May 9, 2025
1. Marine Applications of the Cummins 6.7L Engine
1. Recreational Yachts and Cruisers
2. Commercial Fishing Vessels
3. Passenger Ferries and Charter Boats
4. Pilot Boats and Patrol Craft
5. Tugboats and Support Vessels
2. Top Causes of Overheating in Marine Cummins 6.7L Engines
1. Restricted Raw Water Flow
2. Clogged or Fouled Heat Exchangers
3. Failing Thermostat
4. Low Coolant or Improper Coolant Mix
5. Raw Water Pump Failure
6. Clogged Keel Cooler (For Vessels Without Heat Exchangers)
7. Faulty Temperature Sensor or ECU Misreading
8. EGR Cooler Failure (in Emissions-Compliant Models)
9. Internal Corrosion from Improper Coolant or Storage
10. Overloading and Continuous High RPM Operation
3. Maintenance Best Practices for Marine Cummins 6.7L Engines
4. Recommended Parts from Diesel Pro Power
Conclusion: Keep Your QSB6.7 Cool and On the Water
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April 21, 2025
Overview of the Fuel Injection System For Cummins ISC, QSC8.3, ISL, QSL9
Introduction to High-Pressure Common Rail (HPCR) Technology
How Fuel Injection Works in These Engines
Fuel Injection Strategies
Troubleshooting Common Fuel System Issues For Cummins ISC, QSC8.3, ISL, QSL9
Symptoms of Fuel System Problems
Diagnostic Steps
Common Faults and Their Causes
Specific Troubleshooting Tips
Use of Diagnostic Software
Cleaning and Replacing Injectors For Cummins ISC, QSC8.3, ISL, QSL9
Injector Design and Function
When to Clean vs. When to Replace Injectors
Cleaning Procedures
External Cleaning
Ultrasonic Cleaning (Bench Cleaning)
On-Engine Injector Cleaner Kits
Replacement Procedure Overview
Tips for Successful Injector Replacement
Understanding the Injector Calibration Code
Preventing Future Injector Problems
Recommended Injector Service Intervals
Conclusion: Maintaining Optimal Fuel System Performance For Cummins ISC, QSC8.3, ISL, QSL9
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April 18, 2025
Key Topics Covered
Introduction
1. Cummins C Series (6C, 6CT, 6CTA – 1991 & 1994 Certification Levels)
2. Cummins KTA19
3. Cummins ISB & QSB
4. Cummins B Series (6B, 6BT, 6BTA, 4B, 4BT, 4BTA)
5. Cummins ISM, ISMe & QSM11
6. Cummins N14
7. Cummins KTA38 & KTA50
8. Cummins QSC 8.3 & QSL 9
FAQs – Cummins Engine Service Essentials (25 Practical Questions)
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March 19, 2025
Cummins Marine Engine Models: Official Names vs. Slang Terms (Including Regional & Application-Specific Nicknames)
1. Cummins B Series Marine Engines (4B, 6B, 6BT, 6BTA)
2. Cummins C Series Marine Engines (6C, 6CT, 6CTA 8.3)
3. Cummins K Series Marine Engines (KTA, KTA19, KTA38, KTA50)
4. Cummins Quantum Series (QSB, QSC, QSM, QSK)
Conclusion
Cummins Engine Parts: Official Names vs. Slang Terms
1. Cylinder Head and Block Components
2. Pistons and Connecting Rods
3. Crankshaft and Camshaft Components
4. Valvetrain and Air Intake Components
5. Fuel System Components
6. Cooling System Components
Conclusion
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February 27, 2025
Introduction
1. The Role of the Lubrication System
2. Oil Pump Operation and Servicing
2.1 How the Oil Pump Works
2.2 Signs of Oil Pump Failure
2.3 Servicing the Oil Pump
3. Oil Filter and Lubrication Maintenance
3.1 Importance of Regular Oil Changes
3.2 Choosing the Right Engine Oil
3.3 Replacing the Oil Filter
4. Identifying and Fixing Oil Leaks
4.1 Common Causes of Oil Leaks
4.2 How to Identify Oil Leaks
4.3 Fixing Oil Leaks
5. Preventative Maintenance Tips
Conclusion
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February 27, 2025
Introduction
1. Importance of Maintaining Proper Cooling
1.1 The Role of the Cooling System in Engine Health
1.2 Signs of Cooling System Problems
2. Radiator and Coolant Maintenance
2.1 Radiator Maintenance and Inspection
2.2 Coolant Maintenance and Replacement
Coolant Change Intervals
Proper Coolant Mixture
3. Water Pump Inspection and Replacement
3.1 Signs of a Failing Water Pump
3.2 Water Pump Replacement Procedure
4. Common Cooling System Problems and Troubleshooting
Overheating Despite Coolant Being Full
Coolant Leaks Near the Engine
White Smoke from Exhaust with Coolant Loss
Coolant Turning Brown or Sludgy
Conclusion
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