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Cooling System Blockage?
Model 5411, new to me Catalina '27. I am an amateur sailor as well as mechanic, so I need some hand holding...
When I bought the boat the cooling system was operating fine, with water discharging out the back. After running full throttle for 20-30 min water ceased to flow through the system. --Pulled the outlet hose from the water pump and confirmed a healthy flow when engine is running, so I know all is well from the sea water inlet to the block. --Pulled the hose from the thermostat to the exhaust and got zero flow. --Removed the thermostat entirely and got zero flow. I therefore assume there is some kind of major blockage happening inside the engine itself. Is there any other explanation? Is it reasonable that a blockage would impede 100% of the water flow? Assuming I'm correct, what is the best way to clear the obstruction? Can I some how "back flush" by pumping water into the top of the engine and draining at the bottom? I saw a video of a guy doing something similar using an electric drill pump. Thanks in advance for your thoughts. |
Tags |
blockage, cooling water stops, flush, water intake |
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