Overcharging Help needed (74 scamp)

i know im a dumb redneck but at a loss nd about to set this car on fire haha.
The good news is A. You're not about to set the car on fire with things you've done so far.
B. A lot of people have no clue about this - including a lot of city slickers... ;)

So all of these are NEW.
Battery
Voltage regulator
Alternator.


It is possible that the battery is not fully charged, but that's not the major problem. At least not yet. If you keep running the car on battery, then yes, it will be best to put it on charger so the alternator doesn't have to do a major charging of the battery.

Lets get to the problem.
when i hook it all up im getting 15 plus volts inside the car and at fuse panel mean while only like 12.38 volts at the battery .
If you are measuring at the battery when the engine is running, then you are correct the battery isn't connected to the alternator output.

a. What does the ammeter show? This is what actually shows the battery charging.
b. We commonly say charging to describe the alternator output. However for a situation like this its really important to seperate alternator output from battery charging. The car equipment is at 15 V so the alternator is clearly producing power.

when i unplug the new external regulator it drops back down to 11 plus volts in the car.
And when the VR is unlpugged, its not.
11 V seems low for just running an engine. Either there is a resistance in the line, or the battery is low.
(or there is some modification you haven't mentioned)


i have a dual field alternator. one goes to to the regulator the other i have tied in to the igniton wire on the regulator
from your description this is correct.
bypassed all the way to the ballast resistor for key on run hot

Not sure what you did here. Lets just check everything over
The alternator OUTPUT WIRE goes from the stud to the main splice.
The Regulator Sense Wire comes from the 'ignition 1' (aka run) circuit to the top corner pin on the regulator.
One Field Wire also comes from the 'ignition 1' (aka run) circuit.
The Other Field wire goes to the regulator corner pin.
For how it works, see "isolated field" alternator this post Identifying Chrysler Alternators (1960-1976)