#Winterize inboard boat manual#

#Winterize inboard boat manual#

Check your owner’s manual for recommendations on which type of oil to use.

This is also a good time to replace your oil filter. Hot oil flows more easily, and any contaminants or impurities will be suspended, making it easier to remove them. This works best right after running the boat, while the oil is still hot. If you have an inboard motor, you should change the oil in your engine and transmission. Let the motor idle until you see antifreeze coming out of the exhaust outlet for at least 30 seconds.

For an inboard motor, take a large bucket of antifreeze (usually about five gallons) and insert the end of the water intake hose from the seacock into the bucket.

Let the engine run while connected to the antifreeze tank until the tank is empty. Leave your engine running after performing the fresh-water flush, disconnect your water hose, and connect a hose attached to a tank of antifreeze to your water intake instead.

If you have an outboard motor, you can connect an antifreeze kit to your engine’s water intake after flushing with fresh water.

The procedure will differ depending on whether you have an inboard or outboard motor.

Use the highest concentration of antifreeze available (-100). Antifreeze containing propylene glycol is environmentally friendly and recommended by nearly all manufacturers. Using antifreeze will prevent damage that can result from water freezing in your engine block. This will keep your boat's pistons from being subjected to air, dampness and other caustic materials when not in use.įlush your engine block with antifreeze. Put the plugs back in but do not connect the wires. Spin the engine by hand several times to coat the spark plugs.

Alternatively, if you have completely drained the fuel from your engine, you can remove the spark plugs and spray fogging oil directly into the spark plug holes.The engine will probably put out a lot of white smoke during this process. Continue spraying fogging oil into the air intake and allow the engine to continue running until it dies. Spray a generous amount of fogging oil into the intake, then disconnect the fuel line. For some types of engines, you can simply spray fogging oil into the engine air intake while it is running.Check your owner’s manual or engine manufacturer’s instructions to determine the best type of fogging oil to use and the proper procedure for fogging your engine. Coating the inside of your engine with fogging oil will help prevent corrosion. Fog the engine cylinders and carburetor intakes.