[C320-list] Dropping water temperature

[bruceheyman at cox.net]

Bruce,
Always good to finish an outing under sail power!
I think you are right that the thermostat is stuck open.  Before you take the thermostat out and put it on a pot on your stove to see what it is doing as you heat the water I would check to make sure there is plenty of water in the fresh water cooling system.  I don't think the sensors work in air.
Ofcouse the other option is that you had so many taking showers that the hot water heater was taking all the heat from the engine.
Bruce
Somerset 671 SoCal
Sent via BlackBerry by AT&T

-----Original Message-----
From: "Bruce Stumpp" <bstumpp at comcast.net>

Date: Mon, 8 Oct 2007 15:00:19 
To:<c320-list at catalina320.org>
Subject: [C320-list] Dropping water temperature


We motored home today at 2,800 RPM's for about 3 hours.  The temperature
gauge read 180 degrees for about 2.5 hours but the next time I looked it had
dropped to about 140-150 degrees.   I shut down the engine, was able to
catch a small breeze and used the motor just to get into the slip.   Engine
is a Yanmar.   I'm thinking the thermostat was stuck open.  Does anyone have
any other thoughts, suggestions or experience with this situation?

Bruce Stumpp
Adventure, #647 
Frog Mortar Creek, MD