Cranks but won't start. Unplug ground at field spade on Alternator and it starts?
I measured 6 ohms between voltage regulator and alternator field terminals. So released tab and pulled terminal out of plastic housing at alternator end, moved terminal around, saw 5-10 ohms as I moved terminal around then settled at zero ohms and stays there as I move terminal end around? Connection visually looks good. So it had excessive resistance now it doesn't? Open circuit between field wire and ground.
I measured 6 ohms between voltage regulator and alternator field terminals. So released tab and pulled terminal out of plastic housing at alternator end, moved terminal around, saw 5-10 ohms as I moved terminal around then settled at zero ohms and stays there as I move terminal end around? Connection visually looks good. So it had excessive resistance now it doesn't? Open circuit between field wire and ground.