To Next PageTo Next Page
Need help?Do you have a question about the CUMMINS Marine QSB6.7 CM2250 and is the answer not in the manual?
General| Engine Model | QSB6.7 CM2250 |
|---|---|
| Configuration | Inline 6-cylinder |
| Aspiration | Turbocharged and Aftercooled |
| Engine Type | 4-Stroke Diesel |
| Compression Ratio | 17.3:1 |
| Cooling System | Liquid-cooled |
| Displacement | 6.7 liters |
| Fuel System | High Pressure Common Rail |
| Bore | 107 mm |
| Stroke | 124 mm |
| Emissions Compliance | EPA Tier 3, IMO Tier II, EU Stage IIIA |
| Torque Output | 732-1424 N•m [540-1050 lb-ft] |
Provides detailed safety precautions for operating and maintaining the engine, covering work environment and best practices.
Explains the meaning of various symbols used throughout the manual to convey instructions and warnings.
Describes the purpose and nature of illustrations used in the manual for repair and replacement procedures.
Lists common acronyms and abbreviations used in the manual for technical terms and system names.
Details how to identify engine components using dataplate information like serial number and model.
Explains the procedure for identifying Cummins engine models based on nomenclature, including liter size and technology.
Provides information on engine components that constitute the emission control system, identified by acronyms.
General guidance on engine care for longevity, performance, and economy. Emphasizes daily maintenance checks.
Step-by-step guide for starting the engine, including pre-start checks and procedures for boats out of water.
Provides guidance for starting the engine in cold conditions, including considerations for oil viscosity and intake air heaters.
Instructions for normal engine operation, including monitoring gauges and handling overheating conditions.
Defines safe operating parameters, cautioning against prolonged operation below peak torque or exceeding maximum speed.
Details the correct engine shutdown procedure to prevent damage to the turbocharger and ensure proper ECM function.
Explains the functions of the electronic control system, including fueling, timing, and diagnostic fault codes.
Discusses EMI effects on electronic systems and provides recommendations for minimizing interference from accessories.
Recommends system maintenance based on the schedule, with adjustments for temperature, environment, and load.
Outlines maintenance procedures at various intervals: daily, 125 hours/3 months, 250 hours/6 months, 500 hours/1 year, 2000 hours, 5000 hours/4 years.
Provides a form to record maintenance data, including date, interval, checks performed, and personnel.
Lists publications available for purchase, such as service manuals, troubleshooting guides, and wiring diagrams.
Provides contact information and locations for ordering service literature and parts catalogs.
Announces the availability of customized parts catalogs compiled specifically for engine build information.
Lists torque values for specific components and assemblies as part of operating instructions.
Details general engine specifications such as horsepower, displacement, bore and stroke, and valve clearance.
Provides recommendations for engine lubricating oils, including SAE grades, API categories, and CES standards.
Details fuel recommendations, emphasizing cleanliness and listing acceptable substitute fuels for the engine.
Lists part numbers for Cummins and Fleetguard filters, including oil, fuel, and air filters.
Covers coolant recommendations, including antifreeze types, mixtures, water quality, and sealing additive warnings.
Outlines warranty coverage for recreational marine propulsion engines, including base and extended major components warranty.
Details warranty coverage for light commercial and government marine propulsion engines, including coverage periods and limitations.
