about the field connections, they can be reversed with no harm.
As far as charging goes, lets break this down so you we can figure out what is happening.
Sometimes we say an alternator "is charging" when we mean it is supplying power to the system. Other times when we say alternator charging we actually mean that the battery is getting recharged. I'm not sure what you have observed, but I'm guessing maybe the battery is run down?
With the damaged/poor connection in the output wire, its possible that the alternator is supplying power. Just that not much was flowing through. To know if the alternator is working measure its output voltage when the engine is running.
Yeah, I thought so, too! I tried connecting it to the battery stud, but no dice. Found out it's because the yellow starter wire had nothing to connect to at the bulkhead.
You are on the right path connecting the stud on the relay to the red wire A1C.
It should actually be connected with a 16 ga fusible link. You can buy a generic one at most part stores and splice it in. It may be orange rather than blue but will work. Later you can order a correct one if this is a restoration.
What to do with the wire going from the relay to cavity 19? I'd remove it.
If possible figure out where the wire in number 19 cavity really goes on the cabin side.
My guesses are a) wiper switch b)washer switch c) fuse box 'hot' feed.
If its washer switch, then that might have been an ad hoc push button start. LOL
(
and yes it will work if the key is in run or accessory, but shouldnt with key in start)
With the battery feed fixed, use powered light or an ohmeter to check for shorts to ground. If none , good. You can then test wires to see what is connected with key off, then in run, and then in start.
As far as starting, if you are in a jam,the yellow wire is not needed. All that is needed is a jumper wire to briefly connect power to that relay terminal.
But the fix is to find the S1 or S2 wire from the key switch and connect it to the bulkhead terminal and then onto the starter relay.
Don't forget to put the battery on a charger.
Didn't mean to interject so much. 67Dart273 has a handle on this stuff, esp. the seatbelt thing. Just happened to notice those wires incorrectly attached at the relay.