[C320-list] Water Temp warning light

[Chris Burti]

All engines that have gauges or alarms have sensors to trigger the
alarms or run the gauge. It is not uncommon for those to go out after
10 years or so. Pretty cheap to replace. It will appear as a roundish,
quarter-diameter x 1/2" thick plug sticking out of the engine block,
usually near the front or back with two wires the same color as on the
light or gauge.

Old school troubleshooting: Look for these two wires in the engine
compartment in the vicinity of the block. unscrew the sender and
coolant should dribble out...plug the hole and take to a tractor
repair  facility or a really good auto parts store and buy a
replacement.

New school: google the engine model and engine coolant temperature
sensor.  Then buy the part and replace without needing to plug the
hole.



On Mon, Jul 9, 2012 at 3:51 PM, Karl Mielenhausen
<kmielen at suddenlink.net> wrote:
> Marko,
>
> It would be helpful to know which engine you have.
>
> I suspect your impeller has broken/missing vanes.
> Was it inspected this spring before commissioning?
> Was it removed during winterization? (They can take on quite a "set" over
> the winter, to the point where the vanes fracture upon start-up.)
> If the impeller checks out, you may have a partially fouled heat exchanger.
> Here are some Mainsheet references to a hot running engine....
> http://www.catalina320.com/article.php?story=20100117205621921
> http://www.catalina320.com/article.php?story=20090718083201878
>
> Karl Mielenhausen
>
>
> On Mon, Jul 9, 2012 at 10:12 AM, Marko Jamnik <mjamnik at markocreative.net>
> wrote:
>>> Things just keep happening. One way of keeping me on my toes.
>>
>> Ventured out for a sail the other day and everything was working normal,
> the engine started, water was circulating through the engine.
>> Twenty minutes under power my water temp light came on as well as the
> alarm. The gauge was a normal 80c, the coolant was full, the impeller was
> changed two years ago with 44 hours on the new one. My intake filter is
> clear. I ran the engine for approximate 30 minutes gauge still reading 80c
> and then I decided time to shut it down. I let it cool down and then tried
> it again hoping it was a temporary thing.
>> I would appreciate any other options I may have over looked. With the
> gauge being normal I ruled out the thermostat.
>>
>> Mark
>> Lake Ontario
>> #304



-- 
Chris Burti
Farmville, NC