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MAN Energy Solutions

5G45ME-C9.6

Name: MAN Energy Solutions 5G45ME-C9.6
Brand: MAN Energy Solutions
SKU: OSE-38444

The MAN 5G45ME-C9.6 is a five‑cylinder, low‑speed two‑stroke marine diesel engine delivering 11.25 MW at 129 rpm, notable for its hydraulic camshaft system and Tier III emissions compliance.

11250.0 kW

Power

Engine Specifications

Cylinders

450 mm

Bore

2070 mm

Stroke

11,250 kW

MCR Power

129.0 rpm

MCR RPM

2-stroke

Stroke Type

Family: MAN Energy Solutions ME/ME-C · Tier: Tier III · Fuel: HFO, VLSFO, MDO

Inspector Detail

▸

Designation decoded

5 = Zylinderzahl, G = Green Ultra Long Stroke, 45 = Bohrung 450 mm, ME-C = MAN Electronically controlled Mark C, 9.6 = Mark 9.6 Steuerungsgeneration.

Background

Die G45ME-C ist eine relativ neue Plattform im MAN-Portfolio, positioniert zwischen 40er und 50er Bohrung. Ultra Long Stroke (2070mm, S/B=4.6) fuer optimale Propellereffzienz bei kleinen bis mittelgrossen Schiffen. 5 Zylinder Minimalkonfiguration.

Calculated metrics

Stroke To Bore Ratio

4.6

Inspector checklist

Kraftstoffsystem

Kraftstoffpumpen: Plunger, Duesen-Oeffnungsdruck, Spray-Pattern
Vorwaermung: Viskositaet 12-15 cSt bei HFO
Cat-Fines: Separator <15 ppm
VLSFO-Kompatibilitaet: Stabilitaet, Asphaltene

Laufzeug und Tribologie

Laufbuchsen 450mm: Liner-Wear, BN-Abstimmung
Kolbenringe: Gap, Laufflaeche
Kreuzkopf: S/B=4.6 hohe Seitenkraefte, LI-Aufnahme
Stopfbuchse: Drainage

ME-Steuerung

HPS 300 bar: Oelqualitaet, Filter
FIVA: Timing, Mark 9.6
CCU: Alarme, Kalibrierung

Turbolader

Lagerspiel, Vibration, Reinigung
Spuelluftdruck dokumentieren

Logbook reference values

Parameter	Expected	Deviation means
Abgastemperatur	320-420 Grad C	>25 Grad C Spread
Spuelluftdruck	1.5-3.0 bar	TC-Fouling
Zylindeloelverbrauch	0.7-1.2 g/kWh	BN/Schwefel
OMD	<2.5% LEL	Stopfbuchse

Common Failure Modes

Cat-Fine-Schaeden

Symptoms: Liner-Wear, metallischer Abrieb

Causes: Separator, VLSFO

Preventive: Cat-Fines <15 ppm.

Cold Corrosion

Symptoms: Hoher Wear, Cloverleafing

Causes: BN, Teillast

Preventive: BN anpassen, Feed-Rate bei Teillast erhoehen.

FIVA-Fehlfunktion

Symptoms: Timing, Pmax-Spread

Causes: Oelkontamination

Preventive: HPS-Oel, FIVA 16000-24000 Bh.

Expert tips

💡 G45 mit S/B=4.6 ist relativ neu — Erfahrungswerte im Aufbau. MAN Service-Letters und Technical Bulletins besonders beachten.
💡 5 Zylinder bei 450mm: Kompakter Motor, guter Zugang — Scavenging-Inspektion nutzen.
💡 Bei Ultra Long Stroke (S/B=4.6): Kreuzkopf-Lager besonders sorgfaeltig inspizieren.

Related components

Turbolader Spuelluftkuehler Separatoren Alpha Lubricator HPS

Classification & regulatory

IMO Tier II. ECA: VLSFO/Scrubber.

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

Other Cylinder Configurations 50

Components & Design

Alpha Lubricator Control MAN Energy Solutions

MAN Alpha Lubricator Mk III

Feed rate 0.6-1.2 g/kWh depending on fuel sulfur. Monitor via Alpha ACC (Adaptive Cylinder lubrication Control).

Lead time: 6 wk

25.0 kg

Crankcase Oil Mist Detector Schaller Automation

Schaller Visatron VN215+ OMD

SOLAS mandatory. Test weekly. Clean sensor optics every 4,000 hrs. Replace reference cell every 2 years.

Lead time: 2 wk

8.0 kg

Crosshead Bearing MAN Energy Solutions

MAN Crosshead Bearing (thin-shell, white metal)

Inspect at 16,000 hrs. Check bearing clearance. Monitor via bearing temperature and oil analysis.

Lead time: 12 wk

380.0 kg

Cylinder Liner MAN Energy Solutions

MAN ME-C Cylinder Liner (bore-cooled)

Wear monitoring via calibration. Max wear 0.8% of bore. Replace typically at 32,000-60,000 hrs.

Lead time: 16 wk

3500.0 kg

Engine Control Unit (ECU / ECS) MAN Energy Solutions

MAN ECS (Engine Control System)

Dual-redundant ECU. Software updates via MAN PrimeServ. Keep backup CCU on board.

Lead time: 8 wk

45.0 kg

Exhaust Valve (& Valve Seat) MAN Energy Solutions

MAN Exhaust Valve (Nimonic/Stellite)

Overhaul at 8,000-12,000 hrs. Stellite-faced seat. Grinding/lapping at overhaul. Check spindle guide clearance.

Lead time: 8 wk

320.0 kg

FIVA Valve (ME-type) MAN Energy Solutions

MAN FIVA Valve (ME-C)

FIVA = Fuel Injection Valve Actuator. Overhaul at 8,000 hrs. Critical for timing accuracy.

Lead time: 8 wk

35.0 kg

Fuel Booster Module (ME-type) MAN Energy Solutions

MAN Fuel Booster Module

Overhaul at 16,000 hrs. Pressure test fuel pipes. Check plunger wear with micrometer.

Lead time: 12 wk

450.0 kg

Fuel Valve (Injector) MAN Energy Solutions

MAN ME-C Fuel Valve Assembly

Overhaul every 4,000-8,000 hrs. Pressure test after overhaul. Nozzle replacement at 8,000 hrs.

Lead time: 4 wk

85.0 kg

Governor (Electronic/Woodward) Woodward

Woodward 723PLUS Digital Governor

Electronic governor integrated with ECS on ME engines. Firmware updates via Woodward service.

Lead time: 4 wk

15.0 kg

Hydraulic Cylinder Unit (HCU) MAN Energy Solutions

MAN HCU (ME-C type, per cylinder)

One HCU per cylinder. FIVA valve overhaul at 8,000 hrs. Booster overhaul at 16,000 hrs.

Lead time: 12 wk

1200.0 kg

Hydraulic Power Supply (HPS) MAN Energy Solutions

MAN HPS Unit (ME-C)

Servo oil SAE 30 / System oil. Filter change every 4000 hrs. Monitor servo oil pressure.

Lead time: 16 wk

2800.0 kg

Main Bearings MAN Energy Solutions

MAN Main Bearing Shells (white metal/tri-metal)

Inspect at 16,000 hrs. Jack up crankshaft for clearance measurement. Replace at signs of overlay fatigue.

Lead time: 8 wk

250.0 kg

PMI (Pressure Measurement Indicator) MAN Energy Solutions

MAN PMI Sensor System

Online cylinder pressure monitoring. Calibrate sensors annually. Essential for combustion optimization.

Lead time: 4 wk

5.0 kg

Piston Crown MAN Energy Solutions

MAN ME-C Piston Crown (bore-cooled Cr-Mo steel)

Inspect at 16,000 hrs. Pull piston at 16,000-24,000 hrs. Check cooling bores with borescope.

Lead time: 16 wk

1800.0 kg

Piston Ring Pack MAN Energy Solutions

MAN Piston Ring Set (CPR / AL rings)

CPR (Controlled Pressure Relief) top ring. Replace at 8,000-16,000 hrs depending on wear.

Lead time: 4 wk

60.0 kg

Scavenge Air Cooler MAN Energy Solutions

MAN Scavenge Air Cooler (plate-type)

Clean air side every 4,000-8,000 hrs (chemical/HP water). Monitor pressure drop and charge air temp.

Lead time: 16 wk

5500.0 kg

Turbocharger Unit (ABB/MHI/Napier) ABB Turbocharging

ABB A175-L Turbocharger

Overhaul at 12,000-16,000 hrs. Water washing every 24-100 hrs depending on load.

Lead time: 12 wk

4500.0 kg

Technical Data

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Manuals

operating
MAN B&W ME/ME-C/ME-B Engine Operation (OM-ME-C)
maintenance
MAN B&W ME/ME-C Maintenance Manual (MM-ME-C)
spare_parts
MAN B&W ME/ME-C Illustrated Parts Catalogue (IPC-ME-C)
service_letter
SL-ME Service Letters Collection (SL-ME)
technical_data
MAN CEAS Engine Calculation Tool (CEAS)

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Equipment Model #38444 · ✓ still in production