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From: "Paul" <sqpilot@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-790245@logan.com>
Subject: Re: [FlyRotary] Re: Smaller Alternator
Date: Sat, 12 Mar 2005 11:50:15 -0600
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Hi, Steve... unfortunately, I did not weigh the Geo alternator, but it is 
definately smaller and lighter (probably by about 1/3 lighter).  After 
having my stock Mazda alternator fail because the plastic inside broke and 
the screw got jammed into the field windings, then having it rebuilt by the 
local alternator rebuilder who said the insides were cheap and poorly 
constructed, I decided to give it another try. Two weeks later, the 
alternator started overcharging.  That was it's last chance.  Two strikes 
and you're out.
    The Geo alternator looks identical, even the casting has the same number 
of vent holes, same mounting tabs, same connector plug, etc.  A carbon copy 
except for it's size. I wouldn't be surprised that they are both from the 
same manufacturer.  Paul Conner

----- Original Message ----- 
From: "Steve Brooks" <prvt_pilot@yahoo.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, March 12, 2005 7:30 AM
Subject: [FlyRotary] Re: Smaller Alternator


> Paul,
>
> Very nice.  I'd heard before that t was [possible to
> mount the Geo alternator on the 13B, but I hadn't ever
> obtained one. I also "feel" that the Mazda is more
> reliable, but that is just based on knowing how GM
> cuts corner, especially on low end cars.
>
> I'm curious if you weighed the stock alternator, and
> the Geo, to see how much weight difference there is.
> I'd be prone to change just for the weight loss.  55
> amps would be more than enough.  I've never seen more
> than about 40 amps after start, and that is just for a
> few seconds.  Normal running current seems to be in
> the 13 amp range, with just engine and GPS/Comm.
> CUT by Paul Conner
>