I had a similar issue on my Yanmar 3JH2E, and finally realized that the gauge
had been added on (though it may have been original equipment from C&C, it was
not standard Yanmar equipment). I found that the temperature buzzer sensor
screwed directly into the engine but the gauge sensor was teed in at the
thermostat where the water hoses left the engine to go to the water heater.
I as able to replace the sensor and the gauge with little fanfare. In my case,
the sensor had shorted internally, and was pegging the gauge, and when I
replaced the sensor, the gauge then wasn't working.
Hope this helps,
Bruce Whitmore
1994 C&C 37/40+ "Astralis"Madeira Beach, FL
(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net
From: Al Serrato via CnC-List <cnc-list@cnc-list.com>
To: C&C List <cnc-list@cnc-list.com>
Cc: Al Serrato <aserrat...@yahoo.com>
Sent: Friday, April 27, 2018 12:25 PM
Subject: Stus-List Engine Temp Gauge Not Working
I bought a 1981 34' with a 3GMD engine a few years ago. The temp warning buzzer
works but the gauge has never worked, although it is in place and wired.
The Yanmar manual has a section on testing the buzzer sender unit, but I don't
see anything about the location of the sender unit for the gauge or how to test
it.
Looking for any advice on how to approach diagnosing the problem. Is it the
same sender unit for both the buzzer and gauge? I haven't spent the time trying
to trace all the wiring but was hoping to find something in the manual first
about how the gauge is wired.
Thanks in advance for any help.
Al Serrato1981 C&C 34Senza FineSan Francisco Bay
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
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