Mild Engine Overheat

On the way home from the boat yard after relaunch the engine over temp alarm was growling. Reducing the RPM silenced the alarm. At the slip I observed proper raw water flow out the exhaust and good coolant flow in the heat exchanger. The heat exchanger is 18 years old and is pretty cruddy so I'm going to replace it. Grant Ball advised installing a coolant recovery container to allow the heat exchanger to run completely full of coolant. This should reduce oxidation in the heat exchanger.

8/29/16 update: I installed a Doorman 54002 coolant recovery tank.

It fit nicely on starboard side of engine bay. About 2.5 feet of 5/16 ID fuel injector hose was used to connect it to the heat exchanger overflow port. I also installed new fresh air inlet hose on starboard side and removed a failed blower.

9/14/16
Today I picked up the new Sendure heat exchanger from Grant.

The bottom job was completed today and the boat re-launched.

Extreme Detailing sanded and painted the bottom as well as buffing the hull. Very minor filling was required on the tip of the keel. Bottom looks good.  The boat was hauled out and re-launched at Eau Gallie Yacht Basin, Melbourne FL with Grant Ball of Grant's Marine & Automotive driving the travel lift.

2016 Bottom job

2016 Bottom job begins today 8/10/16.

The slip was shallow so we had to disconnect the rear sling to get the keel over it. Grant Ball drove the boat lift thankfully. Then folks at the yard pressure washed the bottom.