Main Engine 4-Stroke · Main Engines (4-Stroke)
The Caterpillar 8V3408 is a medium‑speed, V‑type 8‑cylinder diesel main engine delivering about 640 kW (≈860 hp) at 2300 rpm, primarily used for ship propulsion with flexible fuel options (MGO/HFO).
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| oil_change | 400-600 hours |
|---|---|
| fuel_filter_change | 200-400 hours |
| air_filter_change | 100-200 hours |
| coolant_change | 2000-4000 hours |
| cylinder_liner | 0.5-1.0 mm oversize |
|---|---|
| piston_ring | 0.5-1.0 mm gap |
| crankshaft_bearing | 0.025-0.050 mm clearance |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyors typically check for compliance with manufacturer recommendations, regulatory requirements, and classification society rules, including verification of maintenance records, inspection of critical components, and review of safety procedures
Estimated lifetime: 15000-20000 hours
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