I'm using Coolerman's adaptor harness for installing an internally regulated alternator from a later vehicle into my '77. I had the alternator checked at the local Orileys to make sure it was charging.
I've triple-checked the tie-in of the adaptor harness to the factory harness. per Coolerman's instructions.
I have 12.3V across the battery with key off.
No volts at the alt IG terminal with the key off. !2.1V with the key on.
At idle the voltage at the battery is still 12.3. At 2K RPM the voltage is still 12.3 at battery and also at the alt terminal B.
The yellow wire from Coolerman's harness (terminal "L" used for a charging light?) has 12.3V at idle but increases to 13.7V at 2K RPM
Why is voltage increasing with RPM on terminal "L" but not on terminal "B"?
thanks for any help on this.
I've triple-checked the tie-in of the adaptor harness to the factory harness. per Coolerman's instructions.
I have 12.3V across the battery with key off.
No volts at the alt IG terminal with the key off. !2.1V with the key on.
At idle the voltage at the battery is still 12.3. At 2K RPM the voltage is still 12.3 at battery and also at the alt terminal B.
The yellow wire from Coolerman's harness (terminal "L" used for a charging light?) has 12.3V at idle but increases to 13.7V at 2K RPM
Why is voltage increasing with RPM on terminal "L" but not on terminal "B"?
thanks for any help on this.