Overheating in Cummins 6.7L Marine Engines: Causes, Prevention & Solutions

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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Overheating in Cummins 6.7L Marine Engines: Causes, Prevention & Solutions

Practical Guides To Servicing Cummins Marine & Industrial Engines

April 18, 2025

Key Topics Covered


Introduction


1. Cummins C Series (6C, 6CT, 6CTA – 1991 & 1994 Certification Levels)


📘 Practical Guide To Servicing Cummins C Series Engines


2. Cummins KTA19


📘 Practical Guide to Servicing Your Cummins KTA19


3. Cummins ISB & QSB


📘 Practical Guide to Servicing Cummins ISB & QSB


4. Cummins B Series (6B, 6BT, 6BTA, 4B, 4BT, 4BTA)


📘 Practical Guide to Servicing Your Cummins B Series Engines


5. Cummins ISM, ISMe & QSM11


📘 Practical Guide to Servicing Cummins ISM, ISMe, and QSM11 Engines


6. Cummins N14


📘 Practical Guide to Servicing Your Cummins N14 Engine


7. Cummins KTA38 & KTA50


📘 Practical Guide to the Operation & Maintenance of Cummins KTA38 & KTA50 Engines


8. Cummins QSC 8.3 & QSL 9


📘 Practical Guide to Servicing Cummins QSC 8.3 & QSL 9 Engines


FAQs – Cummins Engine Service Essentials (25 Practical Questions)


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Practical Guides To Servicing Cummins Marine & Industrial Engines

Cummins 6BT Rebuilt By Imperial Diesel Video

April 14, 2025

Rebuilding the Cummins 6BT with Diesel Pro Parts – A Visit to Imperial Diesel Service


Inside the Shop: A Rebuilt Cummins 6BT from Imperial Diesel Service


The Cummins 6BT: Still a Legend


Why Mechanics Choose DieselPro.com for 6BT Rebuilds


Watch the Rebuild in Action


Why Buy Your Cummins 6BT Parts From Diesel Pro Power?


Over 40,000 Satisfied Customers Worldwide


Fast, Worldwide Shipping


Intuitive Online Ordering


Secure and Private


World-Class Customer Service


Where the Cummins 6BT Shines – Applications We Support


Marine Applications


Industrial Applications


Cummins 6BT Engine Specifications


Applications of the Cummins 6BT Engine


1. Marine Auxiliary and Generator Use


Marine Use Cases:

2. Power Generation Systems


Generator Applications:

3. Construction & Utility Equipment


Common Applications:

4. Agricultural Machinery


Agricultural Use Cases:

5. Oilfield and Heavy Utility Applications


Oilfield Uses:

6. Global Export and Repower Markets


Global Applications:

Key Advantages of the Cummins 6BT Engine


Conclusion


Additional Resources For The Cummins 6BT


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Cummins 6BT Rebuilt By Imperial Diesel Video

Installing Camshaft Into Cummins 6BT 5.9L (Installation By Imperial Diesel Service, LLC) Video

April 9, 2025

Installing a Camshaft into a Cummins 6BT Engine


Understanding the Camshaft in the Cummins 6BT Engine


Preparation for Camshaft Installation – Cummins 6BT Engine


Removing the Old Camshaft – Cummins 6BT


Inspecting Components Before Installation – Cummins 6BT Engine


Installing the New Camshaft – Cummins 6BT 


Setting Camshaft Timing – Cummins 6BT 


Final Steps and Initial Startup – Cummins 6BT 


Troubleshooting After Camshaft Installation – Cummins 6BT 


Maintenance After Installation – Cummins 6BT 


FAQ – Installing a Camshaft in a Cummins 6BT


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Installing Camshaft Into Cummins 6BT 5.9L (Installation By Imperial Diesel Service, LLC) Video

Cummins Marine Engine Slang: The Ultimate Guide to Nicknames, Parts, and Regional Terms

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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Cummins Marine Engine Slang: The Ultimate Guide to Nicknames, Parts, and Regional Terms

Cummins Engine Torque Specs

February 19, 2025

Cummins Engine Torque Specifications by Model


Cummins 6B, 6BT, and 6BTA 5.9L Torque Specs


Cummins 4BT Torque Specs


Cummins 6C, 6CT, and 6CTA 8.3 Torque Specs


Cummins QSB 6.7L Torque Specs


Cummins QSC 8.3L Torque Specs


Cummins ISC 8.3 Torque Specs


Cummins ISL 8.9L Torque Specs


Cummins ISX Torque Specs


Cummins KTA 19 Torque Specs


Cummins N14 Torque Specs


Cummins 855 Torque Specs


Why Torque Specs Matter


1. Prevents Bolt Over-Tightening


2. Prevents Under-Torquing


3. Ensures Even Clamping Pressure


4. Prevents Fastener Fatigue and Improves Serviceability


5. Improves Performance and Efficiency


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Cummins Engine Torque Specs