Should outboard motors be up or down when docked?

Outboard Motors: Up or Down When Docked? The Definitive Guide to Preventing Corrosion

The age-old question for boat owners: should your outboard motor be up or down when docked? The answer, while seemingly simple, has significant implications for the longevity and performance of your valuable engine. Neglecting proper storage can lead to costly repairs and premature wear, so understanding the best practice is crucial.

The short answer is: down. Keeping your outboard motor tilted down while docked is the superior method for minimizing corrosion and maximizing its lifespan. This seemingly minor detail makes a world of difference in protecting your investment.

The reasoning behind this lies in the mechanics of water drainage. When your motor is tilted up, the lower unit – the part submerged during operation – acts as a reservoir. Any residual water remaining inside, especially saltwater, becomes stagnant. This stagnant water is a breeding ground for algae, barnacles, and corrosive elements. Over time, this leads to rust, pitting, and other forms of damage that can severely compromise your motor’s functionality.

Conversely, when the motor is tilted down, gravity does its work. Water naturally drains from all cavities and passages within the lower unit, leaving it dry and relatively free from the elements. This simple act significantly reduces the risk of corrosion and prolongs the life of your engine’s components.

Furthermore, leaving your outboard motor tilted up can also expose internal seals and components to the elements, potentially leading to premature wear and tear. The consistent exposure to sun, wind, and rain can accelerate the deterioration of these vital parts.

Beyond the Basics:

While tilting down is generally the best practice, there are a few additional considerations:

• Rinse thoroughly: Regardless of whether your motor is up or down, always rinse it thoroughly with fresh water after each use. This removes salt, sand, and other debris that can accelerate corrosion.
• Regular inspections: Periodically inspect your outboard motor for signs of corrosion, paying close attention to the lower unit. Early detection allows for timely intervention and prevents minor issues from escalating into major problems.
• Storage environment: Even with proper tilting, store your boat in a well-ventilated area to prevent moisture buildup.

In Conclusion:

While convenience might tempt you to leave your outboard motor tilted up, prioritizing proper maintenance significantly outweighs any minor inconvenience. By tilting your outboard motor down when docked, you’re proactively protecting it from the damaging effects of stagnant water and environmental elements. This simple act can save you significant expense and extend the lifespan of your valuable investment. Remember, a well-maintained motor is a happy motor, ensuring many years of reliable performance on the water.