stock alternator burns brushes

67Dart273 said

You may have burned some wires and have an in harness cross connect between wires. If you get the battery charged up, and wind the engine up to simulate highway cruise, what does the voltage run?

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The voltage will quickly go from batt V at strtup to 13.8/14v and even at idle will creep up to 15.5+and if you rev it off idle 1300/1500rpms then it will keep creeping up to 17/18V...Amp gauge reads high(normally 9/16 what it used to read, now 11/16to3/4 @ idle and a feather on the throttle will twist the needle at the end).Ran a jumper from alt. output connection to batt pos+ and amp gauge read normal...