REFLECTOR: Carb Temp Gauge
Laurence Coen
lwcoen at hotmail.com
Sat Jan 1 12:44:04 CST 2011
John,
Since you can buy the Westach for under $140 complete with a probe that also
includes a warning light that isn't offered on the Mid-Continent, that's the
way I'd go for a replacement. That being said, you might have a ground loop
problem with the installation of the RMI unit. The fact that your CHT
readings were also unstable on the RMI is telling you something.
Larry Coen
N136LC
--------------------------------------------------
From: <aminetech at bluefrog.com>
Sent: Friday, December 31, 2010 9:10 AM
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Subject: REFLECTOR: Carb Temp Gauge
> I have a Mid-Continent carb temp probe installed and connected to my RMI
> monitor. In the past, readings were very unstable. For the past year the
> reading remained at the highest value (19 C). I ran new wires (16 ga per
> recommendation of Mid-Continent) and now the readings are back to
> unstable. I had unstable CHT readings also (RMI monitor) and after
> several unsuccessful attempts to correct this, I bought a new CHT gauge
> and that solved the problem. Now I'm thinking of installing a carb temp
> gauge as well. Mid-Continent recommends their gauge for the best results.
> It's pricey at $436.
>
> http://www.aircraftspruce.com/catalog/inpages/carbtempkit.php
>
> Westach has several, much less expensive gauges.
>
> http://www.aircraftspruce.com/catalog/inpages/carbAirTemp.php
>
> This one shows 9800 ohms in the description. The Mid-Continent probe
> reads 99 ohms at 20 C. I don't know if this is revelant or not. Can
> someone tell me if the Westach will work, or do I need the Mid-Continent
> gauge.
>
> Thanks,
>
> John
>
>
>
>
>
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