The 'E' Type Forum

My observations of the ammeter on my 3.8 reflect what Chris is saying. I get about 1/4 scale deflection in either direction depending on supply/demand - no flicker, rock solid. Actually when I first bought the car the ammeter did flicker as you describe which was at odds with what I had observed on...

Well, I'm afraid I cannot agree that it is normal as stated above. ( The normal behavior should be that immediately after a start you will get a high rate of charge, which rapidly diminishes until it shows merely a trickle charge of perhaps 2-3 amps ). However, the spiking is very common, along wit...

The alternator was placed on all 4.2 Series I (and subsequent) E-types. The oscillation starts at 1200-1500 rpm. On startup, the ammeter shows slight discharge (normal), then as it picks up speed, the needle starts jumping. We have tried replacing the voltage regulator, replacing the alternator, ti...