Main Engine 4-Stroke · Main Engines (4-Stroke)
The equipment category this falls under is marine propulsion systems. The Wärtsilä DWNFN218.341, introduced in 2013, is a powerful engine designed for constant-speed propulsion with variable-pitch and electrically-coupled propellers. It delivers a rated power of 2610 kW at 720 RPM and can handle up to 34614 Nm of torque. The engine family DWNFW218.341 operates on both diesel and LNG fuels, featuring turbocharging and advanced combustion technology. Common issues include poor combustion due to injector wear or fuel contamination, lubricating-oil pressure problems, cooling system deterioration, valve-train faults, fuel-system leaks, and bearing or coupling wear. Spare parts should include filters, seals, gaskets, injectors, and essential pumps. Regular maintenance involves checking running records for temperature spreads, inspecting for leaks, and examining various components according to the planned-maintenance schedule.
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What our service work and the manufacturer documentation say about keeping this model running.
Review running records for exhaust-temperature spread, lubricating-oil pressure, cooling temperatures, starting behaviour, vibration and abnormal consumption trends. Inspect for fuel, lubricating-oil, cooling-water and exhaust leaks and check the condition of flexible connections, mounts, foundations and coupling or gearbox interfaces. Examine filters, coolers, pumps, valve gear, injectors and accessible combustion components in accordance with the planned-maintenance system. Check crankcase condition, oil analysis and any available bearing or vibration monitoring for developing wear. A surveyor should verify alarms, shutdowns, overspeed protection, emergency stopping arrangements and guarding of moving or hot parts as applicable to the installation. For cylinder dimensions, rotational speed, pressures, clearances, temperatures, wear limits and setting values, refer to the manufacturer documentation for the exact figure.
Carry fuel-filter and lubricating-oil-filter elements, approved seals and gaskets, injector service or replacement components, valve-train wear parts appropriate to the engine, and service parts for essential pumps. Critical installations should also hold selected sensors, relays or control modules, starting-system components, belts or flexible elements where fitted, and manufacturer-recommended bearing or cylinder-head service items. The exact onboard spare scale should follow the manufacturer, class requirements, engine redundancy and the vessel's trading pattern.
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