OceanSphereFree accountLog inDEENPL
OceanSphereENGINES
Library› Engine Room› Main Engines (2-Stroke)› Main Engine 2-Stroke› MAN Energy Solutions 8G70ME-GA10

8G70ME-GA10

Main Engine 2-Stroke · Main Engines (2-Stroke)

Technical data from manufacturer or class sources · not yet verified by a person
54,960 kWPower
8Cylinders
700 mmBore
3,256 mmStroke
91 rpmMCR RPM

The MAN 8G70ME-GA10 is an eight‑cylinder, low‑speed two‑stroke main engine delivering up to 55 MW (≈54 960 kW) at 91 rpm, notable for its dual‑fuel capability (LNG/ethane plus conventional marine fuels) and Tier III emission compliance.

Inspection

Inspector Detail ✓ verified

Designation decoded

8 steht für 8 Zylinder, G für Green Ultra-Long-Stroke, 70 für 700 mm Bohrung, ME-GA für Ethan-fähige Gaseinspritzung, 10 für Mark 10.

Background

Die G70ME-GA10 mit 8 Zylindern ist einer der leistungsstärksten und effizientesten ME-GA-Motoren. S/B 4.65 bei 700 mm und 3256 mm Hub. 8 Zylinder für maximale Leistung und bestes Schwingungsverhalten. Für die größten VLEC/VLGC.

Calculated metrics

Stroke to bore ratio4.651

Inspector checklist

Laufzeug & Tribologie
  • Zylinderlaufbuchsen: S/B 4.65 — extrem hohe Seitenkräfte plus Gas-Kaltverschleiß
  • Kolbenringe: Maximaler Seitendruck bei Gas-Bedingungen
  • Zylinderschmierung: BN25, Alpha-Lubricator exakt kalibrieren, Quills bei 700 mm testen
Gaseinspritz-System
  • Gas-Einspritzventile: Dichtheit an allen 8 Zylindern — bei G-Typ höhere thermische Belastung
  • FGSS: Kompressor, Verdampfer, Sicherheitsventile
  • Gas-Detektoren
Kreuzkopf & Stopfbuchse
  • Kreuzkopflager: 3256 mm Hub — maximale Kräfte an 8 Lagern
  • Stopfbuchse: S/B 4.65 — maximale Relativbewegung auch im Gasbetrieb
  • Kolbenstange: Deflection an allen 8 Kröpfungen
Elektronische Steuerung
  • ME-Steuerung: FIVA, HPS/HCU, EICU
  • Gas/Diesel-Umschaltung
  • Sicherheitslogik
Spülluft & Abgassystem
  • Spülluftkasten: Bei 700 mm zugänglich — trotz Gas Öleintrag bei G-Typ
  • Turbolader: 2 TC
  • Abgastemperatur über 8 Zylinder

Logbook reference values

ParameterExpectedDeviation means
Abgastemperatur nach Zylinder320–380 °C (Gas); 340–410 °C (Diesel)Spread >15 °C → Gas/Pilot prüfen
Gas-Einspritzdruck250–300 barAbweichung → Kompressor/Ventil
Kreuzkopflager-Temperatur55–65 °CAnstieg → sofort untersuchen
Pmax±2 barAbweichung → Steuerung

Common Failure Modes

  • Beschleunigter Liner-Verschleiß bei S/B 4.65 und Gas

    Symptoms: Hohe Wear-Rate

    Causes: Extrem hohe Seitenkräfte, Kein Aschefilm, BN zu hoch

    Preventive: BN25, Alpha-Lubricator kalibrieren

  • Gas-Einspritzventil-Leckage

    Symptoms: Gas-Alarm

    Causes: Verschleiß

    Preventive: Ventile inspizieren

  • Stopfbuchsen-Verschleiß bei G-Typ

    Symptoms: Steigende Drainage

    Causes: S/B 4.65

    Preventive: Drainage-Trend, 1000 Bh Intervall

Expert tips

  • 8×G70ME-GA10 ist einer der leistungsstärksten und effizientesten ME-GA-Motoren — die Kombination aus G-Typ, Gas und 8 Zylindern bietet höchste Effizienz bei stabilem Betrieb
  • Zylinderöl-Management bei S/B 4.65 und Gas: BN25 mit LDF (Load-Dependent-Feed) — die elektronische Dosierung muss bei Gas anders kalibriert sein als bei Diesel
  • 8 Zylinder mit 2 TC: Bei Slow Steaming TC-Cut-Out-Prozedur testen, auch im Gasbetrieb relevant

Related components

  • FGSS
  • Gas-Einspritzventile
  • Gas-Detektoren
  • Turbolader (2 TC)
  • Pilot-Fuel-System
  • Alpha-Lubricator
  • Schwingungsdämpfer

Classification & regulatory

IMO Tier II/III. IGC Code. SOLAS. MARPOL — maximale Emissionsreduktion.

Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.

Need this part?

Request a quote for this model.

Free of charge — send us your request for MAN Energy Solutions equipment. Our team checks it and replies by e-mail.

Makers and authorised dealers rarely quote marine equipment without the vessel. With these details we can check availability and prices faster; without them we may have to ask first, which can cost a few days. If you cannot share the vessel, a photo of the equipment’s rating plate does the same job — attach it below or send it as a reply to our confirmation e-mail.

Your contact details are not published. No account required.
Related models

Also in Main Engine 2-Stroke.

Other models of the same equipment type, MAN Energy Solutions first.

By manufacturer MAN Energy SolutionsWinGDSulzerWärtsiläMitsubishiElectro-Motive DieselHyundaiDoosanHudong-ZhonghuaJapan Engine CorporationAkasaka Diesel (Mitsubishi UEC licensed)National Railway EquipmentHSD EngineKawasakiProgress Rail Locomotive, Inc.All manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner All MAN Energy Solutions models More like 8G70ME-GA10
Would you like to know more?

A person reads every request and replies by e-mail.

Tell us what you need for this MAN Energy Solutions 8G70ME-GA10 — a part, a service call, a second opinion. Are you MAN Energy Solutions? Claim this brand page.

Service engineer? Write the day report for this 8G70ME-GA10 in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Three things people ask first.

Is this model's data free?

Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.

Can you find a part for this exact model?

Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.

The specifications look wrong — what now?

Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.