Main Engine 2-Stroke · Main Engines (2-Stroke)
Regular maintenance and monitoring of key components are crucial for the reliable operation of the ESW Canada BESWN0645T1B engine. This 12 or 20-cylinder, two-stroke engine, designed for marine propulsion, was certified in 2011 under EPA standards and falls under IMO Category 2. It features unit injectors and turbocharging for efficient combustion and performance, delivering a rated power of 1680 kW at 904 RPM. Common issues include cylinder wear, fuel-injection faults, scavenge-air restrictions, exhaust-valve problems, bearing distress, and starting-air control issues. To address these, operators should carry spare parts such as fuel-injection components, seals, gaskets, filters, and starting-air valve components. Regular inspections should cover exhaust temperatures, cylinder lubrication, scavenge conditions, bearing temperatures, and fuel-injection equipment. The manufacturer's documentation provides specific guidelines for cylinder dimensions, rotational speed, pressures, clearances, temperatures, wear limits, and setting values.
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What our service work and the manufacturer documentation say about keeping this model running.
Trend cylinder exhaust temperatures, cylinder lubrication, scavenge condition, bearing temperatures, lubricating-oil analysis and shaft or engine vibration. Inspect scavenge spaces and accessible cylinder components for deposits, blow-by evidence, liner condition, broken ring debris and signs of hot spots or scavenge fire. Check fuel-injection equipment, starting-air components, cooling-water circuits, lubricating-oil systems and exhaust components for leakage and correct operation. Review crankcase and bearing-monitoring records and inspect thrust-bearing and shafting interfaces where accessible. A surveyor should verify alarms, shutdowns, overspeed protection, turning-gear interlocks, starting-air safety arrangements and emergency controls 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-injection components appropriate to the engine, cylinder-lubrication service parts, seals and gaskets, filters, starting-air valve or control components and essential pump spares. For critical ocean-going propulsion, the onboard spare scale commonly also covers selected cylinder-head or exhaust-valve parts, piston-ring and liner-service items, bearing-related spares and key sensors or control components, subject to the actual engine design. Use the manufacturer and class spare requirements for the exact inventory.
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