Main Engine 4-Stroke · Main Engines (4-Stroke)
Medium-speed marine auxiliary diesel engines are commonly used on ships to power electrical generators and other critical systems. The Daihatsu 8LDC32 engine, featuring an L configuration with eight cylinders, operates at 750 RPM and delivers a power output of 4240 kW. This engine is designed to run on Heavy Fuel Oil (HFO) or Marine Gas Oil (MGO) and incorporates a Common Rail Tier III fuel injection system to meet stringent emissions standards. The bore and stroke dimensions are 320 mm and 400 mm, respectively, providing a robust platform for marine applications. Maintenance practices, such as proper fuel injection pump tappet adjustment and regular inspection of the cooling water pump, are crucial for optimal performance. Additionally, the engine's valve assembly requires careful handling to maintain critical tolerances, ensuring longevity and reliability in demanding maritime environments.
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| oil_change | every 400-600 hours |
|---|---|
| fuel_filter_change | every 200-300 hours |
| air_filter_change | every 100-200 hours |
| coolant_change | every 1000-2000 hours |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| cylinder_liner | 0.5-1.0 mm wear limit |
|---|---|
| crankshaft_bearing | 0.1-0.5 mm wear limit |
| piston_ring | 0.5-1.5 mm wear limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyor will typically check engine condition, verify proper maintenance and repair records, and inspect critical components for signs of wear or damage
Estimated lifetime: 15000-25000 hours
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