Message-ID: <3F7BA08A.40411751@frontiernet.net>
Date: Wed, 01 Oct 2003 23:50:34 -0400
From: Jim Sower <canarder@frontiernet.net>
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: alternator choice?
References: <list-2610465@logan.com>
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Lynn,
What do the mounting ears look like on your Geo alternator?  Basically, there's one
really big, heavy ear on the front case, and alternatively there's small ears on the
front and rear case.  I don't like the "big" mounting ears for what I fancy to be
structural issues.  I think they can "wobble" more easily than the ones with two ears
wider apart.
And my mount bracket lends itself to 2-ear alternators ... Jim S.

Lehanover@aol.com wrote:

>
> The one I got from them for the race car is off some Japanese car, with a
> solid state regulator stuck on the side. I doubt if they manufacture any
> alternators at all, and may not even overhaul them. The one on my Geo was very small
> and looked like a good candidate. If you have a local rebuilder, he may have
> access to a solid state regulator. The advantage is that there is only one wire
> to connect from the alternator to the battery. (through a diode in case the
> alternator dies) So it cannot short the battery. Many modern alternators are
> internally regulated. Your rebuilder can label the connectors for you so you can
> install any number of them into any system. There are usually three wires or
> fewer. One is to activate the idiot light, and in some cases it does that by
> grounding that terminal when the alternator is operating. So the idiot light has
> to be powered up with the ignition switch. Others provide +12 when operating.
> Another terminal would go to switched +12 and the third goes to the battery
> (through a big diode).
>
> You don't need the connector plug from the car harness. Use insulated female
> spade connectors. Just push on to the male terminals in the alternator.
>
> I saw a permanent magnet alternator on a formula Atlantic car and was told it
> was rated at 20 amps. It was from a big garden tractor of some kind. Smaller
> than your fist. Running off of a 1/4" wide V belt.
>
> Lynn E. Hanover
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

--
Jim Sower
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T