[cfelton]

Well. I got to it today. Pulled the lower unit off and pulled the water pump apart. Everything looked good except for the impeller. It had some small slivers of rubber hanging off of it. Don't know what happened to it. It was installed correctly with plenty of lube. I took a piece of 5/8 rubber hose and attached it to the water pocket tube up in the upper section, removed the short hose between the heat exchanger and the riser and blew through it easily blowing all the water out of the heat exchanger. Put the pump back together with new gaskets and impeller and mated it back up to the upper unit. Filled it back up with oil and hooked it up to the water hose. Started it up and by the time I got to the back of the boat it was pumping like crazy! I guess the brand new impeller had failed. Its all good now!