[C320-list] Yanmar issue

[Utility Email]

Mine runs regularly at 155 degrees in cold 50 degree Puget Sound. 

David B. Swanson, P.E., S.E.
Principal, LEED AP
Director, Structural Group

Reid Middleton, Inc.
(425) 741-3800 office
(425) 741-5011 direct
(425) 508-7971 mobile

www.reidmiddleton.com

> On Apr 22, 2014, at 7:09 PM, <clburti at gmail.com> wrote:
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> I don’t know why those maintenance tasks would make it run 20 degrees cooler, but ours has always run at about 165 degrees.
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> Fair Winds
> Chris Burti
> Commitment
> Catalina 320, #867
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> From: dprudden at comcast.net
> Sent: ‎Tuesday‎, ‎April‎ ‎22‎, ‎2014 ‎9‎:‎22‎ ‎PM
> To: 320
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> Just finished getting the 3gm30f ready fir the summer. I changed the oil,all filters, impeller, mixing elbow, belts, thermostat and flushed and changed the coolant. I had the heat exchanger ultrasonically cleaned and replaced the gaskets (yanmar has a new distributor and the bar gaskets on the exchanger now need to be cut to fit...the don't give you the right length anymore).
>  So here's the question-I ran the engine today for 1/2 hour, using cold tap water to circulate for raw water. The engine wouldn't heat past 165 degrees.  Last year the temp was a steady 185. Would the maintenance I performed, especially the heat exchanger cleaning (which wasn't bad before the cleaning), cause her to run 20 degrees cooler? Could cold tap water just make it tough to get hot? 
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> Thanks for any suggestions.
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> David Prudden
> #787