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From digest.v7.n572 Tue Nov 11 16:21:06 1997
From: "Stephen P. Serafin" <serafin_at_pegasus.ece.utexas.edu>
Date: Tue, 11 Nov 1997 09:28:53 -0600 (CST)
Subject: <ALL> Alternator Repair
Greetings,
I have found, to my surprise, the BMW dealer to have the best
prices on quality parts (25% off list). That is until now.
My alternator went out the other day. Inspection and
disassembly revealed bad brushes and bearings. The regulator
was still regulating and the diodes were still semiconducting.
My FLAPS wanted $315 for a rebuilt, $51 for the regulator
which also houses the brushes, and could not get bearings.
The dealer wanted $66 for the regulator, and over $20 for each
bearing. That's still over $100 to rebuild it myself!
As I was contemplating what to do, I decided to remove the
bearings. Were they ever stuck! My gear puller method was
totally useless. I decided to take it to Rochester Auto and
Diesel Electric where they rebuild these professionally. They
were great. They worked on it while I waited (the owner said
the part I brought in would have ended up in the core barrel
otherwise). They replaced both bearings for $21, turned the
slip rings for $5, and sold me a new regulator for $15. So
now I have a rebuilt alternator for $46.68 including tax.
It looked like the original alternator that had never been
worked on before. Therefore I should now have another 175K mi
of life in the rebuilt alternator.
Stephen
Rochester MN
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