[PANAVIA]

I am a fan of the ford 3rd gen alts, they are basically 2 wire systems, I will post a writeup.

However to see if you are on the good side of the positive, here is my test.

Setup: engine warm at idle, 700RPM all electrical accessories ON ; headlights, fans, heater motor, stereo , foglamps.

---then disconnect the ground wire from the battery,

1. the headlights should not dim
2. engine should not change speed
3. you should get 12.79+V from the positive terminal of the solenoid and a good ground.

--Ideally I like to see 13.79+ in that condition, or by 1400 RPM.

if voltage us under 12.4V at idle, you are playing "Apollo 13" with amps and should upgrade the Alt/system.

--Steve