New, Corrosion Resistant Water Pump Shaft Available{1389,1361}
Usage:
All 3400 Series Engines
Description of Change: A new water pump shaft is available for all 3400 Series Engines. The new shaft is more resistant to corrosion than the former shaft.
Adaptable To: The new 7W1821 Water Pump Shaft is a direct replacement for the former 6N139 Water Pump Shaft in all applications.
Caterpillar Information System:
1985/08/05 Correct Location And Rotation Of Front Timing Gears{1204,1206}
1985/08/05 Valve Mechanism Groups Use New Lifter Assemblies{1209}
1985/08/05 New Fuel Pump And Governor Drive Shaft Has Pressure Lubrication For Splines{1288}
1985/08/05 Engine Rotation Can Be Changed On 3500 Series Engines{1000}
1985/08/05 New Service Tools Available{0600}
1985/07/15 Engine Air Inlet Adapters{1050}
1985/07/15 Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15 Special Instruction Available To Salvage Governor Housing{1287}
1985/07/15 Change To Astern Drive Shaft Reduces Horsepower Loss And Improves Ahead Clutch Cooling{3351}
1985/07/15 Hardened Washers Used In Engine Oil Lines; Locks Removed From Oil Pump{1307}
1985/07/15 Problems Caused By Electric Governors That Are Not Supplied By Caterpillar{1289,1257}
1985/07/15 Extra Injection Nozzle Clamp Helps Prevent Injection Nozzle Damage{1252}
1985/08/05 Rough Handling Can Move Droop Lever Out Of Position{1264}
1985/08/05 Thread Sealant Must Be Used On Air Compressor Mounting Bracket Bolts{1800,1803}
1985/08/05 Stronger Push Rod Used{1208}
1985/08/05 Head Gasket Replacement Procedure{0350,1100}
1985/08/05 Remanufactured Cylinder Head Group For NA Engines Must Not Be Installed On T Engines{1100,1108}
1985/08/05 Counterweight Improves Stability Of 8S9902 Jib Group (Track) Tool Cart{0632}
1985/08/05 Correct Operation Of Disconnect Switches{1411}
1985/08/12 Tachometer Drive Is Now An Attachment{1166,1250,7450,7452,7487}
1985/08/12 Eliminating Interference Between Governor Housing And Tachometer Drive{1264,7487}
1985/08/12 Location Of 6V5135 Setscrews In Fuel Pump Group{1250}
1985/08/12 Halogen Head And Flood Lamps Are Now Available{7309}
1985/08/12 The 8T3115 Portable Track Lubricator Can Be Used To Drain And Fill Track Link Joints{0645,4169,4170}