1. Connect an ohmmeter between the Field terminal and the base of the regulator- - - -you should get close to zero resistance. Opening either of the spring-closed points will jump the resistance up to at least 2-3 ohms- - - - -they're wired in series.
Field to ground: 14 ohms closed. 32.6 ohms open.
No change to field ohms test.When Gen/Arm points are pressed.
GEN/Arm to gnd : Short to ground when closed. Bad point connection. Inconsistent measurements.
Generator itself is cooked too. .4 vdc from gen/arm. 1mv when field is grounded.
2. The coil behind the ARM terminal controls maximum amperage- - - -25-30 amps on most 6V systems. The one behind the FLD terminal controls max voltage against a fully charged battery- - - - -usually about 7.5 V. If the generator is OK, removing the wire at the FLD terminal and grounding it should make the voltage at the ARM terminal increase with engine RPM.
I'll give it a try when I reinstall it, but I think the regulator has a lot going on. I might just replace it.[u][/u]
Last edited by HawkX66; 03/19/2025 6:09 PM.
