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Remanufactured Units
I decided to go the remanufactured route. I found a 90-Amp alternator,
rebuilt by Beck-Arnley on eBay. Alternator label reads:
BOSCH
0 123 335 005
KC - 14V 45-90A
42 21 826
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Alternator Pulley
My alternator came with the pulley, so I did not have to deal with
the recessed 24-mm nut that holds it in place. Otherwise the pulley
must be removed from the old alternator, and installed on the new one. |
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Removing Cover for Inspection
The cover is attached by three phillips screws and plastic snaps.
To take it off, the nut at the positive terminal have to be removed, then
the screws holding the cover. The plastic snaps are unlatched
and the cover can then be pried up using a screwdriver. I decided
to take a look. |
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Voltage Regulator
The regulator and brushes are one assembly, held in place by two long
screws and washers. Replacing just this part seems like a good option
if the bearings work. |
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Slip Rings
On close examination, the slip rings did not look new. The dark
bands are the contact areas for the brushes, but the wear on the rings
seemed minimal. The voltage regulator also did not look new, but
new brushes had been installed in the regulator assembly. |
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Voltage Regulator Assembly
A new voltage regulator assembly consists of a ceramic carrier with
spring-loaded brushes installed on one side and the voltage regulator on
the other side. The contacts are crimped or soldered, and the voltage
regulator appears riveted. Unlike the alternator, there is no core charge. |
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Brushes
The Haynes manual specifies minimum brush length as 5 mm. The
brushes are crimped or soldered in and can be replaced if you find a brush
kit. The regulator seems to be attached to the ceramic holder by
rivets and does not look easily removable. Regulator label reads:
BOSCH
1 197 311 214
EL 14V
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References:
Haynes 5A-8.3-5
Saab EPC 3A-0180 |
Part Numbers and Prices
Regulator w. brushes |
#4737151 eEuroparts.com |
$ 73 |
Rebuilt alternator |
#AL0037X eEuroparts.com |
* $184 |
OEM alternator |
#5246871 genuinesaab.com |
* $408 |
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*not including core charge |
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