Main Engine 4-Stroke · Main Engines (4-Stroke)
Keeping a marine engine running smoothly demands constant attention to detail and preventative maintenance. The Wärtsilä 9W26 is a powerful engine designed to meet these demands with a robust build and a focus on reliability. This 9-cylinder, in-line engine boasts a displacement per cylinder of 17 liters, a bore of 260 mm, and a stroke of 320 mm, churning out 3150 kW of power at 1000 RPM. The 9W26 is fueled by heavy fuel oil, marine diesel oil, or gas oil and utilizes a common rail technology for precise fuel injection. The engine is turbocharged with an intercooler, ensuring optimal performance. While production of the 9W26 was discontinued around 2010, the engine's legacy continues with approximately 720 units manufactured since its redesign in 1996.
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| oil_change | 400-600 hours |
|---|---|
| fuel_filter_change | 1000-1500 hours |
| air_filter_change | 500-1000 hours |
| cylinder_head_overhaul | 12000-15000 hours |
| major_overhaul | 30000-36000 hours |
| piston_rings | 0.5-1.0 mm wear |
|---|---|
| cylinder_liners | 0.5-1.0 mm scoring |
| exhaust_valves | 0.5-1.0 mm seat wear |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyor typically checks engine performance, fuel consumption, and emissions, as well as inspecting critical components such as cylinder heads, pistons, and turbochargers
Estimated lifetime: 30000-36000 hours
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