1990/10/22 Caterpillar

Setscrew And Nut Available For Fuel Setting And Injector Synchronization {1257}

Usage:

1.1 Liter Family Of Engines

Reference: Service Magazine; July 2, 1990; Page 9; "Engine Rack Control Assemblies Improved" for 1.1 Liter Family Of Engines.

The 7X7889 Setscrew and 5C8312 Nut are used for both the fuel (power) setting and injector synchronization in the 7C1514 (3114 Engines) and 7C1516 (3116 Engines) Rack Control Assemblies. Both the setscrew and the nut can be used as direct replacements for the injector synchronization screw and nut on the former rack control assemblies, and are available for parts service. However, the 7X7889 Setscrew is 6.0 mm (.24") longer than the former setscrew.

NOTE: The fuel setting screw (power screw) for the former rack control assembly with the worm gear drive is not available.

7W6989 Fuel Injection Control Group. (1) 7C1516 Rack Control Assembly. (2) 7X7889 Setscrew. (3) 5C8312 Nut. (A) Parts used for injector synchronization. (B) Parts used for fuel setting.

Caterpillar Information System:

1990/10/22 Correct Procedure To Check For Grounds On Woodward 9905 Series, 2301A Control; Correction For Service Manual Module; 2301A Electric Governors (Load Sharing) For Generator Set And Industrial Engines; Form SENR3585-01 {1289}

1990/10/22 Engine Service Training Literature Uses New Form Number {0370,0374}

1990/10/22 New 4C5084 Oil Filter Cutter Replaces Former 6V7905 Filter Cutter {1318,1261,5068}

1990/10/22 4C6600 Battery Voltmeter For Determining Battery Percent Of Charge {7468,0785,1401}

1990/10/22 Improved 3T2357 Horn Switch, 3T3453 Starting Aid Switch, 3T3947 Start Switch, 3T8514 Test Switch Assemblies {1416,1456}

1990/10/15 New Temperature Regulators; Regulator Service Hours Changed{1330,0770,1355,7527,7543}

1990/10/15 Additional Clip And Hardware Prevent Damage To Fuel Line Of 4W6887 Instrument Panel{1261}

1990/10/15 Be Sure To Use Only 5P3975 Rubber Lubricant On The Core Assembly End Seals In Folded Core Or Multiple Row Module Radiators{1353,1351}

1990/10/08 New Pump Group With Bolt Dampers Used In Oil Pump Group{1304}

1990/10/08 Price Adjustments On Service Program Modules{1902,0782}

1990/10/08 New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads{1105,1101}

1990/10/08 Improved 4J3815 Gasket Helps Prevent Oil And Air Leaks In Hydraulic Tank Mounting And Filler Groups{5065}

1990/10/22 Improved 7C1757 Exhaust Manifold Group {1059}

1990/10/22 Front Trunnion Bolts May Come Loose {1153,1154}

1990/10/22 Increased Capacity Oil Sumps Require Additional Oil And Different Maintenance Interval {1302,1318,7524,7525}

1990/10/22 New "On Engine" Adjustment Procedure For 3161 Woodward Governor {1264,0782}

1990/10/29 New CE (Caterpillar Environmental) Family Of Metal-Shell Connectors Used{7553}

1990/10/29 New Temperature Regulators Prevent Engine Overheating{1355}

1990/10/29 Governor Control Motor Polarity May Require A Change{1265,1408,7556}

1990/10/29 New Bearing Kits Used In Turbocharger Cartridge Groups{1052,7551}

1990/10/29 Modification Of 1U7791 Valve Seat Driver{0782,1103}

1990/10/29 New Cylinder Head Gasket And Higher Cylinder Head Bolt Torque{1124,1101}

1990/10/29 Improved 7W7730 Cylinder Head Gasket Provides Better Sealing Capability{1124}

1990/11/05 New Composite Halogen Headlights And Floodlights Available{1429,1434}