New Cooling System Temperature Regulator Available
Usage:
D353 Marine Engines (47B),
G353 Natural Gas Engines (64B)
Description of Change: An 88°C (190°F) cooling system temperature regulator is available for the above engines. The new regulator will maintain a higher cooling system temperature. This will help prevent condensation in the engine oil.
Adaptable As: The new 88°C (190°F) 4W4841 Regulator can be used as a direct replacement for the 82°C (180°F) 6N4540 Regulator used on the above engines.
Caterpillar Information System:
1985/03/01 Bleed Holes On Parts Service Cylinder Heads
1985/03/01 New Pressure Conversion Chart Available
1985/03/01 Do Not Weld On Painted Surfaces
1985/03/01 Exhaust Clamp Nut Now Serviced Separately
1985/03/01 Over Fueling Spring No Longer Used In Governor
1985/03/01 A New Book "Analyzing Diesel And Natural Gas Engine Valve Failures" Is Available
1985/03/01 New Service Tools Available
1985/02/01 1985 Customer Training Available At Caterpillar Dealers (North America)
1985/02/01 Tighten Bolts To Correct Torque In 3161 Governor
1985/02/01 Only The External Needle Valve Can Be Adjusted On Woodward EG3PC Or EG10PC Actuators
1985/02/01 New Air Cleaner Groups And Valve Mechanism Cover Group Used
1985/02/01 Wiring Harness Conduit Component Sizes
1985/03/01 Use The Correct Oil In Natural Gas Engines
1985/03/01 New Drive Coupler Kit Used On Altronic Magneto
1985/03/01 New Crankshaft Seal Groups Used On More 3400 Series Engines
1985/03/01 Increased Preload Used In Air Shutoff Actuators
1985/03/01 New Transmission Control Valve And Pressure Relief Valve Are Used With High Flow Oil Pump
1985/03/01 Input Shaft And Flange Available As An Assembly; Makes Alignment Easier
1985/03/01 Dowtherm 209 Full-Fill Coolant
1985/03/01 Cross Link Between Fuel Racks Has Smoother Surface
1985/03/01 New Air Cleaner Element Creates Less Restriction
1985/03/01 Installation Of Heli-Coils In Holes With Damaged Threads
1985/04/01 Check Cylinder Block And Head Flatness Whenever There Is A Head Gasket Failure
1985/04/01 Several Types Of Automatic Voltage Regulators (AVR) Used In SR4 Generators