[T2] discharge warning light

[c.dreike]

Robert,
In the older buses and bugs the generator light is often noticed to be 
glowing faintly. I have seen this on my old bus in years past, 
especially when I had the 6V generator in use. In ancient times there 
was much discussion about this on the list. As I recall, installing a 
silicon diode in series with the lamp would eliminate this ghost.  Being 
that your battery remains charged to a fair level, I would presume that 
your alternator is working well enough to provide charging current.

Chris
64DD Kamper Kit

On 5/15/2018 2:41 PM, Robert Mann wrote:
>        The Bosch 55A alternator on my '73, one of the first after the
> long-delayed departure from the superseded generator, was failing to
> charge, as indicated by the red discharge warning light showing continually
> (albeit dim at higher rpm).  After ascertaining that approx half of the
> slip-rings had worn away, and failing to find a reco'd or new alternator, I
> reinstalled the 45-y-old alternator.  The discharge warning remains as it
> was, prompting me to take on tour a mains-powered battery charger +
> extension lead to plug in at stopovers.
>        I have no ammeter nor voltmeter on the dash.
>        Now I find the battery is being held at 12.5 – 12.6 V after several
> runs incl brief uses of the starter motor.  I wonder whether, when the slip
> rings are only approx half complete, somehow the discharge warning light is
> tricked into remaining faintly on when actually a slight charge is
> occurring as intended for cruising with a fully charged battery.  The
> wiring diagram in the Bentley fails to enlighten an electroignoramus like
> me on this subtle Q.
>
> Robt Mann
> '73 1600dp Devon
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