Message-ID: <20040615183413.27651.qmail@web41307.mail.yahoo.com>
Date: Tue, 15 Jun 2004 11:34:13 -0700 (PDT)
From: John Overman <mooneydryver@yahoo.com>
Subject: Re: [FlyRotary] Re: Small alternator?
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-160300@logan.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii

--- Mark Steitle <msteitle@mail.utexas.edu> wrote:
> Jim,
> I went with the Geo Metro alternator.  It is about
> the size of a one pound 
> coffee can, but shorter.  It weighs about 5# and is
> rated around 55-60 amps 
> and is internally regulated (I converted it to
> external 
> regulator).  They're also used on many other small
> imports.  The only 
> differences I've seen is in the mounting portion of
> the housings.  The one 
> I bought has tabs which match perfectly to the Mazda
> water pump housing.
> 
> One more thing.  The pulley was only 2" diameter, so
> I used a Honda Prelude 
> power steering pump pulley which is 4" diameter.  My
> crank pulley is 5-1/2" 
> dia.  This will reduce the max alternator rpm's from
> > 20,000 to about 
> 10,500.  As you may have guessed, I'm running the
> 2.85 psru.  To use it, I 
> had to remove the teeth from inside the hub.  These
> are very cheap on ebay.
> 
> Let me know if you want to convert it to external
> regulation and I'll send 
> you a step-by-step on converting these.
> 
Hi Mark;
  I'm looking for an alternator also. would appreciate
your external alternator wiring info.
                     Thanks John Overman
                            Velocity RG
                            13B Turbo
                            Washington State


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