keep in mind that the coolants in two systems are different. If you have a raw water cooled engine, the system has to work below the boiling point (usually around 90-95 C); if you have the fresh water cooled engine, the inside system runs hotter (around 102 C), because it is a bit pressurised not to mention that it uses an antifreeze.
Marek (in Ottawa) From: Josh Muckley via CnC-List Sent: Wednesday, May 21, 2014 11:43 PM To: C&C List Subject: Re: Stus-List Yanmar 3QM30 thermostat for converted system Why change? Just let the engine run cooler. Josh Muckley 1989 C&C 37+ S/V Sea Hawk Solomons, MD On May 21, 2014 2:07 PM, "PME via CnC-List" <cnc-list@cnc-list.com> wrote: Hi, I am converting Yanmar 3QM30 raw water cooling system into a fresh water cooling system with a Sen-Dure heat exchanger. The current thermostat is Yanmar part number 105582-49200. The fresh water thermostat listed for the 3QM30F looks like a completely different size thermostat. Does anyone know the Yanmar part number for a fresh water (i.e. higher temperature) thermostat which will fit a raw water 3QM30 system? Thanks for any help. - Paul E. 1981 C&C Landfall 38 S/V Johanna Rose Carrabelle, FL _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -------------------------------------------------------------------------------- _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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