It points to a high-resistance connection in the green circuit. As long as
the gauge is the only thing powered enough current can get through, with
only a relatively small amount of the system voltage dropped across the
fault. As soon as the indicators are turned on the greatly increased
current in the circuit drops much more of the system voltage across the
fault, leaving none for the gauges (or indicators).
If you are sure wiggling the fuse initially got the gauge back working
again, then take it out and clean it a bit better. On the MGB, at least,
the fuse holder part is rivetted to the spade part on the back of the fuse
block and this can corrode as well as the fuse to holder connections, and
the wire connector to spade connections..
----- Original Message -----
From: Neil Cotty <email@example.com>
Sent: Monday, January 03, 2000 8:10 AM
Subject: No Indicators
> Hi all,
> Happy New Year! Been driving the A a lot over the last few days, and she
> seems very reliable engine wise which is good news. Of course the Prince
> Darkness has struck now that the MOWOG gods have been appeased. Call it
> Jealousy. ;) My indicators stopped working last night on the way home.
> are the symptons:
> Initially, both the Fuel gauge and the Indicators stopped working. After
> wiggling the fuses, the Fuel gauge started working again, but the second I
> tried the indicators the Fuel Gauge went to zero! When I let the indicator
> off, the Fuel gauge popped back on! :) Possession of the highest order I
> suspect. <G> Bad ground? Right now, both the Fuel Gauge and Indicators are
> Any pointers?