[JimN]

I installed a CS alternator in my 65 and used the wiring diagram in the tech section to jump the original voltage regulator wires. My problem is that now my ammeter doesn't work. The needle is slightly on the discharge side even when the engine is running. The battery is being charged by the alternator (checked it with a volt meter) Any suggestions?

 

[Peter F.]

Did you change the main power wiring? Install a new main charging wire? That'd be the only problem I can think of. The origional harness is used as the current shunt for the meter.

Peter

 

[JimN]

I didn't change any of the original wiring. I jumped the brown and blue wire at the old voltage regulator and connected them to the alternator as shown on the wiring diagram. I notice when you turn on the headlights the needle on the gauge moves a little towards "D" but when the engine is running, the needle doesn't show any charging even after first starting the car. It shows a slight discharge condition at all times.

 

[John_Muha]

Just a passing thought that might not help anything. What happens if you move the sense wire? That's the red one from terminal 2 to the B+ terminal on the back of the alternator. Leave one end on terminal 2 but tie the other end to the horn relay terminal instead of the alternator. Leave the other wire on the alternator B+. I'm assuming one wire from the ammeter is on the horn relay.