Main Engine 4-Stroke · Main Engines (4-Stroke)
The Daihatsu 6LDC17A is a 6‑cylinder inline, medium‑speed diesel main engine delivering around 600 kW at up to 1 200 rpm, notable for its robust mechanical fuel‑injection system and flexibility on MGO/MDO/HFO fuels.
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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 | 0.1-0.5 mm clearance |
| exhaust_valve_seat | 0.5-1.0 mm recession |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyor typically checks for compliance with Tier 2 emissions regulations, proper maintenance and record-keeping, and condition of critical components such as cylinder liners, piston rings, and crankshaft bearings.
Estimated lifetime: 20000-30000 hours
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