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I purchased and installed a smaller alternator for
my rotary powered SQ2000. It is an alternator for a 1995-1997 Geo Metro
automobile, and is 55 amps, and smaller than the stock Mazda alternator.
Fortunately, the width of the mounting ears and location of the tang where the
alternator adjustment bracket attach are in the same location. It looks
identical to the 1989 Mazda alternator, except for it's reduced size. It is 55
amps.
It came with a small
serpentine grooved pulley, so I removed that and installed the double grooved
pulley I got from Rusty. (Thanks, Rusty). Unfortunately, the pulley was concaved
on the rear and would rub against the alternator body, so I had to make a small
spacer to move the pulley just far enough away from the alternator case so it
would not make contact. Fortunately, there were enough threads left to install
the pulley. I also had to make a small sleeve to fit over the threads so that
the pulley had more contact area inside (so that it would be on the new shoulder
instead of against threads).
The only other change
necessary was the alternator mounting thru-bolt. The stock Mazda was 10 mm, and
the new alternator required an 8 mm bolt. I just went to CarQuest and got
a 10mm to 8mm valve guide and as you can see in the picture, that was the end of
that problem. Hope this is useful information to
someone....anyone...???
Paul
Conner
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