[V8] Alternator ailments

[MORRALEE David]

It sounds like the classic Voltage regulator . They are very cheap , go
for one that is set at least 14.5 V . You can replace the VR without
taking the alternator out of the car . But that is your choose.
Sueperdave  

-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf
Of Kneale Brownson
Sent: Tuesday, June 26, 2007 4:59 PM
To: 200q20v at audifans.com; v8 at audifans.com; quattro at audifans.com
Subject: [V8] Alternator ailments

Finally got a chance to test my charging system that started acting up
while we were in Columbus, OH, over the weekend but managed to get us
home.  
   
  With the engine off, the battery reads 12.5 volts.  Same reading for
the positive terminal post under the hood.
   
  With the engine running at idle (voltmeter in car reading ~12), the
reading with my multimeter is 12.17 at both the battery and the jump
post.  I presume that means the regulator ain't regulating properly, but
the dreaded wiring "weld" in the passenger footwell is passing on its
voltage without any resistance.
   
  Is it possible the "exciter" circuit (blue wire) would be the culprit?
_______________________________________________
Audifans V8 mailing list
Send posts to: mailto:V8 at audifans.com
Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
Have an Audi V8 question?  Check the Audifans Knowledgebase!
http://www.audifans.com/twiki/bin/view/Audi/V8
Have a V8 answer? ... Please help others by adding to the KB ... all
contributions welcome!