Outdoor temp gauge sensor repair

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Mike Wilson
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Outdoor temp gauge sensor repair

#1 Post by Mike Wilson »

Posting for a friend...

Sometime back, there was a thread on repairing the sensor for an indoor/outdoor thermometer. I believe the company/individual was in the U.K. Does anyone remember the source? I tried a search of our threads and Googled the topic but came up empty.

Thanks in advance,

Mike
Mike Wilson
Lomita, CA
'63 B coupe

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John Brooks
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Re: Outdoor temp gauge sensor repair

#2 Post by John Brooks »

The sensor is a bimetallic thermocouple, I believe a type L or K. It is a spot welded small 2 wire circuit. Where the two dissimilar metal wires are welded together, the different metals make a small DC voltage at the junction. This voltage drivers the meter movement in the gage. The wire colors of the T/C are a industry standard. Look at your system, you can replace the sensor with a like type thermocouple. If the gauge is good, an new sensor will work fine. T/C circuits are relatively cheap and easy to fix.
John Brooks

62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965

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Mike Wilson
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Re: Outdoor temp gauge sensor repair

#3 Post by Mike Wilson »

Thanks, John. Much appreciated.

Mike
Mike Wilson
Lomita, CA
'63 B coupe

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