OceanSphereENGINES

6LLH36LA

Main Engine 4-Stroke · Main Engines (4-Stroke)

Technical data from manufacturer or class sources · not yet verified by a person​‍​‍⁠‍​‌​⁠‍‍‍⁠‌‍⁠​‌​
3,600 kWPower
6Cylinders
360 mmBore
480 mmStroke

A medium‑speed 6‑cylinder inline diesel engine delivering 3 600 kW at 600 rpm, distinguished by its common‑rail fuel injection system and dual‑fuel (HFO/MGO) capability.

Specifications

Technical data.reference — unverified

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ConfigurationL
Speed (rpm)600
Fuel TypeHFO/MGO
TechnologyCommon Rail
Power (kW)3600
Inspection

Inspector Detail ✓ verified

Common issues

  • Fuel system leaks and blockages due to the Common Rail system's high pressure
  • Cylinder liner wear and scuffing caused by inadequate lubrication or fuel quality issues
  • Exhaust valve seat wear and overheating due to incorrect valve clearance or carbon buildup
  • Turbocharger fouling and surge caused by poor maintenance or low-quality fuel
  • Crankshaft bearing wear and damage from misaligned or loose engine mounts
  • Piston ring wear and sticking due to inadequate cooling or lubrication
  • Engine control system faults and sensor calibration issues

Inspection checklist

  • Cylinder head and valve condition
  • Piston and ring condition
  • Crankshaft and bearing condition
  • Fuel system leaks and filter condition
  • Turbocharger condition and compressor blade wear
  • Exhaust system condition and temperature
  • Engine control system and sensor function
  • Lubrication system condition and oil quality
  • Cooling system condition and temperature
  • Engine mounts and alignment

Service intervals

oil_change1000-1500 hours
fuel_filter_change500-1000 hours
air_filter_change1000-2000 hours
turbocharger_inspection5000-10000 hours
cylinder_head_overhaul20000-30000 hours

Typical wear limits

cylinder_liner0.5-1.0 mm wear limit
piston_ring0.5-1.0 mm wear limit
crankshaft_bearing0.1-0.5 mm wear limit
exhaust_valve0.5-1.0 mm wear limit

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Cylinder liners and piston rings
  • Exhaust valves and seats
  • Turbocharger components (turbine and compressor wheels, bearings)
  • Fuel injectors and nozzles
  • Crankshaft bearings and seals
  • Engine control system components (ECU, sensors, actuators)

Safety

  • High-pressure fuel system leaks and potential fire hazards
  • Exhaust system overheating and potential fire hazards
  • Rotating machinery and entanglement hazards
  • Electrical system faults and shock hazards
  • Lubrication system leaks and slip hazards

Class survey

Class surveyor typically checks engine condition, performance, and maintenance records, with particular attention to cylinder head and valve condition, piston and ring condition, and turbocharger condition

Estimated lifetime: 30000-50000 hours

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