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Motorola SEV regulator with Bosch alternator?

posted by  Lord Volvo on  Sun Oct 16 21:45 CST 2011
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last visit: Sat Oct 4 15:55 CST 2014
[RELATED]

I have the Bosch AL77X alternator, but it is hooked up to a Motorola SEV voltage regulator. This is not kosher, correct? I assume I should get a Bosch regulator instead?

I've discovered a low-charging situation on my 142. While running, the charging system is barely putting out 12 volts according to what I'm reading across the battery terminals. I removed, cleaned and greased cables for the battery, chassis and engine grounds, voltage regulator, alternator cables, and distribution block. No improvement. Next I'll check the brushes in the alternator. The fan belt seems a bit loose but the alternator's pulley is maxed out; maybe it has a belt that's too large. I'll try to find a smaller belt. If any of those changes don't merit any results, I'll assume that either the regulator is bad or the alternator is.


--
Mike F - 1984 244 DL - 317,000 miles
Original engine, transmission, drive train, starter
Undergoing reconstructive surgery with POR-15

1972 142 S - The Yellow Brick - 135,000 miles
All stock except for Weber Carb. B20B engine. M40 tranny. 0 - 60 whenever the hell it feels like it.






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