1985/08/01 Caterpillar


Stronger Push Rod Used

Usage:


3500 Series Engines

Description of Change: A new stronger push rod is used in all 3500 Series Engines. A stronger push rod is required for future engine development.

Adaptable As: The new stronger 4W6682 Push Rod is a direct replacement for the former 7N3431 Push Rod which is canceled.

Caterpillar Information System:

1985/08/01 Use Care When Handling Water Seals For Cylinder Head Spacer Plates
1985/08/01 New Type Of Paint Used On Some Caterpillar Products; Do Not Weld On Painted Surfaces
1985/08/01 New, Corrosion Resistant Water Pump Shaft Available
1985/08/01 Hardened Washers Used In Engine Oil Lines; Locks Removed From Oil Pump
1985/08/01 Change To Astern Drive Shaft Reduces Horsepower Loss And Improves Ahead Clutch Cooling
1985/08/01 Problems Caused By Electric Governors That Are Not Supplied By Caterpillar
1985/08/01 Extra Injection Nozzle Clamp Helps Prevent Injection Nozzle Damage
1985/08/01 Rough Handling Can Move Droop Lever Out Of Position
1985/08/01 Eliminating Interference Between Governor Housing And Tachometer Drive
1985/08/01 Thread Sealant Must Be Used On Air Compressor Mounting Bracket Bolts
1985/08/01 New Service Tools Available
1985/08/01 Head Gasket Replacement Procedure
1985/08/01 Location Of 6V5135 Setscrews In Fuel Pump Group
1985/08/01 Valve Mechanism Groups Use New Lifter Assemblies
1985/08/01 Special Instruction Available To Salvage Governor Housing
1985/08/01 New Fuel Pump And Governor Drive Shaft Has Pressure Lubrication For Splines
1985/08/01 Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/09/01 Adjusting Pneumatic Speed Control For Correct Operation
1985/09/01 Changes To Fuel Systems
1985/09/01 Use Correct Valves When Rebuilding Engines
1985/09/01 Oil Pump Groups Improved
1985/09/01 New Engine Pressure Group Available
1985/09/01 Dual Element Air Cleaner Group Available
1985/09/01 New Precombustion Chamber Seal Available
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