How to Winterize A Boat / Mercruiser / Alpha One

Introduction

Winterizing your boat is essential to protect it from the harsh winter conditions. This tutorial will guide you through the necessary steps to properly winterize a Mercruiser with an Alpha One drive, ensuring your boat remains in good condition until the next boating season.

Step 1: Gather Necessary Supplies

Before starting the winterization process, ensure you have all the required supplies on hand:

• Engine oil and oil filter
• Antifreeze (non-toxic)
• Fuel stabilizer
• Freshwater hose
• Tools for removing the drain plug and other components
• Clean rags

Step 2: Prepare the Boat

Start by preparing your boat for the winterization process:

1. Remove all personal items: Take out any gear, food, or other personal belongings.
2. Clean the interior and exterior: Wash the boat to remove dirt and debris, and dry it completely to prevent mold growth.

Step 3: Change the Engine Oil

Changing the engine oil is crucial for preventing corrosion:

1. Run the engine for a few minutes to warm up the oil.
2. Turn off the engine and allow it to cool.
3. Remove the oil drain plug and drain the old oil into a container.
4. Replace the oil filter.
5. Add new engine oil according to the manufacturer's specifications.

Step 4: Add Fuel Stabilizer

To keep your fuel system in top shape:

1. Fill the fuel tank to prevent condensation.
2. Add fuel stabilizer as per the product instructions.
3. Run the engine for about 10-15 minutes to circulate the stabilizer throughout the fuel system.

Step 5: Drain and Flush the Cooling System

Preventing freezing in the cooling system is vital:

1. Locate the drain plugs on the engine and remove them.
2. Flush the cooling system with freshwater using a hose. Ensure all water is drained.
3. Add antifreeze: Pour non-toxic antifreeze into the cooling system until it reaches the engine.

Step 6: Winterize the Drive

To protect the Alpha One drive:

1. Remove the drain plug located at the bottom of the drive.
2. Inspect the lower unit for any damage or wear.
3. Reinsert the drain plug after ensuring it’s clean and dry.

Step 7: Store the Boat Properly

Finally, proper storage is essential for winterizing:

1. Cover the boat with a breathable cover to protect it from snow and ice.
2. Store in a dry, sheltered area, if possible. If outside, ensure the boat is tilted to allow water to drain off.

Conclusion

Winterizing your boat is a straightforward process that can save you time and money in repairs come spring. By following these steps, you ensure that your Mercruiser with Alpha One drive is well protected during the winter months. Make sure to check your boat periodically throughout the winter for any issues.