1967 wireing diagram/ charging problems

just picked up a 1967 Chevy P30 1 ton grumann Olson and having charging problems, the instrument panel is just like the ones in the 2nd gen G vans, I am guessing the light and ignition switches are the same too? strange/dumb question is.....does the charging system run thru either of those switches, could one of them be the culpret ? I pulled the Alt. and took to kragens and put it on tester , tested good, voltage regulator is also new, I charge the battery to 12 volts then start the van and the volt meter shows 11.88 on the battery when running .........

Hmmm...? I know I do have 12 volts at that output terminal, there is one green wire and one black wire in a plug that is plugged into that square hole with two spade connectors sticking out, seems like the green one is on the left of the plug.... so the black one must be connected to the "F"

Thanx, so what happens to all the wires going to the voltage regulator and resistor ? it all gets disconnected ?

donivan65 wrote:(I guess you could sell them on Ebay),,,,,actually, on the 3rd Gen Alternator, the Idiot light wire that goes to the voltage regulator gets plugged into the #1 spot and you run a jumper from #2 to the output with the battery wire on it,,,,you can check out the wiring on your voltage regulator if you want,,,,add a ground to it and if if still don't charge, you need a regulator,,,or get the $29 Autozone special and throw away all that wiring,,,,

so the output terminal (B+) needs a wire going from there to the battery or can it go to the starter ? what guage should it be ? Thanx !!

ok, Thanx Don, I better read this tomorrow man, things are a little blurrrry right now! I wanna convert to the 3 wire alt. you said... "And #2 terminal also needs some battery so you add a ring terminal and hook it to the output terminal to that white connector that they sell" .............. white connector ?

Thanx man, I think I got it !! you da

donivan65 wrote:We give you choices here,,,,you can fix it, replace it or upgrade it,,,,,,

I think I am gonna go with that upgraded 3rd gen 3-wire type you showed, I bet you were thinkin... WTF ! do I have to draw you a picture ? I guess you did haa, IT WORKED!! I think I got it now, gonna do the upgrade tomorrow hopefully. Thanx !!

Donovan what does the F and R wire stand for ?

regulator & field terminals on alt.

donivan65 wrote:

I thought that the white connector (connector 2) is supposed to be wired to a 12 volt ignition ON circuit. Because its purpose it to excite the rectifier when the ignition is on so it will start charging when the alternator starts spinning vs a one wire setup that wont start charging until you rev the motor up a second (which excites the rectifier). if you have it wired up directly to the battery wont the recitifer constantly be excited..running the risk of burning it up as the car is parked? thats how it was explained to me.