This bring back bad memories of my Yammer's demise about 10 years ago. 

Unknown to me then, either or both of these (sensor and gauge) failed or were 
incapable of measuring temperature without coolant when the coolant was very 
low.


Motoring along my engine died (just slowly quit running as though it was out of 
fuel). Long story short, the coolant was completely gone and my engine head was 
cracked 
from overheating. 


I am now ~ $10,000 poorer but a fanatic about making sure that my Beta 1005 cc 
replacement engine is properly cooled and that this proper cooling is reflected 
on the gauge!


Charlie Nelson
1995 C&C 36 XL/kcb
Water Phantom


cenel...@aol.com




-----Original Message-----
From: Bruce Whitmore via CnC-List <cnc-list@cnc-list.com>
To: cnc-list <cnc-list@cnc-list.com>
Cc: Bruce Whitmore <bwhitm...@sbcglobal.net>
Sent: Wed, May 2, 2018 6:02 pm
Subject: Re: Stus-List Engine Temp Gauge Not Working



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 Serrato
1981 C&C 34
Senza Fine
San Francisco Bay


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every one is greatly appreciated.  If you want to support the list - use PayPal 
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every one is greatly appreciated.  If you want to support the list - use PayPal 
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