Can I Pressure Wash My Outboard Motor?

After a few trips on the water, you might notice your trusty outboard motor isn't looking its best. Salt, grime, and who-knows-what-else can build up, leaving it looking dull. These substances can even affect your outboard’s performance.

One of the most common questions asked by new boat owners is, "Can I pressure wash my outboard motor?" The answer isn’t exactly cut and dry, so let’s take a deeper dive.

Is It Safe to Pressure Wash an Outboard Motor?

The short answer is: “Yes, but with caution.” Pressure washing can be a great way to clean your outboard, but you need to understand the proper technique and risks involved. Think of it like using any power tool – powerful, effective, and efficient when used correctly, potentially damaging if not.

Outboard motors are designed to withstand the elements, but they also have sensitive components like electrical wiring, seals, and sensors. A high-pressure blast of water can easily damage these parts, leading to costly repairs.

What Are the Benefits of Pressure Washing Your Outboard Motor?

When done right, pressure washing offers several benefits:

• Removes Salt and Grime: Saltwater is corrosive, and accumulated grime can trap moisture, which can accelerate the corrosion process. Pressure washing effectively removes these deposits, extending the life of your engine.
• Enhances Appearance: A clean engine looks great! It shows you take pride in your boat and helps maintain its resale value.
• Helps with Maintenance: Cleaning allows you to inspect your engine more thoroughly and identify signs of damage or wear.

What Are the Risks?

Pressure washing can cause costly damage to your outboard motor if not performed correctly. This includes damage to:

• Electrical Components: Water forced into sensitive electrical connections can cause shorts and malfunctions.
• Seals and Gaskets: High pressure can compromise seals, allowing water to enter the engine's internal components.
• Paint: Excessive pressure can strip paint, leaving your engine vulnerable to rust.
• Decals and Stickers: High pressure can peel off decorative decals.

8 Tips for Pressure Washing Your Outboard Motor

To safely remove substances, restore your outboard’s sparkling appearance, and minimize the risk of damage, follow these simple tips:

1. Use a Low-Pressure Setting: Start with the lowest pressure setting possible using a wide-angle nozzle and gradually increase if necessary.
2. Keep Your Distance: Maintain a safe distance – at least a few feet – between the pressure washer nozzle and the engine.
3. Avoid Sensitive Areas: Be extremely careful around electrical components, seals, vents, air intake, and exhaust. Avoid spraying directly into these areas.
4. Use a Mild Detergent: If water alone doesn’t do the trick, apply mild, boat-safe detergent with a low-pressure setting or a sponge.
5. Rinse Thoroughly: Ensure all soap residue is completely rinsed away.
6. Dry Completely: After washing, allow the engine to dry thoroughly. You can use compressed air, a leaf blower, or a soft cloth to speed up the process.
7. Inspect After Cleaning: After drying, inspect the engine for any signs of damage or water intrusion.
8. Consider a Professional: If you're unsure or uncomfortable, consider having a professional boat detailer or mechanic clean your outboard. They have the experience and equipment to do the job safely and effectively.

Follow these tips, proceed carefully, and use common sense to pressure wash your outboard safely and effectively. If you’re uncomfortable using a pressure washer, clean your outboard by hand or hire a professional with the experience to get the job done right and protect your investment!

If it’s time to replace your outboard motor or you have questions about maintaining your existing outboard, reach out to Online Outboards today.