1994/01/01 Caterpillar

New Valve Cover Gasket Used{1107}

Usage:

3116 Truck Engines

Description of Change: A new valve cover gasket is used. The new gasket is made from a cork and rubber material. The former gasket was made from a steel core material with gasket material bonded to both sides.

Adaptable To: The new 105-1542 Valve Cover Gasket is a direct replacement for the former 9Y-8103 Valve Cover Gasket in all 3116 engine applications. The former gasket is canceled.

Before installing a new valve cover gasket, thoroughly clean the gasket surfaces of the valve cover and inlet manifold. Use 5H-2471 Cement or 8T-9021 Adhesive to hold the new gasket in place in the valve cover.

Valve Cover Bolt Tightening Sequence

Tighten the valve cover bolts in sequence shown in the illustration to a torque of 12 ± 3 (9 ± 2 lb ft).

Caterpillar Information System:

1993/12/01 Uses, Characteristics, And Removal of Castrol Tarp®, Tarp-B®, And 4164®{0374}

1993/12/01 Procedure To Prevent Moisture From Collecting In The Hose Between The Air Inlet Manifold And Transducer Module (Boost Sensor){1917}

1993/12/01 Clarify Usage Of Parts Service Cylinder Head Gaskets{1124}

1993/12/01 Replacement Of Earlier Truck Engines In General Motors Topkick And Kodiak Trucks{1000}

1993/12/01 New Control Assemblies Used In Fuel Injection Control Groups{1298}

1993/11/01 8T-8697 Electronic Control Analyzer Programmer (ECAP) Improved

1993/11/01 New Dynamic Fuel Ratio Control (FRC) Settings Provide Improved Engine Response

1993/11/01 Low Power Complaints Caused By 9X7793 Rack Sensor Non-Linearity On Electronic Engines

1993/11/01 On Highway Dynamic Engine Response Test

1993/10/01 Fuel Consumption Versus Ambient Temperature

1993/10/01 Camshaft Drive Gear Inspection

1993/10/01 Longer Bolts Required With New Spacer Block

1994/01/01 Cold Weather Operation{0374}

1994/01/01 Exhaust Valve Bridge Should Not Be Adjusted{1119}

1994/01/01 Possible Interference Problem With 9U-7241 Valve Spring Compressor Group{0703}

1994/01/01 Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}

1994/01/01 Flywheel Housing to Cylinder Block Joint Improvements{1157,1201}

1994/01/01 New Piston Body Has Improved Bonding Between Iron Band And Aluminum Body{1214}

1994/01/01 Fuel Injection Pump Improvements{1251}

1994/01/01 New Pedal Mounted Throttle Position Sensor Available{1913}

1994/01/01 List of Service Publications{0374}

1994/02/01 New Turbocharger Models Have Left-Hand Threads On Compressor Nut And Turbine Shaft{1053,1052}

1994/02/01 Remove Internal Components From 4P-8454 Cover Assembly{1309}

1994/02/01 September 1993 Personality Module Release Improvements{1902}