I'm very aware after 28 years of doing this how to test a system :-)
The question was posed because I am not the one that installed the
alternator; it was installed on a 80-y.o. friend's van in Georgia (800
miles away) so I cannot test and verify, I am just looking for possible
ideas of what they may have done wrong since I can't see it in person.

Karl

Jack R. wrote:
> Karl,
>
> Put a volt meter on your battery, while running you should see 14.5Volts...
> while off, it should be around 12.5Volts.