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Re: Chevy alternator

To: Terry and Donna Cost <tcost@vvm.com>
Subject: Re: Chevy alternator
From: "Patrick J. Horne" <horne@cs.utexas.edu>
Date: Wed, 2 Jan 2002 09:44:43 -0600 (CST)
Terry,

 Instead of a bypass fuse to keep your clock, etc maintained when you have
the battery disconnected, try a resistor. It will have to be low enough in
resistance to allow the clock (or radio presets) to maintain power, but
not low enough to run anything else. It has to have a high enough wattage
that hitting the key, or turning on the lights won't burn it out.

I'll be happy to work up the specs on the resistor soon, but not this
week.

Peace,
Pat

- Support Habitat for Humanity, A "hand up", not a "hand out" -

Pat Horne, Network Manager, Shop Supervisor, Future planner
CS Dept, University of Texas, Austin, Tx. 78712 USA
voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu

On Tue, 1 Jan 2002, Terry and Donna Cost wrote:

> I have a 1970 Impala alternator from Auto Zone on the driver's side of my
> engine.  It has the internal regulator.  You can take the thing apart and
> "clock" it to get the posts in the right position.  I use three or four
> washers and a longer bolt to line up the alternator, and I disconnected the
> stock regulator, running a wire straight to the + side of the battery, with
> a 30 amp fuse in the wire.  I had my old regulator harness ground out at a
> TDROC meet a couple of years ago, and it wasn't fused, so the wire on the
> backside of the alternator toasted the ammeter and several wires connected
> to it.  The wires from the alternator to the battery through the fuse box to
> the ammeter were not damaged. The ammeter became a very expensive fuse.  I
> bought another harness and put an additional 30 amp fuse on it.  I also
> bought a quick disconnect for the negative post on the battery.  It has a
> green knob you unscrew and cuts all current  in the car by removing the
> ground.  If you start to see smoke leap from the car, pull the hood release,
> open the hood, and twist the knob, all in one coordinated, synchronized
> motion.  Or do what I did when I didn't have the knob:  Sit and watch the
> smoke until a fellow TDROC'er shouts "You're on fire!"  Fall out the
> driver's door trying to get out, grope frantically for the hood release,
> search for a 1/2" (or 9/16") wrench, remove a hot terminal from a hot
> battery, then convince your friends that what happened fell under "routine
> maintenance".  By the way, the green knob is a most effective theft
> deterrent.  Take it with you when you leave the car and thieves can't start
> or run the car.  You can use a low amp bypass fuse to keep the clock and
> electronic gadgets going, but starter amps will pop the fuse and shut
> everything down.
>
> Leisure Suit Terry
>
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