New Cylinder Liner Has Improved Design To Keep Liner Temperatures Lower
Usage:
D353, D379, D398 and D399 Industrial and Marine Engines
Description of Change: A new cylinder liner with an improved design is used in the above models. The new liner has a groove which is 1.35" (34.4 mm) wide and .050" (1.27 mm) deep in a location approximately .5" (12.7 mm) below the top flange.
The groove permits a better flow of coolant around the upper part of the liner. The result is lower maximum temperatures of the liner during engine operation.
Adaptable To: The 8N9174 Cylinder Liner is a direct replacement for the former 7N5681 Cylinder Liner, which is canceled.
Caterpillar Information System:
1980/02/06 Real Value Available Through Caterpillar Remanufacturing Programs
1980/02/06 Use The Correct Water Temperature Contactor
1980/01/23 Extended Shafts Now Available For Front Power Takeoff Units
1980/01/23 A Spring With A Lower Rate Is Now Used In The Fuel Filter Group To Give Less Fuel Pressure
1980/01/23 8N1831 Fuel Nozzle Assembly Now Approved For Use In 1693 Truck Engine; Chart For Applications Of 8N1831 And 7N5005 Fuel Nozzle Assemblies
1980/01/23 New Fuel Injection Nozzle Assembly Used
1980/01/23 Cooling System Improvements Prevent Expansion Tank Leakage
1980/01/23 General Information-Diesel Fuels In Cold Temperature Operation
1980/01/23 New Raw Water Engine Oil Cooler Is Used
1980/01/23 Fuel Sulfur-Your Diesel's Silent Enemy
1980/01/09 New Exhaust Valve For Special Engine Applications
1980/01/09 New Linkage Kits With Improved Parts Are Available For Repair Of Front Power Takeoff Clutches
1980/02/06 Change To Gear On Accessory Drive Shaft Assembly Gives Longer Service Life
1980/02/06 List Of Service Publications
1980/02/06 Oil Drain Hole Added To Spacer Plate Cylinder Block To Permit Use Of Scroll Fuel System
1980/02/27 Identification Of Fuel Injection Lines And Nozzle Bodies For Different Combustion Systems
1980/02/27 New Piston Groups Have The Piston Pin Bore Off-Center, Away From The Thrust Side Of The Piston
1980/02/27 New Attachment Air Compressor Group and Lines Groups Have Improved Design
1980/02/27 How To Check Operation Of Hydramechanical Shutoffs On D379B, D398B, D399 Engines
1980/02/27 Warning: Avoid Use Of Fuel Mixtures Of High Volatility. If You Are Exposed To Such Mixtures, Be Aware Of The Hazards Involved And Take Proper Precautions
1980/02/27 Plunger Movement Must Be Adjusted When New Rack Shut-Off Solenoid Is Installed
1980/03/12 Inspect Regulator Cover Assembly When Overcooling Is A Problem
1980/03/12 Visual Inspection Of Main And Connecting Rod Bearings
1980/03/12 Connecting Rod Changes And Replacement Information