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MAN Generator (PrimeServ)

8-L23/30H GenSet

Auxiliary Engine (Generator Set) · Auxiliary Engines

Technical data from manufacturer or class sources · not yet verified by a person​‍​⁠​‌‌‍​​‍‌⁠​‍⁠⁠​⁠‌
1,360 kWPower
8Cylinders
225 mmBore
300 mmStroke

MAN Generator (PrimeServ) 8-L23/30H GenSet — Mechanical, 8 cyl × 225mm bore, 900 rpm, MGO/HFO, 1360 kW.

Specifications

Technical data.reference — unverified

Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.

ConfigurationL
Speed (rpm)900
Fuel TypeMGO/HFO
TechnologyMechanical
Power (kW)1360
Inspection

Inspector Detail ✓ verified

Common issues

  • Excessive cylinder liner wear due to poor fuel quality or inadequate maintenance
  • Fuel pump failure caused by contaminated fuel or worn components
  • Lubrication system leaks or blockages leading to engine damage
  • Cooling system issues resulting in overheating or corrosion
  • Turbocharger fouling or failure due to dirty air filters or excessive exhaust gas temperatures
  • Governor malfunction causing unstable engine speed or load
  • Crankshaft or camshaft bearing wear due to misalignment or inadequate lubrication
  • Exhaust valve seat wear or damage from overheating or corrosion

Inspection checklist

  • Cylinder head and valve condition
  • Piston and ring condition
  • Crankshaft and camshaft bearing clearances
  • Lubrication system oil level and quality
  • Cooling system temperature and pressure
  • Fuel system filter condition and pressure
  • Turbocharger condition and performance
  • Exhaust system condition and emissions
  • Electrical system condition and performance
  • Governor and control system function

Service intervals

oil_change400-600 hours
fuel_filter_change200-400 hours
air_filter_change100-200 hours
coolant_change2000-4000 hours
major_overhaul20000-30000 hours

Typical wear limits

cylinder_liner_diameter0.5-1.0 mm overbore
piston_ring_gap0.5-1.5 mm
crankshaft_bearing_clearance0.05-0.15 mm
camshaft_bearing_clearance0.05-0.15 mm
valve_clearance0.2-0.5 mm

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

Critical spares

  • Cylinder liners
  • Pistons and rings
  • Crankshaft and camshaft bearings
  • Fuel pumps and injectors
  • Turbocharger components
  • Governor and control system parts
  • Lubrication system pumps and filters
  • Cooling system pumps and heat exchangers

Safety

  • Risk of fire or explosion from fuel leaks or electrical malfunctions
  • Risk of injury from moving parts or hot surfaces
  • Risk of asphyxiation from exhaust gas leaks
  • Risk of electrical shock from faulty wiring or components
  • Risk of environmental damage from oil spills or coolant leaks

Class survey

The class surveyor will typically check the engine's condition, performance, and maintenance records to ensure compliance with classification society rules and regulations. This may include verification of service intervals, inspection of critical components, and review of maintenance and repair records.

Estimated lifetime: 30000-40000 hours

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