G60ME-C
The MAN G60ME-C is a low‑speed, two‑stroke marine diesel engine from the ME/ME‑C family, featuring a 600 mm bore and designed for high power density with flexible fuel use.
Engine Specifications
Inspector Detail
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Designation decoded
G für Green/Ultra-Long-Stroke, 60 für Bohrung 600 mm, ME-C für vollständig elektronische Steuerung. Ultra-Long-Stroke-Variante des meistgebauten S60-Motors.
Background
The G60ME-C is the Ultra-Long-Stroke variant of the 600 mm engine series for bulk carriers and tankers. At same bore as S60ME-C, G60 operates at lower speed and enables larger propeller. Designed for EEDI Phase 3 optimised newbuildings in Panamax class. G variant is increasingly preferred over S variant, as efficiency is prioritised over power density.
Calculated metrics
Inspector checklist
- Zylinderlaufbuchse: 600 mm Bohrung, Ultra-Long-Stroke — höhere Seitenkräfte als S60, Verschleißprofil an 8 Punkten
- Piston rings: Increased tilting moments due to long stroke — CPR ring condition to be documented precisely
- Crosshead bearing: Ultra-Long-Stroke side forces — bearing clearance and oil film formation
- FIVA-Ventile: Standard-ME-C-Prüfung
- HPS: pump output and accumulators
- PMI-Online: Cylinder pressure curves at lower speed than S60
- Fuel injectors: Longer injection time per cycle — spray pattern and erosion
- Kraftstoff-Separatoren: Cat-Fine-Entfernung
- Brennstoff-Qualitätsmanagement
- Stopfbuchse: Ultra-Long-Stroke = längerer Hub als S60 — höhere Dichtungs-Beanspruchung, Drainage-Trend dokumentieren
- Auslassventil: ME-C = elektronisch, Standardprüfung
- Zylinderkopf: Blow-by
- Turbocharger: 1-2× — efficiency and bearing clearance
- Scavenge air cooler: pressure differential and cooling capacity
- Auxiliary Blower: Wider operating range at Ultra-Low-RPM
Logbook reference values
| Parameter | Expected | Deviation means |
|---|---|---|
| Exhaust gas temperature per cylinder | 345-420 °C at 85% MCR | Spread >20 °C → Verbrennungs-Asymmetrie |
| Scavenge Air Pressure | 2.5-3.5 bar abs at MCR | Zu niedrig → Turbolader prüfen |
| Zylinderöl-Feed-Rate | 0.6-0.9 g/kWh | BN-Matching |
| ME Hydraulikdruck | 200-300 bar | Druckabfall → HPS/FIVA |
| Kühlwasser-Temperatur | 80-90 °C | Einzelzylinder-Abweichung → Dichtung/Laufbuchse |
Common Failure Modes
Expert tips
- 💡 G60 as successor to S60 in newbuilds: The efficiency gains through the larger propeller amount to 3–5% — that is the EEDI lever
- 💡 With the G60: The engine is physically longer than the S60 — engine room planning and foundation height must be adapted
- 💡 Slow-Steaming beim G60 ist weniger problematisch als beim S60, da der Motor bereits für niedrigere Drehzahlen optimiert ist
Related components
Classification & regulatory
IMO Tier II. EEDI Phase 3 compliant. G-series as EEDI champion for Panamax class. CII optimization through lower speed and larger propeller.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Service & Maintenance
Use MAN condition monitoring, drain oil analysis and scavenge inspection. Piston and exhaust valve maintenance intervals depend on operating profile and fuel.
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