Generator Squeal and Voltage Fluctuations

[Kevin McKeown]

Greetings to all,

Driving home from a trip last week in the BB, I kept noticing that
my voltage gauge would fluctuate up and down, from as low as 11.3V
(I have a digital voltmeter) and up to 13.6 or so. This cycle would
take perhaps 30 minutes or so, and continued for the 3 hr trip. Is
this normal? If not, any ideas for a fix?

I also noticed a high pitched squealing noise (kind of scratchy
sounding, and not too loud) coming from the 8V92's generator when
the motor is running. Time for a new generator? Is this related
maybe to the voltage fluctuation? The generator now is a 120w
unit..if I replace it, should I go with a like unit, or a higher
capacity generator? Is it better to have this one rebuilt, or
exchange it for another? Any thoughts or suggestions appreciated..

Kevin McKeown
Yorba Linda, CA
1986 38' PT
8V92