PLEASE HELP: Converting from External to Internal Voltage Regulated Altenator

[VetteVet]

Originally Posted by VBerg84

Vette Vet, your information and explanations here helped me to trouble shoot my own, external regulated alternator not charging issue. I formerly had replaced the alternator, bench tested the regulator (it was good), and finally decided that it had to be in the harness and rather than try to sort thru the cobbled mess I ordered and replaced the complete front end wire harness all the way up to the firewall. Having just recently completed some engine and interior work (fuel tank, sending unit, and refinishing the instrument cluster) I finally have it running again, only to find I STILL had a no-charge system. Using your detailed explanations I chased my way thru the system and in about a half and hour I found my issue. The cab side of the firewall electrical connector was missing the female lock terminal for the brown wire! I have spliced the new terminal in and will finish putting the fuse panel back together next weekend. I found your information very complete and useful. Thank you!

Good for you and you're very welcome. Thanks also to everyone who chimed in with great input and advice. VV