Main Engine 2-Stroke · Main Engines (2-Stroke)
The MAN 6S50MC-C8 is a low‑speed, six‑cylinder two‑stroke diesel main engine delivering 22.38 MW at 127 rpm, featuring camshaft‑controlled fuel injection and constant‑pressure turbocharging for high efficiency and emission control.
6 Zylinder, S=Super-Long-Stroke, 50=Bohrung 500 mm, MC=mechanisch, C=Compact, 8=Mark 8.
6-Zylinder S-Typ MC-C Mark 8 mit 500 mm Bohrung und 2.000 mm Hub. Standard-Mark-8-Version (ohne .2-Optimierung). Riesige Bestandsflotte.
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur nach Zylinder | 350-420 °C bei MCR | >20 °C Spread |
| Pmax | Gemäß Shop-Test ±3 bar | Spread >5 bar |
| Spülluftdruck | 2.5-3.2 bar abs | Zu niedrig |
| Zylinderöl-Feed-Rate | 0.8-1.2 g/kWh | An BN anpassen |
Symptoms: Timing-Drift
Causes: Langzeitbetrieb
Preventive: Nockenprofile bei Docking.
Symptoms: Ölverbrauch, Leckgas
Causes: VLSFO, Langzeitbetrieb
Preventive: Scavenge-Port alle 4.000 h.
Symptoms: Spreizung
Causes: Catfines
Preventive: Brennstoff-Qualität.
IMO Tier I/II. EEXI ggf. EPL oder ME-Retrofit.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
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