[Mgs] regulator?

[PaulHunt73]

Almost certainly the instrument voltage stabiliser.  If the system voltage 
were dropping far enough to make that much of a difference to the gauges 
there would be other symptoms as well, particularly lights and wipers.  In 
67 it also fed the electric oil gauge, but it wouldn't affect anything 
else - unless it shorted to earth and blew the green circuit fuse.  It's a 
heated bi-metal strip opening and closing a contact, hence an analogue 
device, so this is one of several modes of failure.

PaulH.

----- Original Message ----- 
>I noticed the gas gauge and the temperature gauge both tend to drift about
> a quarter of the way down from mid range and back again while driving. Is
> this the voltage regulator? Is it getting weak or is it a "works", "don't
> works" part? Or maybe it's not the regulator at all?