Injector Timing Standardized {1272,1290}
Usage:
D11N ( 74Z ),
776B ( 6JC ) Tractors;
777B ( 3NF, 4YC ),
785 ( 8GB ),
789 ( 9ZC ) Trucks
The injector timing dimension for the above models has been standardized at 87.40 mm (3.441"). This dimension is adaptable to earlier product only when the 9Y1785 (0R2836) or 7E3382 (0R2921) Injector is used. See the chart for the applicable "0T" fuel specification for the models in this article.
Caterpillar Information System:
1990/08/20 Improvements To Reduce Black Exhaust Smoke {1088,1052,1065,1264,1278,1290,7525}
1990/08/20 New Aftercooler Gaskets Help Maintain Constant Bolt Torque {1063,1079}
1990/08/13 Stronger Fan Guard Resists Vibration Damage{1360}
1990/08/13 Changes To Exhaust Manifold Expansion Sleeves And Bolts{1059}
1990/08/13 Effective Dates, Serial Numbers And Features OF PEEC Personality Modules{1900,1902}
1990/08/13 Spacer Available To Eliminate Cracks On Ignition Coil Mounting Bracket{1554}
1990/08/06 New Caterpillar Parts Identification Label{7567}
1990/08/06 Rotor Shaft Length Changed{4457,4472}
1990/08/06 New Rotary Solenoid (Brushless Torque Motor) Used In PEEC Engines{1909}
1990/08/06 Coolant Loss In 3406B Truck Engines{1395,1355,1100,1124,1353,1216}
1990/07/30 New Throttle Shaft Bearing Sleeves Used In Governor Housing Assembly{1365}
1990/07/30 New Pistons Used{1225,1214}
1990/08/20 New Manifolds And Bellows Assemblies Used In Exhaust Manifold Group {1059}
1990/09/03 New Latching Fuel Solenoid Assemblies{1259}
1990/09/03 New Service Tools Available{0600,0700}
1990/09/10 New Stainless Steel Plug Used In Aftercooler Core Assembly{1064}
1990/09/10 Engine Oil Lines Group Available To Relocate Oil Filter On 3208 Marine Engines{1318}
1990/09/10 New Alternator Drive Vee Belt Available{1357,1405}
1990/09/10 New Remanufactured 0R6183 Control Group (Personality Module) Available{1902}
1990/09/10 New Timing Specifications{1552}
1990/09/10 Voltage Regulator Droop Connections Are Shown Incorrectly In Service Manuals{4475}
1990/09/17 Special Instruction SEHS9177, Has Adjustment Procedure For Door Latch Assemblies And Strikers {7308}
1990/09/17 New Cylinder Head Group Available For Landfill Applications {1100,1104,1105}
1990/09/17 Be Sure To Use Correct Piston Pin With New Pistons {1225,1214}