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Message-ID: <20050313125240.58161.qmail@web51101.mail.yahoo.com>
Date: Sun, 13 Mar 2005 04:52:40 -0800 (PST)
From: Steve Brooks <prvt_pilot@yahoo.com>
Subject: Re: [FlyRotary] Re: Smaller Alternator
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: 6667
MIME-Version: 1.0
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Paul,
Thanks for the info.  Iy just goes to show you that
perceived quality isn't always correct.  With the
quality of the 13B engine, I guess that I just
"assumed" that the alternator was also high quality.

I'll deifinitely take a look around for a Geo
alternator.  I also read Todd's note that he had a 65
Amp version, so I may go that route, but I wish that I
knew what they weighed.  Maybe I can find a parts
store that has both, and find out before I get one.

Steve Brooks

--- Paul <sqpilot@bellsouth.net> wrote:
> 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
> > 
> 
> 
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