Alternator Alternating current question

Yeah, thanks, that's what I meant. I thought the giant "ripple" could cause all that.

Interesting thing, although there is a huge AC voltage (33 AC volts !? measured separately with 2 different VOMs ) there is no AC leakage (0 mA measured with the VOM in line and in general there are no leakages anywhere in the system) which could mean that the diodes are not leaking. So it might be something else.

You mentioned a shorted stator ??