[6pack] Intermittent ground?

[fetnerj001 at hawaii.rr.com]

Hi Dave,

  Could be the 10V voltage stabalized screwed to the back of the speedometer has a poor ground.  The speedo needs to be grounded, usually with a black wire on one of the gauge case post thumbscrews.  The heater fan works off that circuit as well - check it for power.

Jeff
   
---- David Friedlander via 6pack <6pack at autox.team.net> wrote: 
> Hey all;
> 
> I have been trying to track down the gremlin that's keeping my fuel and
> temp gauges
> from working. I'll start up the car and those two gauges don't function
> (the voltage
> and oil pressure gauges work fine). After maybe 15 or 20 minutes of
> driving, they'll
> suddenly kick on and stay on for the rest of the trip. Some trips, they
> don't come on
> at all. But when one comes on, they both come on. Strangely, when they
> don't work,
> neither do my turn signals! I've spent the afternoon tracing wires for
> power (light
> green) and ground wires (green w/blue for temp gauge green and black for
> the fuel
> gauge). Getting to the gauges can be quite the challenge. Any comments?
> Faulty voltage
> stabilizer, perhaps? I've replaced that in the past...
> 
> Dave Friedlander
> '74 Six