[NoVa-Corvairs] September meeting

[Bryan Blackwell]

On Sep 15, 2014, at 8:56 PM, daniel--- via Novacc-list <novacc-list at corvair.org> wrote:

> The tach: the reason why I think it's a mechanical issue (as opposed to electrical) is because the needle sticks at certain spots (I can get it to unstick by slapping the dash pad a couple of times).  Although I think it's accurate under 1,500 RPM, I've never seen it go north of 2,300.

Yep, that sounds like an issue with the gauge itself.
> 
> The temp gauge: this could be electrical because it works only intermittently.  Sometimes it doesn't move from 200 (the lowest number), while other times it pegs past 600 from a cold start.  Every now and again it seems to work.  I can go ahead and replace the thermistor just to rule it out.
> 
The thermistors aren't cheap and easy to break off in the head from what I've heard.  I'd check the wiring itself first, just in case it's a loose/shorting connection.  If that's not it then the thermistor sounds more likely than the gauge, it appears that the circuit is sometimes open (200), sometimes connected (works), and sometimes shorting to ground (>600).

Jim Simpson may be doing some investigation of temp gauges at the show, if you'd like he can probably check your gauge.

--Bryan