New Valve Cover Seals Are Available For Mechanical Unit Injector (MUI) and Electronic Unit Injector (EUI) Engines {1107}
Usage:
3500 Industrial, Marine, Generator Set, and Locomotive Engines
Description of Change: New valve cover seals are available for MUI and EUI Engines. The new valve cover seals are made from a different material and will provide an improved service life. The new seals are black in color. The former seals were orange in color.
Adaptable To: The new 134-5959 O-Ring Seal is a direct replacement for the former 2W-2072 O-Ring Seal used in EUI applications. The new 134-5958 O-Ring Seal is a direct replacement for the former 4W-1596 O-Ring Seal used in MUI applications. The new 134-5959 O-Ring Seal is effective with all 3500 EUI Engines. The new seals are adaptable to first production.
Caterpillar Information System:
1996/09/23 A Chamfer Has Been Added To Some Engine Cylinder Head Bolt Holes To Help Reduce Stress Concentrations And Prevent Cracks {1101}
1996/09/23 Replacement Turbocharger Cartridge Part Numbers {1056}
1996/09/23 Error In The Testing And Adjusting Manuals For Fuel System Adjustment Timing Pin {1272}
1996/09/23 New Mixer Assembly Provides Better Startability And Idle Stability {1266}
1996/09/23 New Governor Weight And Race Increase Durability {1264}
1996/09/23 New Piston Rings Extend Valve Service Life {1215}
1996/09/23 Special Instruction, SEHS9246-01, "Using 9U-6860 Tool Group To Replace Unit Injector Sleeves" Is Available {1713}
1996/09/23 New Parts Available To Eliminate Wear Between The Oil Cooler Bonnet And The Elbow {1378,1380}
1996/09/23 Oil Pan Gasket Is Reusable {1302}
1996/09/23 Valve Cover Base Gasket Is Reusable {1120}
1996/09/23 New Non-Metallic Fans For 360 And 440 Frame Generators {1404,7002,1356}
1996/09/23 New Plastic Outlet Sleeve Used On 3208 Engines {1380}
1996/09/23 Addition Of Sleeve And Removal Of Setscrew Prevents Binding Of Control Shaft {1266,7558}
1996/09/23 New Bracket Available To Support Gas Engine Ignition Group Wiring Harness Assembly {1408,1550}
1996/09/23 New Circuit Board Assembly And Modules Improve Serviceability And Reliability {1418,1550}
1996/09/23 Introduction Of New Spark Ignited Single-Cylinder Gasket Kits {7555}
1996/09/23 Caterpillar Now Has Parts Support For Previously Non-Supported Custom Parts {7567}
1996/09/23 Turbocharger Water Wash Procedure {1052}
1996/09/23 Improved Air Cleaner Element Assembly Used {1054}
1996/09/23 New Soot-Filter Available For Use With Air Cleaner Group {1055,1050}
1996/09/23 New Wastegate Shaft And Bushing Provides Better Wear Resistance {1057}
1996/09/23 New Rotocoil Assembly Used In Valve Rocker Arm Groups {1109}
1996/09/23 Caterpillar High Efficiency Fuel Filters Help Provide Maximum Fuel Pump And Fuel Injector Life {1261}
1996/09/23 New Clamp Assembly Used In Engine Oil Lines Groups {1307}