Seattle Mobile Diesel Boat Services
Mobile Marine Mechanic
Diesel Marine Engine Annual Services
Marine Diesel Yacht Services - Seattle
We come to you for annual diesel services: Oil / filter changes, Transmission oil, impellers and fuel filter Services.
1. We come to you fast!
Skip the hassle of moving your boat back and forth. We come to your boat at your dock, lift or yard.
2. We beat shop pricing
With lower overhead we're able to pass savings on to you.
3. High Quality Service
Our diesel mechanic has been servicing diesel powered boats for over 10 years.


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About the owner
I've been working on boats for 20 years. Boats are an important family activity here in the PNW. No one wants any downtime during our short summers. My goal is to maintain your boat's engine so you'll be ready to make those memories.
- Joe Ebsworth

Marine Diesel Annual Maintenance Saves Money
Cummins, Volvo, Perkins, Lehman, Detroit, Cat, Deere and other diesel engines. Serving Seattle & Puget Sound
As a marine diesel mechanic with years of experience here in the Seattle and Puget Sound area, I’ve seen firsthand the consequences of neglecting annual engine maintenance. I've dealt with catastrophic breakdowns and have had to deliver tough news to boat owners who put off maintenance for too long. Your diesel engine is the heart of your boat, and just like your own heart, it needs regular care to stay healthy and perform reliably. Skipping annual maintenance is a gamble – one that can cost you significantly more in the long run.
The High Stakes of Neglected Marine Diesel Maintenance
Marine environments are harsh. Saltwater, humidity, and demanding operating conditions put a tremendous strain on your diesel engine. Neglecting annual maintenance isn't just about inconvenience; it's about safety and preventing major, and often preventable, breakdowns. A seemingly small issue, if left unaddressed, can quickly escalate into a costly and potentially dangerous situation out on the water. That's where EbbTide Mobile Marine comes in, to help you avoid these situations.
The Annual Service Checklist – A Foundation for Reliability
"Most reputable diesel engine manufacturers, like Cummins, Volvo Penta, Perkins, Caterpillar (CAT), John Deere, and Detroit Diesel, provide a recommended annual service schedule. While the specifics may vary slightly depending on the engine model and operating hours, the core components of an annual service typically include:"
- Engine Oil & Filter Change: "Clean oil is the lifeblood of your engine. Over time, oil degrades, loses its lubricating properties, and becomes contaminated with soot and debris. Replacing the oil and filter annually (or based on recommended hours) ensures proper lubrication and helps prevent wear and tear on critical engine components."
- Fuel Filter Replacement: "Clean fuel is essential for efficient combustion and preventing damage to fuel injectors and pumps. Marine diesel fuel can be prone to contamination, so replacing the fuel filters annually is a must."
- Impeller Inspection/Replacement: "The impeller is a crucial component of your engine's cooling system. A worn or damaged impeller can lead to overheating, which can cause severe engine damage. Inspect the impeller annually for cracks, wear, or missing vanes. Replace it as recommended or if any damage is found."
- Coolant System Flush & Fill (if applicable): "Coolant protects your engine from overheating and freezing. Over time, coolant can become acidic and lose its protective properties. Flushing and refilling the cooling system as recommended helps prevent corrosion and ensures optimal cooling performance."
- Belt Inspection & Replacement: "Belts drive essential engine components like the alternator and water pump. Inspect belts annually for cracks, wear, or fraying. Replace them as needed to prevent breakdowns."
- Zinc Anode Inspection/Replacement: "Sacrificial zinc anodes protect metal parts of your engine from corrosion. Inspect and replace anodes as needed to prevent corrosion damage."
- Inspection of Hoses, Clamps, and Connections: "Check all hoses, clamps, and connections for leaks, cracks, or corrosion. Replace any damaged components."
- Battery Inspection & Testing: "Ensure your batteries are properly charged and functioning correctly. Clean battery terminals and check for corrosion."
- Visual Inspection for Leaks: "Carefully inspect the engine for any signs of oil, fuel, or coolant leaks."
- Aftercooler and heat exchanger service: A good time to check the condition of these very important components and to check zincs
Recommended Service Intervals: Finding the Sweet Spot
General rules of thumb based on my experience. Always refer to your engine manufacturer's specific recommendations. Generally a diesel engine is not hurt by being serviced often. In fact, it is better for it.
Here's a guideline:
- Low-Hour Recreational Use (50-100 hours per year): "Even if you don't reach the recommended hour interval, annual servicing is still crucial to address the effects of saltwater and inactivity. Oil can still break down due to the harsh environment." Service should happen annually or 100 hours (whichever comes first).
- Moderate Recreational Use (100-250 hours per year): "Follow the manufacturer's recommendations for oil changes and filter replacements, typically every 200-300 hours or annually, whichever comes first."
- Heavy Recreational Use (250+ hours per year): "Consider more frequent oil changes and filter replacements, especially if operating in demanding conditions. Regular engine monitoring is essential.
- Impellers: Recommend to change these every 1-2 years, but they are usually only rated for 300-500 hours
Why Choose EbbTide Mobile Marine for Your Seattle Diesel Maintenance?
As a mobile marine diesel mechanic serving Seattle and the Puget Sound, I understand the unique challenges boat owners face in this area. At EbbTide Mobile Marine, we bring the expertise and equipment to your boat, making annual maintenance convenient and hassle-free. I am dedicated to providing honest, reliable service and helping you keep your diesel engine running smoothly for years to come.
Get Ahead of Problems! Schedule Your Annual Service Today!
Don't wait until you're stranded on the water to think about engine maintenance. Contact EbbTide Mobile Marine today to schedule your annual diesel engine service in Seattle or the Puget Sound. Call us at 206-395-5249 or fill out the form above for a free quote.
Conclusion – A Final Word from Your Mechanic
Investing in annual diesel engine maintenance is an investment in the longevity, reliability, and safety of your boat. A well-maintained engine will not only provide you with years of trouble-free boating but will also hold its value better. Let EbbTide Mobile Marine help you protect your investment and keep you on the water where you belong.