[C320-list] Overheating Problem

[Robert E. Sloat]

My 2002 320 has a Yanmar 3GM30F and the coolant temperature gauge reads 180
when motoring above 2000 RPMs.  Your gauge sounds like it is reading low or
there is a thermostat problem.  When I do the normal engine cool down (idle
for about 5-10 minutes) after motoring in at the slip, the coolant
temperature goes down to around 160.   At that point I shut down the engine.

Bob Sloat
Savannah 894
----- Original Message ----- 
From: <alahlm at comcast.net>
To: "Rick Onyshko" <rick_o at ameritech.net>; "C320-List"
<C320-List at catalina320.com>
Sent: Sunday, June 04, 2006 9:20 PM
Subject: Re: [C320-list] Overheating Problem


> Rick
>    I'm not sure but I think my engine runs at about 180 degrees your 150
sounds alittle low
>     AL ahlman
>       #476
>
> -------------- Original message -------------- 
> From: Rick Onyshko <rick_o at ameritech.net>
>
> > I have a 3 year old Yanmar 3YGM and had an overheat alarm go off on my
first
> > trip after the winter. I replaced the impeller, no missing vanes. It
seemed to
> > run at normal temp ~ 150 for over an hour. Today I took it out and had
it
> > idling while I dropped sails and put fenders out, and it did not
overheat but
> > the temp went up to about 170. Returned to 150 when I started moving
forward
> > and the RPM went up.
> >
> > Not sure if anyone has any ideas or suggestions, it has typically run
right at
> > 150 pretty consistently.
> >
> > Thanks
> >
> > Rick
> >