Sailing things right

So, there were three long days of fixing the engine.
The trouble was the overheating. And it seemed like the engine was unable to push salt water through the heat exchanger: a tiny amount of water went out and the impeller bearing was leaking, which happens almost always just because of the excessive pressure in the unit.
Complete disassembly of the cooling system revealed that the boat engine was serviced by His Majesty the King of all gays in the Universe. This prick replaced the remnants of the old impeller with another one and said nothing to the owner, just waiting for the engine to overheat. And when it started failing, just issued a quote for a major engine repair for 7000 euros.
I checked the engine before starting my trip and it was okay-ish. Seems like rubber pieces fell down and unclogged the system a bit but during extended operation the system clogged back and I've got what I got.
Now everything is absolutely fine and I'm free to go.
Planning to start tomorrow evening.