New Raw Water Engine Oil Cooler Is Used
Usage:
D398A, D398B and D399 Industrial And Marine Engines
Description of Change: A raw water oil cooler of a different design is now used in the engine oil cooler group which is available for D398A, D398B and D399 Industrial and Marine Engines. The new oil cooler uses a gasket to give a seal between the flange on the tube bundle and the outer body. Formerly, the flange on the tube bundle was welded to the outer body.
Also, a double source temperature regulator is now used instead of the former single source temperature regulator.
Adaptable As: The new heat exchanger assembly (oil cooler) and temperature regulator are direct replacements for the former parts as shown in the chart which follows:
Caterpillar Information System:
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
1980/01/09 List Of Service Publications
1980/01/09 Too Much Clearance For Exhaust Valves Can Cause Wear To The Camshaft Lobes And Valve Lifters
1980/01/09 Fuel Heaters Are Now Available For Field Installation
1980/01/09 Improved Ring Seal Used At Rear of Crankshaft
1980/01/09 Crankcase Capacity Increased; New Dimensions For Marks On Oil Level Gauge
1980/01/09 If Malfunction Of The Engine Fault Light In The Control Panel Of SR-4 Generators Is A Problem, A Toggle Switch Can Be Used In Its Place
1979/11/28 New Cylinder Block Has More Material Around Liner Seat Area
1979/11/28 List Of Service Publications
1979/11/28 New Cylinder Heads Are More Rigid And Stronger
1980/01/23 General Information-Diesel Fuels In Cold Temperature Operation
1980/01/23 Cooling System Improvements Prevent Expansion Tank Leakage
1980/01/23 New Fuel Injection Nozzle Assembly Used
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 A Spring With A Lower Rate Is Now Used In The Fuel Filter Group To Give Less Fuel Pressure
1980/01/23 Extended Shafts Now Available For Front Power Takeoff Units
1980/02/06 Use The Correct Water Temperature Contactor
1980/02/06 Real Value Available Through Caterpillar Remanufacturing Programs
1980/02/06 New Cylinder Liner Has Improved Design To Keep Liner Temperatures Lower
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