⚓ Working on this equipment?

Ask the AI troubleshooter, log your hours on board and turn them into invoice-ready service reports — for this exact model.

Start free — 14 days →

No credit card required

🔧 5 verified suppliers & service companies for MAN Energy Solutions in the Maritime Network Find suppliers →

Is MAN Energy Solutions your company? Claim this page

MAN Energy Solutions

6G65ME-C9.6

Name: MAN Energy Solutions 6G65ME-C9.6
Brand: MAN Energy Solutions
SKU: OSE-38469

The MAN 6G65ME-C9.6 is a high‑power, low‑speed two‑stroke main engine featuring a hydraulic camshaft system and advanced electronic control for optimized performance and Tier III emissions compliance.

35220.0 kW

Power

Engine Specifications

Cylinders

650 mm

Bore

3020 mm

Stroke

35,220 kW

MCR Power

95.0 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

6 = number of cylinders, G = Green Ultra Long Stroke, 65 = bore 650 mm, ME-C = MAN Electronically controlled Mark C, 9.6 = Mark 9.6 control generation.

Background

The 6G65ME-C with 3020mm stroke (S/B=4.65) is an intermediate platform between the 60er and 70er bore classes. 6 cylinders for larger Supramax and small Panamax ships.

Calculated metrics

Stroke To Bore Ratio

4.65

Inspector checklist

Fuel system

Fuel pumps: nozzles, spray pattern
Cat Fines: <15 ppm
VLSFO

Running gear and tribology

650mm liners: wear, BN
Crosshead: S/B=4.65, 3020mm stroke, high side forces, LI
Stuffing box: drainage

ME control system

HPS 300 bar
FIVA Mark 9.6
CCU

Turbocharger

Bearing clearance, cleaning
Scavenge air pressure

Logbook reference values

Parameter	Expected	Deviation means
Exhaust gas temperature	320-420 °C	>25 °C spread
Scavenge air pressure	2.0-3.5 bar	TC
Cylinder oil consumption	0.7-1.2 g/kWh	BN
OMD	<2.5% LEL	Stuffing box

Common Failure Modes

Cat Fine damage

Symptoms: Wear

Causes: Separator

Preventive: <15 ppm.

Crosshead wear

Symptoms: LI, knocking

Causes: S/B=4.65

Preventive: LI every 8000 running hours.

Cold corrosion

Symptoms: Wear

Causes: BN

Preventive: Adjust BN.

Expert tips

💡 G65 is a niche size — less experience data than the 60er or 70er.
💡 S/B=4.65: same crosshead load characteristics as G60 and G70.

Related components

Turbocharger Scavenge air cooler Separators Alpha Lubricator (6) 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

unified from engine model True

🤖 Ask about this model

One free question — answered like a marine engineer. No account needed.

Suppliers & Spare Parts

Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.

📄 Request sourcing links & documents

🛠 Manage this equipment in your fleet

Cases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.

Start free trial →

🔎 Suppliers & service for this equipment

Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.

Maritime Network →

Manuals

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

Working on this unit?

Log hours, photos and findings into an invoice-ready service report — OceanSphere Marine, 14-day free trial.

Need a service partner for MAN Energy Solutions?

114,000+ shipyards, suppliers and service companies in the Maritime Network directory.

Equipment Model #38469 · ✓ still in production