1990/01/01 Caterpillar


Improved Gaskets And Covers Used In Cover Groups, Connection Group And Water Lines Groups; New Clips Used In Water Lines Groups

Usage:


3606, 3608, 3612, 3616 Engines

Description of Change: Improved gaskets and covers are used in the cover groups, water lines group and connection group. The improved gaskets can be identified by the pink-tan color. And the gaskets do not have a "bead" on the face. The flatness of the covers have been improved. New clips are used in the water lines group. The clips improve the clamping forces on the gasket under the aftercooler water lines.

Adaptable To: The improved 9Y7082 Gasket (1) and 7W0805 Cover (2) are used in the 1W0884 and 1W0906 Central Structure Cover Groups. Also, the improved 9Y7082 Gasket (1) is used in the 1W0882, 1W0916, 4W0369 and 7W4986 Water Lines Groups on 3612 and 3616 Engines.

NOTE: If leaks reoccur around the former 7W0805 Cover, an improved cover should be installed.


Illustration 1. Location of 9Y7082 Gasket and 7W0805 Cover in central structure cover groups.


Illustration 2. Location of 9Y7082 Gasket in water lines group.

The improved 9Y7084 Gasket (3) and 1W0129 Right Hand Upper Cover (4) are used in the 1W0135 and 1W0836 Central Structure Cover Group. Also, the improved gasket (3) is used in the 7C9402 Water Connection Group on 3606 and 3608 Engines.

The improved 9Y7083 Gasket (5) and 2W8313 Cover (6) are used in the 1W0135 and 1W0836 Central Structure Cover Group on 3606 and 3608 Engines.


Illustration 3. Location of 9Y7084 Gasket, 1W0129 Right Hand Upper Cover, 9Y7083 Gasket and 2W8313 Cover in central structure cover group.

The new 9X2646 Clips (7) and 9X2647 Clips (8) are used in the 1W0811, 1W0847, 4W0373 and 7W3783 Water Lines Group.


Illustration 4. Location of clips.

All the above components are adaptable to earlier 3600 Engines.

Caterpillar Information System:

1990/01/01 Paper Liner Available For Centrifugal Oil Filters
1990/01/01 New Seal Group Used In Seawater Pump
1989/12/01 List of Service Publications
1989/12/01 Improved Turbocharger Wash Water Lines Group Available On Engines Powered By Residual (Heavy) Fuel
1989/12/01 Cooling System Drain Valves Available
1989/12/01 New Spark Plug Used In Ignition Groups
1989/12/01 Spark Plug Gasket Available
1989/12/01 New Flanges Used And Gaskets Added To Water Cooled Turbocharger Exhaust Connections
1989/12/01 Modification Of 2W1054 Screen Assembly For Use During Dynamometer Testing
1989/12/01 Additional Information For Checking Valve Camshaft Timing
1989/12/01 New Camshaft And Lifter Kits Available For Slipper Type Cam Followers (Valve Lifters)
1989/12/01 4C4213 Insulation Tester for Electrical Power Generation
1990/01/01 Improved Valve And Injector Jam Nut Used In Valve Rocker Arm Group
1990/01/01 Unit Injector Tips Now Have An Improved Brazing Technique
1990/01/01 Service Element Available For Flexible Coupling Group
1990/01/01 New Seal Used In Governor Fastener Group
1990/01/01 New Fuel Return Valve Prevents Siphoning
1990/01/01 Separate Service Manual Microfiche Library Available For Engines Only
1990/01/01 New Cooling System Cleaner Available For All Engines
1990/02/01 Identification Of Turbocharger And Fuel System Components
1990/02/01 New Exhaust Manifold Stud Available
1990/02/01 New Oil Cooler Gasket Has Bead On Only One Side
1990/02/01 New Oil Filler Group, Oil Level Guide Group And Contactor Group Used
1990/03/01 Improvements Made To Water Pumps; New Groups/Parts Available For Certain Applications
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