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-   -   alternator numbers (http://forums.pelicanparts.com/porsche-911-technical-forum/209893-alternator-numbers.html)

JAPPY 03-07-2005 04:13 PM
alternator numbers
 
I've got a '71 911E, basically stock & am having an ongoing problem keeping batteries charged & alive, might have something to do with not being driven enough. But can anyone tell me what my alternator/voltage regulator should be discarging at?

JAPPY 03-08-2005 12:26 AM
HELP, this must be easy for you guys!!

jmohn 03-08-2005 05:18 AM
If I understand your question -- your '71 should have a 55 amp alternator.

Jerrry M
'78 SC

jmohn 03-08-2005 05:24 AM
Perhaps I misunderstood your question, so here's another answer.

With the engine running at approx. 2000 RPM, put a VOM on the battery terminals, you should, at least, 13.5 volts (charging) on the VOM.

Jerry M
'78 SC


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