I‘m assuming the 3GMD is similar to my 2GM20. If that’s the case, the reason is that the buzzer and the temperature gauge require different sensors screwed into the engine.
I replaced the buzzer sensor wit the temperature sensor because I’d rather use the gauge. I thought about using a Y-shaped pipe to use both, but never got around to it. You should be able to source the correct sensor locally. If you can’t, there’s a place called Lauderdale Speedometer in Fort Lauderdale, Fl., that has what you need. Jack Brennan Former C&C 25 Shanachie, 1974 Bristol 30 Tierra Verde, Fl. From: Al Serrato via CnC-List Sent: Friday, April 27, 2018 12:24 PM To: C&C List Cc: Al Serrato 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 -------------------------------------------------------------------------------- _______________________________________________ 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 to send contribution -- https://www.paypal.me/stumurray --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
_______________________________________________ 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 to send contribution -- https://www.paypal.me/stumurray
