[C38] engine temp

[Bill King]

Bill,

When was the last time you cleaned out the heat exchanger?  You should do 
this every couple of years.  Take it off and remove the end plate.  Soak it 
in a 50/50 solution of muratic acid and water for about 30 minutes. Take a 
coat hanger and run it through the tubes, then flush everything with fresh 
water.  Make sure there is no broken zinc pieces plugging things up.

Engine should run at 165 - 180 degrees.  Other things to check would be the 
raw water inlet & pump and the thermostat.

You should also change the coolant in the fresh water system every 100 hours 
or so.

Bill King
Island Starr, Dana Pt. CA

----- Original Message ----- 
From: "William Knowles" <william_k_19810 at yahoo.com>
To: <listserve at catalina38.org>
Sent: Tuesday, July 10, 2007 11:54 AM
Subject: [C38] engine temp


> What is the normal operating temp for our unervisal
> engine? Last weekend I was running @ 1800 to 2100 rpm
> and engine slowly crept up to 210 to 225 f. Is this
> normal? We are pumping water and the impeller looks
> new. Would like to know your thoughts before calling
> in the  engine guys. I did not check the incoming
> filter as I could not get the plastic cover off and
> did want to break it away from home. Can I bypass the
> filter if I have to. Thanks in advance fior your help.
>
> Bill Knowles Flying Goose
>
>
>
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