[C320-list] Overheating Engine

[Donald Lawson]

Joe
I sail/motor in  heavy kelp and eel grass infested areas. Clogs my intake thruhull and filter and destroys my impellers.  I start at the thru hull, intake filter and lines to the pump. If all clear pull the output line off the pump, turn engine over and check pump output. If good then go to the elbow in the exhaust riser, it might be plugged. If all of that is good then???
Don #1005
On Jul 5, 2011, at 7:01 PM, Joseph Aberdale wrote:

> Today I started the Yanmar engine in my 2002  C320 and the overheating light and alarm went on. I discovered that engine cooling water was not being discharged from the hull but you could see the discharge of air. Further investigation revealed that water was being drawn in through the intake and getting to the engine. Is the likely problem the water pump? I recently installed a new impeller and the engine ran well after that. How do I determine if the water pump is bad?
> 
> Also, I cannot get water to run out of the galley and bathroom faucets. The tanks are filled and I can hear the water pump operating but do not get any running water. Any thoughts on how I should proceed from here?
> 
> Thank you very much.
> 
> Joe
> #908
>