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mike griffith 07-13-2005 10:38:07 68.59.220.201 14988 Report to Moderator	I just bought an 1968 C10 custom. The boy had put a new alt. (4 wire) on. He must have done it wrong. My lights go dim at idle and will blow out when reved up. He is running from the alt.(4 wires) to the voltage reg.? doesn,t the alt. have it's own reg? Are there any wireing diagrams out there for a conversion from the old generator to a 4 wire altenator? any help would be of great help. thanks mike [Reply]  [Send Email]
Jon Hagen 07-13-2005 15:57:13 69.26.16.130 14993 Report to Moderator	Re: chevy altenator in reply to mike griffith, 07-13-2005 10:38:07   Any GM built between 62 and the early 70's would have an external regulator Delco alternator, no generator. yours sounds like it is running unregulated. The wiring from the regulator to the external regulator alternator are. With gen light 1 regulator F to alternator F 2 regulator 2 to alternator R 3 black ground wire goes to GRD stud on alternator case. 4 heavy power wire goes to BAT stud on alternator. With amp guage. 1 regulator F to alternator F 2 regulator 3 to ign switch 3 ground and hot lead,the same as the gen light wiring.   [Reply]  [No Email]
mike griffith 07-13-2005 19:07:00 68.59.220.201 14998 Report to Moderator	Re: Re: chevy altenator in reply to Jon Hagen, 07-13-2005 15:57:13   thanks Jon, you were totally correct. thanks to your reply and a quick trip to the parts store. I am on the road. YOU DONE GOOD Jon ! thanks again bud.. mike G.   [Reply]  [Send Email]