5G60ME-GI10
The MAN Energy Solutions 5G60ME‑GI10 is a 2‑stroke low‑speed dual‑fuel main engine delivering up to 24.5 MW at 105 rpm, notable for high‑pressure LNG injection and instant fuel switching between HFO and LNG.
Engine Specifications
Inspector Detail
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Designation decoded
5 stands for 5 cylinders, G for Green Ultra-Long-Stroke, 60 for 600 mm bore, ME-GI for high-pressure gas injection (LNG), 10 for Mark 10.
Background
The G60ME-GI10 combines Green Ultra-Long-Stroke (S/B 4.65) with high-pressure LNG injection. Maximum efficiency at minimal emissions. For modern LNG carriers with the highest efficiency requirements.
Calculated metrics
Inspector checklist
- Cylinder liners: S/B 4.65 — extremely high side forces plus LNG cold corrosion wear
- Piston rings: Maximum side pressure under gas conditions
- Cylinder lubrication: BN25, calibrate Alpha Lubricator exactly
- Gas injection valves: 300 bar tightness
- HP compressor: Condition and redundancy
- Gas detectors (methane at the top)
- Crosshead bearing: High side forces with G-type
- Stuffing box: S/B 4.65 — maximum relative movement
- Piston rod: Run-out
- ME control: FIVA, HPS/HCU, EICU
- Gas/diesel changeover
- Safety logic
Logbook reference values
| Parameter | Expected | Deviation means |
|---|---|---|
| Exhaust temperature by cylinder | 310–370 °C (LNG); 340–410 °C (diesel) | Spread >15 °C → check gas/pilot |
| Gas injection pressure | 280–320 bar | Deviation → HP compressor/valve |
| Pmax | ±2 bar | Deviation → control system |
Common Failure Modes
Expert tips
- 💡 G60ME-GI10 with S/B 4.65 and LNG: Triple challenge — high side forces, gas lubrication, and 300 bar injection pressure
- 💡 The HP compressor is the most critical single component — regularly test the redundant compressor in operation
- 💡 5 cylinders with G-type: Torsional vibrations — vibration damper top priority
Related components
Classification & regulatory
IMO Tier II/III. IGC Code. SOLAS. MARPOL — LNG SOx-free, CO2 -25%.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Other Cylinder Configurations 36
Components & Design
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Technical Data
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