Over charging alternator

[ronmarabito2002]

I lost my alternators back in October from an over charge rate.
Re-built just one of the units and it charged correctly until
yesterday (1400 miles since re-build) and went to 16 volts and 100
amps output again. The other alternator was not connected and has not
been re-built. I found out that this can be caused by loosing the
circuit,(Open circuit) such as, losing the connection of the battery
cable on the alternator. Anyone know of a similar case that would aid
me in troubleshooting this problem.

Since the alternator is the front unit under the bedroom floor on
my 92WB40, I do not intend to remove the floor till I get home. I've
disconnected the alternator and now running my generator and charging
from the battery chargers. Hate to put that many hours on the genset,
but don't want to waste time during this trip trying to find what's
causing this problem.

Give me any thoughts you might have.

R.E. (Ron) Marabito, Dallas, TX 92WB40
Currently in Tucson, AZ and will be attending the Lone Star Birds
Rally in Kinder, LA the 16th of Feb.