The light should, well, light when first turning on the ignition and before
the engine is started, has it stopped doing this as well?
I have a schematic of the dynamo MGB ignition including warning light on the
web site below, might help, select 'Spanners', 'Electrics', 'Scematics' and
'Dynamo and Alternator'. Basically a white goes from the ignition to one
side of the bulb and a brown/yellow goes from the other side of the bulb to
the WL terminal on the control box and the D on the dynamo. Note that the
bulb holder does not pick up a ground from the speedo.
It does sound as if the batteries are not getting, or at least, not holding
a charge.
PaulH.
----- Original Message -----
From: Neil Cotty <neilc@apphosting.com>
To: <mgs@autox.team.net>
Sent: Wednesday, February 02, 2000 1:58 PM
Subject: Flat batteries again.
> Sigh,
>
> I tried to start the A (1600 Mk1) again today and yep the batteries are
flat
> again. When I tested the Dynamo, it appeared to be putting out around 14V.
> One anomaly tho. The car used to display the ignition warning lamp when
the
> revs dropped low like below 500rpm, now the light never turns on. This
> happened sometime round the time I removed the Oil/Temp gauge. I'm pretty
> sure it's not the batteries. They take a decent charge and turn over like
a
> champ for about a week/week and a half, then slowly die. Normally after a
> night run with headlights on. Recommendations?
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