Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems{1105}
Usage:
3406, And 3408 Truck Engines
Description of Change: Remanufactured cylinder heads will be assembled with chrome plated valve stems. This change will provide longer valve life in severe applications.
Adaptable To: The new chrome plated part numbers are 108-5902 Intake Valve and 106-1111 Exhaust Valve. They will be used on all remanufactured 3406 and 3408 Cylinder Heads with date code of February 1994 (NMDR) or later.
NOTE: All Remanufactured 3400 Cylinder Heads with date code prior to that listed above will have valve part numbers as listed in the chart below.
Caterpillar Information System:
1994/09/01 Improved Fuel Pump Bonnet Seal Has Better Heat Resistance{1251}
1994/09/01 New Fuel Priming Pump Assembly Used In Fuel Priming Pump Group{1258}
1994/09/01 New Fuel Priming Pump And Gasket Used{1258}
1994/09/01 Caterpillar Introduces New Long Life Heavy Duty Engine Coolant{1395}
1994/08/30 Use Only Clean Engine Oil To Lubricate Unit Injector O-Rings{1290}
1994/08/30 Changing Complete Sets Of Fuel Injection Pump Groups May Not Fix Low Power Problems{1251}
1994/08/30 New Water Seals Used in 3400 Head Assemblies{1124}
1994/08/30 New Exhaust Manifolds, Longer Mounting Studs And Spacers Used In Exhaust Manifold Groups{1059}
1994/08/30 Longer Studs And Spacers Used To Retain Exhaust Manifolds{1059}
1994/08/30 False Logging Of Diagnostic Codes 100-01 (FC46) "Low Oil Pressure" And 100-11 (FC46) "Very Low Oil Pressure"{1902}
1994/08/30 New Oil Pressure Regulating Valve Used In Oil Filter Group{1315}
1994/08/30 New 310A Jake Brake® Available{1119}
1994/09/01 Turbocharger Popping Noise Does Not Cause Damage{1052}
1994/09/01 Additional Parts Now Provided With 0R-4180 Remanufactured Cylinder Head Assembly{1100}
1994/09/01 New Seals In Pump Fastener Group And Fuel Injection Pump Group Have Improved Heat Set Resistance{1251}
1994/09/01 Impeller Appearance On Remanufactured 3406 Water Pump{1364,1361}
1994/09/01 New Gasket Provides Improved Sealing Between Air Compressor And Drive{1803}
1994/09/01 117-7213 Control Group (Vehicle Speed Filter) Available For Field Installation{1914}
1994/09/01 Caterpillar Legendary Service Literature Catalog SELD0811 Updated{0374}
1994/10/01 Catalytic Converter/Muffler Identification{1062,1091}
1994/10/01 New Rear Crankshaft Seal Groups Available{1161}
1994/10/01 Corrections To 3176B/3406E Electronic Troubleshooting Guide{0374,1901}
1994/10/01 Check 9U-7242 Valve Spring Compressor Plate For Correct Thickness{0703}
1994/10/01 New Engine Crankshaft Rubber Damper Assembly Uses Improved Rubber Material{1205}