Main Engine 4-Stroke · Main Engines (4-Stroke)
The Wärtsilä 14W46F is a 14‑cylinder, medium‑speed, four‑stroke marine diesel engine delivering up to ~16 800 kW for main propulsion, featuring common‑rail direct fuel injection and turbocharging with charge air cooling.
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| oil_change | 1000-1500 hours |
|---|---|
| fuel_filter_change | 500-1000 hours |
| air_filter_change | 1000-2000 hours |
| valve_overhaul | 12000-18000 hours |
| piston_and_cylinder_liner_overhaul | 20000-30000 hours |
| cylinder_liner_diameter | 0.5-1.0 mm overbore |
|---|---|
| piston_ring_gap | 0.5-1.5 mm |
| valve_stem_diameter | 0.1-0.5 mm reduction in diameter |
| crankshaft_and_camshaft_bearing_clearances | 0.1-0.5 mm increase in clearance |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
The class surveyor will typically check the engine's condition, performance, and maintenance records to ensure compliance with class and regulatory requirements, including verification of service intervals, inspection and maintenance records, and compliance with safety and environmental regulations.
Estimated lifetime: 30000-50000 hours
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