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MAN Generator (PrimeServ)

8-L21/31 GenSet

Auxiliary Engine (Generator Set) · Auxiliary Engines

Technical data from manufacturer or class sources · not yet verified by a person​‍​⁠​‌‌‌‍⁠‌‍⁠‍‌‍‍‌‌⁠
1,760 kWPower
8Cylinders
210 mmBore
310 mmStroke

MAN Generator (PrimeServ) 8-L21/31 GenSet — Common Rail, 8 cyl × 210mm bore, 1000 rpm, MGO/HFO, 1760 kW.

Specifications

Technical data.reference — unverified

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ConfigurationL
Speed (rpm)1000
Fuel TypeMGO/HFO
TechnologyCommon Rail
Power (kW)1760
Inspection

Inspector Detail ✓ verified

Common issues

  • Fuel system leaks and clogging due to poor maintenance or dirty fuel
  • Excessive wear on piston rings and cylinder liners caused by inadequate lubrication
  • Common Rail system faults resulting in poor engine performance and increased emissions
  • Turbocharger fouling and failure due to inadequate maintenance and cleaning
  • Crankshaft and camshaft bearing wear due to misalignment or poor lubrication
  • Exhaust valve and seat wear caused by overheating or poor maintenance
  • Cooling system leaks and corrosion resulting in engine overheating

Inspection checklist

  • Check fuel system for leaks and clogging
  • Inspect piston rings and cylinder liners for wear
  • Verify proper operation of Common Rail system
  • Check turbocharger for fouling and damage
  • Inspect crankshaft and camshaft bearings for wear
  • Check exhaust valves and seats for wear
  • Verify proper cooling system operation and check for leaks
  • Check engine mounts and vibration dampers for wear
  • Verify proper operation of engine control system

Service intervals

oil_change400-600 hours
fuel_filter_change1000-1500 hours
air_filter_change500-1000 hours
coolant_change2000-3000 hours
turbocharger_inspection1000-2000 hours

Typical wear limits

piston_rings0.5-1.0 mm wear
cylinder_liners0.1-0.5 mm wear
crankshaft_bearings0.1-0.5 mm wear
camshaft_bearings0.1-0.5 mm wear
exhaust_valves0.1-0.5 mm wear

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

Critical spares

  • Piston rings and cylinder liners
  • Crankshaft and camshaft bearings
  • Exhaust valves and seats
  • Turbocharger components
  • Common Rail system components
  • Fuel injectors and fuel pumps
  • Engine control system components

Safety

  • Risk of explosion due to fuel system leaks or faulty electrical components
  • Risk of injury from moving parts or hot surfaces
  • Risk of asphyxiation due to inadequate ventilation in engine room

Class survey

Class surveyor typically checks engine performance, emissions, and safety equipment, as well as verifying compliance with regulatory requirements and manufacturer recommendations

Estimated lifetime: 20000-30000 hours

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