Voltage drop at ballast resistor

Mattax said
Where ever the voltage dropped when current was run through it. Ignoring whatever variations there are in the readings, there was a .5 Volt drop between the relay and the whereever you read it on the bulkhead, and another .3 Volt drop to the ammeter. Since that wire is warm its more suspect.

Then there's a 1 Volt drop between the Ammeter and the run wire connection at the bulkhead.

The .4 Volt drop to the alternator's stud makes no sense unless there's a short inside. If there was a short inside, it should have shown up in the measurements with the ignition off.

View attachment 1715165836

Paladin06 said
Disregard this last comment. The voltage is the same through the fusible link to the bulkhead connector. I still am not getting any reading at the black wire to the bulkhead connector. Been messing with this thing since 0700 this morning. My back is killing me. Going to take 2 oxy and chill.

Thx all.

After cleaning the corroded fusible link connection I now have the same 12.3 volt reading at the bulkhead connector, the starter relay and the battery.