Charging problems 67 Barracuda
Very first thing I'd check is the green field wire going from the VR to the alternator field. Might be shorted. These systems are incredibly easy to check out
Basic diagram:
And by the way that diagram came from MyMopar. If you need a service manual you can download one there free
Basically the VR must be grounded
On the old systems, one of the brushes is internally grounded
So ignition voltage feeds TO the VR, this is the same circuit feeding the coil ballast. Through the VR and out on the green field wire to the alternator.
======================================================
Take an alligator clip lead and unhook the green wire at the alternator. Clip your alligator to the exposed alternator field terminal, and run it over to battery, IE the starter relay big stud
Start and run, bring up RPM. Ammeter should show a charge
Check out the green field wire for shorts and continuity.
Very first thing I'd check is the green field wire going from the VR to the alternator field. Might be shorted. These systems are incredibly easy to check out
Basic diagram:
And by the way that diagram came from MyMopar. If you need a service manual you can download one there free
Basically the VR must be grounded
On the old systems, one of the brushes is internally grounded
So ignition voltage feeds TO the VR, this is the same circuit feeding the coil ballast. Through the VR and out on the green field wire to the alternator.
======================================================
Take an alligator clip lead and unhook the green wire at the alternator. Clip your alligator to the exposed alternator field terminal, and run it over to battery, IE the starter relay big stud
Start and run, bring up RPM. Ammeter should show a charge
Check out the green field wire for shorts and continuity.
