"I operate my 120 hp oceanrunn
"I operate my 120 hp oceanrunner in very dirty water and am thinking of creating an enclosure around the lower unit supply to provide clean water. I never run the engine above 2000 rpms in this mode. What gpm does the water pump need to provide water to the power head at this speed. Also, how can I clean out the water cooling system to remove crud that may have already built up?"
"I operate my 120 hp oceanrunner in very dirty water and am thinking of creating an enclosure around the lower unit supply to provide clean water. I never run the engine above 2000 rpms in this mode. What gpm does the water pump need to provide water to the power head at this speed. Also, how can I clean out the water cooling system to remove crud that may have already built up?"