1986/08/01 Caterpillar

Extended Oil And Oil Filter Change Intervals

Usage:

3304 Natural Gas Engines

Description of Change: Changes have been made to the 3304 Natural Gas Engine to increase the engine oil and oil filter element change interval. The change is possible because an oil pan with more capacity and larger oil filter element is now used.

The new engine oil and filter element change interval is 750 SMU. The refill capacity for the 3304 Engine including the oil filter element is 31.2 liters (8.25 U.S. gal).

Adaptable As: The changes to increase the engine oil and oil filter element change intervals are in effect with 3304 Natural Gas Engines (37Y1019) and can be adapted to all 3304 Natural Gas Engines. The parts shown in the charts, when used together, can be used to increase the engine oil and oil filter element change intervals.

Location of the S1591 Bolt and 5M2894 Washer.

Caterpillar Information System:

1986/08/01 Silicone Water Seal Available

1986/08/01 Change Wiring To Prevent Low Oil Pressure Shutdown Immediately After Start-Up

1986/08/01 Water Vent Line Improved To Withstand Engine Vibrations

1986/08/01 Oil Cooler Gasket Has Improved Material

1986/07/01 Standard Diameter Crankshafts Meeting Marine Society Approval Requirements Are Available Through Caterpillar Remanufactured Products Program

1986/07/01 Improvements For Caterpillar 3161 Governors

1986/07/01 Update Information For Caterpillar Fuel Injection Equipment Test Stand

1986/07/01 Caterpillar Mini Cutting Torch Available

1986/07/01 Changes Have Been Made To 0T Microfiche (Fuel Setting And Related Information)

1986/07/01 New Oil Pump Gears Used

1986/07/01 Use Oxygen Meter To Adjust Low Emission Engines

1986/07/01 New Start Switch Used

1986/08/01 Inspection And Replacement Of Fluid Conductors

1986/08/01 SIMS Reports Must Be Correctly Completed To Be Entered In Data System

1986/09/01 Bearing Information For SR4 Generators

1986/09/01 Heavy-Duty Line Of Batteries Available To U.S. Dealers

1986/09/01 New Material Used For Disc In Valve Assemblies In Fuel Transfer Pump Groups

1986/09/01 Bearing Failures On Engines Due To Lack Of Lubrication

1986/09/01 New 9W6370 Electronic Speed Switch Adapter Cable Available For Use With 8T5200 Signal Generator/Counter Group

1986/10/01 Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed

1986/10/01 Use Correct Compression Seal Washer (Gas Seal) On 7000 Series Fuel Injection Nozzles

1986/10/01 Improved V-Belts For Alternator

1986/10/01 Longer Adjusting Screw And Jamnut Available For Use In Valve Rocker Arms

1986/10/01 More Flexible Lockwire Used With Nylon Seals For Sealing Critical Areas