Exploring the Best Cummins Marine Diesel Engines for Your Vessel

October 2, 2024

What Is The Best Cummins Marine Engine For Your Vessel?


Defining Boat Sizes


Cummins Marine Diesel Engines for Small Boats (Under 35 Feet)


1. 6BT 5.9L


Parts Catalog for Cummins 6BT 5.9L



2. QSB 5.9


Parts Catalog For Cummins QSB 5.9 Marine Engine


Cummins Marine Diesel Engines for Medium Boats (35-65 Feet)


1. QSB 6.7


Parts Catalog for Cummins QSB 6.7 Marine Engines



2. QSC 8.3


Parts Catalog for Cummins QSC 8.3:


Cummins Marine Diesel Engines for Large Boats (Over 65 Feet)


1. QSL 9


Parts Catalog for Cummins QSl 9


2. QSM 11


Parts Catalog for Cummins QSM11



3. KTA 19


Parts Catalog for Cummins KTA19:


4. KTA 38


Parts Catalog for Cummins KTA38:


Benefits of Cummins Marine Diesel Engines


Conclusion


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Cummins Engine Reliabillity

March 1, 2023

Introduction: What Makes Cummins Engines So Reliable?


What Benefits Do You Get From Using Cummins Engines?


Common Problems Faced With Cummins Engines & How To Fix Them


Comparing the Reliability of Cummins Engines to Detroit Diesel & Caterpillar


Conclusion: Why Cummins Engines Are Your Best Choice For Durable & Reliable Performance


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Cummins Marine Engine

Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up

June 30, 2022

Guide To Engine Tune Up Your 71 V Series Engine Engine


Use new valve rocker cover gaskets after the tune-up is completed.


Tune Up Sequence for Mechanical Governor


Adjust the exhaust valves.


Time the fuel injectors.


Adjust the governor gap.


Position the injector rack control levers.


Adjust the maximum no-load speed.


Adjust the idle speed.


Adjust the Belleville spring for “TT” horsepower.


Adjust the buffer screw.


Adjust the throttle booster spring.


Adjust the supplementary governing device if used.


Exhaust Valve Clearance Adjustment


Engines With Four Valve Cylinder Heads


Valve Clearance Adjustment (Cold Engine)


Valve Clearance Adjustment (Hot Engine)


Check Exhaust Valve Clearance Adjustment


Fuel Injector Timing


Time Fuel Injector



Variable Speed Mechanical Governor And Injector Rack Control Adjustment


6V71,8V71, AND 12V71 Engines


Adjust Governor Gap


Position Injector Rack Control Levers


One Screw and Locknut Assembly


Two Screw Assembly


One Screw and Locknut Assembly


Final Verification & Adjustment


Adjust Maximum No-Load Speed


Adjust Idle Speed


Adjust Buffer Screw


Adjust Booster Spring


Variable Speed Mechanical Governor & Injector Rack Control Adjustment (16V71 Engines)


Governor Gap & Injector Rack Control Adjustment


Position Injector Rack Control Levers


Verify Proper Rack Adjustment


Injector Rack Adjustment


 Correcting a Tight Setting


Adjusting No. 5R & 4L Injector Racks


Adjusting Remaining Right Front Bank Injectors

Verification & Final Adjustments


Final Injector Rack Adjustment & Safety Check


Adjust Maximum No-Load


Governor & Idle Speed Adjustment


Set Maximum No-Load Speed


Adjust Idle Speed


Adjust Buffer Screw


Adjust Booster Spring


Disclaimer


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Detroit Diesel 6V71,  8V71, 12V71, 16V71 Engine Tune Up