Main Engine 4-Stroke · Main Engines (4-Stroke)
Ensuring reliable operation and longevity of your vessel's propulsion system is paramount. The Mitsubishi Heavy Industries SAV-TK is a powerful engine designed for demanding marine applications. This engine boasts a robust 701 kW output, achieved at 1940 RPM, making it a suitable choice for vessels requiring significant power. The SAV-TK features a 12-cylinder, 4-stroke combustion cycle with a mechanical direct injection fuel system and turbocharging. Certified under EPA standards for the 2000-2025 period, this engine falls under IMO Engine Category 1. Its design incorporates displacement of 2.83 liters per cylinder, allowing for efficient power generation. For optimal performance and reduced downtime, a comprehensive preventative maintenance program is essential. This includes regular inspections of fuel, lubricating oil, and cooling systems, as well as monitoring exhaust temperatures and bearing conditions.
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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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