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47silver 47silver is offline
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Join Date: Sep 2002
Location: Pittsburgh
Posts: 3,042
Garage
internal or external voltage regulator?

the external has 4 connecton points on the alternator
2 reds go to b+
black goes to df
2-browns go to d-
blue goes to b61

internal
2 reds to to b+
2-brown to d-
blue to b61

black is not connected.

check the wiring..
i
if not then diodes are bad
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1975 911S Targa
Silver Anniversary Edition
Old 09-06-2008, 08:00 PM
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