Main Engine 4-Stroke · Main Engines (4-Stroke)
The Wärtsilä 5LW46F engine operates on a 5-cylinder, 4-stroke configuration with each cylinder delivering 1200 kW at 600 rpm. Designed to handle heavy fuel oil (HFO) and diesel oil (MDO), the W46F family has been in production since 2004, with over 7.2 million operational hours under its belt. Known for its robust design, this engine features direct injection and a turbocharger equipped with water-cooled air intake. Common issues include corrosion-related failure of exhaust valves due to poor fuel quality, which can cause all four valves to fail simultaneously; damage from turbine fragments resulting from valve failures; and cylinder liner wear requiring regular inspections every 4-8 weeks. Regular monitoring of piston crown height is also essential to prevent premature wear on the engine components.
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