Alternator/Voltage Regulator problem

[timvasqz]

if there is a reading with engine off and key on, it may be a gauge
ground prob.
Greg 94ptCalif

--- In WanderlodgeForum@yahoogroups.com, "Stephen Birtles"
wrote:
>
> Check the regulator
>
> Stephen 77fc35
>
>
> --- In WanderlodgeForum@yahoogroups.com, "bbwlwb88"
> wrote:
> >
> > I am having an intermittent problem that started about 3 weeks
ago.
> > Sometimes, when starting the engine, my alternator pegs at
maximum
> > output (300 amps) and the coach batteries peg the gauge at
maximum
> > voltage charge (18 volts). The cranking batteries charge shows
only 12
> > volts when this happens which indicates to me they aren't
charging at
> > all . If I shut down and restart the engine several times, the
> > alternator and the charging voltage on the coach batteries and
engine
> > cranking batteries eventually will work correctly. Normally,
when
> > starting this coach, the engine starts and the alternator goes to
300
> > amps and then drops quickly to normal output (30 to 40 amps) and
the
> > coach batteries, as well as the engine cranking batteries, charge
at
> > their normal level (about 14 volts). The engine is a Detroit
Series 60
> > with the large alternator.
> >
> > I would appreciate information on what should be done to identify
and
> > correct this problem.
> >
> > Royal Washburn
> > '97 43'WB
> >
>