Main Engine 4-Stroke · Main Engines (4-Stroke)
Marine engineers and operators rely on reliable auxiliary engines to ensure the smooth operation of their vessels, especially in demanding maritime environments. The Daihatsu 6LDK36 is a robust medium-speed marine auxiliary diesel engine designed for high-power applications. With a power output of 3600 kW at 720 RPM, this six-cylinder engine features a common rail Tier III technology and operates on Heavy Fuel Oil (HFO) or Marine Gas Oil (MGO). Its bore and stroke dimensions are 360 mm and 480 mm respectively, providing a reliable and efficient power source for various maritime needs. The engine's specifications are derived from verified workflows and are supported by extensive technical documentation and supplier listings. However, it is important to note that some details like the bore and stroke measurements for the DK-32 series are inferred based on naming patterns and require further official verification. Additionally, regular maintenance is essential to prevent common failures such as loosening of the fuel injection pump tappet adjustment screw and wear on the exhaust valve guide and spindle, as highlighted in Daihatsu technical bulletins.
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| oil_change | every 1000-1500 hours |
|---|---|
| fuel_filter_change | every 250-500 hours |
| air_filter_change | every 500-1000 hours |
| injector_nozzle_replacement | every 2000-3000 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 |
|---|---|
| piston_ring | 0.5-1.0 mm wear limit |
| crankshaft_bearing | 0.1-0.5 mm wear limit |
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 III emissions regulations, proper maintenance and record-keeping, and verifies that all critical systems are functioning properly
Estimated lifetime: 20000-30000 hours before major overhaul
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