In this Outdoor Recreation video tutorial you will learn how to winterizing your boat engine block. For this you will need some screwdrivers, compressed air and a flexible hose if you have a hot water heater system on the boat. First you got to drain out all the water inside the engine. Remove the two plugs from the block and one plug from the sea pot as shown in the video and drain out all the water. Be careful and don't drop the seals while removing the plugs from the engine. While the water is draining out, remove the hot water heater, blow compressed air through it and remove all water from inside it. You can watch the video for the full instructions.