Finished up winterizing my I/O yesterday and one thing I think needs to be on my spring checklist is loosing coolant. It's a closed cooling system V8 marine engine.
The expansion tank seems to indicate I am loosing coolant after several test runs of the engine. It did pass a cooling system pressure test. So either I am loosing coolant or there is still air in the system and slowly it's working it's way to the expansion tank. The engine.was very low on coolant when I bought the boat as indicated by overheating in both exhaust manifolds.
So it did pass a cooling system pressure test. But at the same time seems to be loosing coolant.
In the spring I can pull the heat exchanger and have it cleaned and pressure tested.
What should be my game plan after that?
The expansion tank seems to indicate I am loosing coolant after several test runs of the engine. It did pass a cooling system pressure test. So either I am loosing coolant or there is still air in the system and slowly it's working it's way to the expansion tank. The engine.was very low on coolant when I bought the boat as indicated by overheating in both exhaust manifolds.
So it did pass a cooling system pressure test. But at the same time seems to be loosing coolant.
In the spring I can pull the heat exchanger and have it cleaned and pressure tested.
What should be my game plan after that?