Alternator stops charging at 2500 rpm?

[michael.leach at lmco.com (Leach, Michael)]

At idle the cars voltage is fine at 13 volts.   Raise the rpm to 2500 and
the alternator cuts out.  I am sure that the belt is tight but I guess the
AC compressor belt could be a little loose...or is it the regulator?

Anyone ever see this before?  I had to drive to work this morning at 55 mph
so I would not break 2500 rpm....what a PITA!!!  It is an auto-passat in
case you start to do RPM to speed calculations.

Thanks

Michael Leach
MH-60R Integration and Test
Lockheed Martin Federal Systems
Owego, NY 13827
607-751-7542
FAX 751-6198
michael.leach@lmco.com <mailto:michael.leach@lmco.com>