1980/03/12 Caterpillar

Crankshaft Rear Seal And Wear Sleeve Are Now Serviced As A Group Instead Of Separate Parts

Usage:

3304, 3306, D330C, And D333C Industrial And Marine Engines;
1673C And 3306 Truck Engines

Description of Change: The crankshaft rear seal and wear sleeve, used in the above engines, are now serviced as a group.

As a group, the 9S3111 Seal comes installed on the 2P3858 Sleeve from the factory. Lubricant is put on the seal during assembly. Also, the group is sealed in plastic for shipment. This will keep the contact surfaces clean and prevent damage to the seal during shipment.

Formerly, the crankshaft rear seal and wear sleeve were serviced as separate parts and had to be assembled at the time of installation. It was some times possible to damage the seal when it was installed on the wear sleeve. Also, it was possible for the separate parts to be damaged during shipment.

Adaptable As: The new 1N3216 Crankshaft Rear Seal Group is a direct replacement for the 9S3111 Seal and 2P3858 Sleeve.

See Special Instruction Form No. SMHS7100 for installation procedures. DO NOT disassemble the group before installation. This will prevent possible damage to the seal.

Caterpillar Information System:

1980/03/12 List Of Service Publications

1980/03/12 Spacer Plate Block Group Used For Parts Service Of Block Group With Counterbore Design

1980/03/12 New Fuel Injection Lines And Clamps Prevent Stresses And Contact Which Can Cause Leakage

1980/03/12 Stronger Braces Used Between Air Cleaner And Engine

1980/03/12 Connecting Rod Changes And Replacement Information

1980/03/12 Visual Inspection Of Main And Connecting Rod Bearings

1980/03/12 Inspect Regulator Cover Assembly When Overcooling Is A Problem

1980/02/27 Plunger Movement Must Be Adjusted When New Rack Shut-Off Solenoid Is Installed

1980/02/27 Warning: Avoid Use Of Fuel Mixtures Of High Volatility. If You Are Exposed To Such Mixtures, Be Aware Of The Hazards Involved And Take Proper Precautions

1980/02/27 How To Check Operation Of Hydramechanical Shutoffs On D379B, D398B, D399 Engines

1980/02/27 New Attachment Air Compressor Group and Lines Groups Have Improved Design

1980/02/27 New Piston Groups Have The Piston Pin Bore Off-Center, Away From The Thrust Side Of The Piston

1980/03/12 New Control Valve Body

1980/04/09 6V2023 Flow Check Adapter Group Is Available

1980/04/09 Dowtherm 209 Full-Fill Coolant

1980/04/09 Different Water Temperature Regulators Now Used To Prevent Overheating

1980/04/09 Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines

1980/04/09 Important: Use Only 12 Volts Direct Current To Boost Start 3208 Truck Engines Equipped With Exhaust Gas Recirculation Systems

1980/04/09 Caution: Outboard Bearing Must Be Removed From Extended Shaft Of Front Power Takeoff Before The Engine Is Moved

1980/04/30 Main And Connecting Rod Bearings With Cavitation Erosion Can Be Used Again

1980/04/30 Wrong Installation Of Oil Cooler Gasket Can Cause High Oil Temperatures

1980/04/30 Boring Machine, Adapter Groups And Sleeves Available For Repair Of Damaged Cylinder Blocks

1980/04/30 Crankcase Capacity Increased And New Oil Level Gauges Used; Specifications For Conversion Of Existing Gauges

1980/04/30 List Of Service Publications