Main Engine 4-Stroke · Main Engines (4-Stroke)
This engine operates on a four-stroke compression ignition combustion cycle, featuring six cylinders and direct fuel injection with electronic unit injectors. It is the AB Volvo Penta D13 (EPA family LVPXN12.8DCB), a 735 kW model, first introduced in 2020. It is categorized as a Category 1 engine by the IMO and designed for variable speed propulsion with a fixed pitch propeller, suitable for both recreational and larger engines above 37 kW. The LVPXN12.8DCB is turbocharged and boasts a total displacement of 12.8 liters. The engine has been tested and certified by the EPA, meeting the requirements for the MY2000-2025 period. Two test configurations, D13C2-A MP and D13C4-A MP, demonstrate its performance capabilities. The LVPXN12.8DCB operates at a speed of 2300 rpm, generating a torque range between 2984 Nm and 3295 Nm.
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Review operating trends for lubricating-oil pressure, coolant temperature, exhaust temperatures, load balance, crankcase condition and abnormal vibration or noise. Inspect filters, coolers, fuel equipment, valve gear, turbocharging equipment, mounts, flexible connections and safety shutdown devices in accordance with the installed configuration. Check for fuel, oil, coolant and exhaust leakage and verify that protective alarms and shutdowns are functional. A surveyor will normally look for evidence of disciplined maintenance, clean machinery spaces, leak control, intact guards and reliable safety functions. Use the engine serial number and manufacturer documentation for all exact wear limits, adjustment values and overhaul criteria.
Useful onboard spares typically include fuel-system service items, lubricating-oil and fuel filters, cooling-system seals, belts where fitted, valve-train consumables, injector-related service parts, sensors and common gaskets or O-rings. Critical spares should be selected against the exact engine serial number, installed emissions package and vessel redundancy; refer to the manufacturer parts documentation before ordering.
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