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Re: Voltage too high

To: Dave Corbitt <DCorbitt77@comcast.net>
Subject: Re: Voltage too high
From: "John F Sandhoff" <sandhoff@csus.edu>
Date: Tue, 04 Oct 2005 19:13:05 -0700
> Seems like the alternator is full on all the time when engine revs are
> sufficient to generate enough current. I measure up to 17 volts going
> to the battery.

Youch.

You tried the first step: new regulator. For kicks, try running with the
regulator completely unplugged (easy: at the regulator. harder: at the
plug at the alternator). With no voltage going to the armature windings,
the alternator shouldn't be able to produce much output.

I suspect at this point that you have a short either internally to
the alternator or in the little 4-wire pigtail. I don't know if there's a
hot lead in the 4-wire pigtail, though, so perhaps there's a bare wire
inside the alt that's touching the rectifier plate.

-- John
     John F Sandhoff   sandhoff@csus.edu   Sacramento, CA




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