Charging Issue

archerandethansdad said

So it's a 68 Barracuda with HEI ignition. It is a single field alternator and the test I tried I realize now is for the dual field alternators not single. I understand that I can briefly jump the field and the alternator output together to see if it will engage the alternator.

My voltage on the battery is 12.2 the voltage at the ignition post on regulator is battery voltage as well as the output on the alternator. This of course drops slightly when key is on.
With the car running and i test the field wire on the alternator it's at .10 volts same for the regulator.

Click to expand...

Then replace the regulator BUT BEFORE YOU DO THAT
Make CERTAIN the regulator is grounded and...........

Check the alternator field current draw.

Go to MyMopar and download a service manual. What you want to find out is whether the field has something wrong with it that is drawing too much current and burning up the regulator. This can be..........

Shorted green field wire from regulator to alternator field (this has happened!!)
Broken brush insulator allowing the insulated brush to contact the case
Shorted or partially shorted field winding allowing too much current