1994/09/01 Caterpillar

Improved Knock (Detonation) Sensor Group Replaces Detonation Sensor {1559}

Usage:

G3508 (4WD, 9TG),
G3512 (7NJ, 5JD),
G3516 (8LD, 4EK) Engines

An improved knock (detonation) sensor group is available for the above engines. The new 112-9273 Knock Sensor Group is a direct replacement for the former 9X-4836 Electronic Control Group (Detonation Sensor).

Caterpillar Information System:

1994/09/01 New Gasket Used In The Water Lines Group {1380}

1994/09/01 New Plunger In Fuel Pressure Regulating Valve {1250}

1994/09/01 New Cylinder Liner, Spacer Plate, Spacer Plate Gasket, And Cylinder Head Gasket Used {1216,1221,1124}

1994/09/01 New Gears And Pipe Plugs In Auxiliary Drive Group {1150,1165}

1994/09/01 New Gasket Provides Improved Sealing Between Air Compressor And Drive {1803}

1994/09/01 New PSG Governor With Pneumatic Air Head Control Available {1264}

1994/09/01 New Seals In Pump Fastener Group And Fuel Injection Pump Group Have Improved Heat Set Resistance {1251}

1994/09/01 Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems {1105}

1994/09/01 Different Valves And Valve Seats Used In Remanufactured Cylinder Head Groups {1103,1105}

1994/09/01 Longer Studs And Spacers Used To Retain Exhaust Manifolds {1059}

1994/09/01 New Turbocharger Increases G3412 Engine Performance {1052}

1994/09/01 New Fuel Priming Pump Assembly Used In Fuel Priming Pump Group {1258}

1994/09/01 New Operation And Maintenance Videos Available {0374}

1994/09/01 Turbocharger Turbine Nozzle Reusability Information {1052}

1994/09/01 Use Thread Lock On Bolts That Fasten Aftercooler Housing To Cylinder Block {1063}

1994/09/01 New Rear Camshaft Segments With Stronger Camshaft Flange Used {1210}

1994/09/01 Reworking Diesel And Gas Cylinder Heads On 6.25 Bore V Engines {1101}

1994/09/01 Different Emergency Stop Push Buttons for Electronic Modular Control Panel II (EMCP II) {4490,4450}

1994/10/01 New Rear Crankshaft Seal Groups Available {1161}

1994/10/01 Fuel Priming Pump Can Be Installed On Either Left Or Right Side Service Fuel Filter Groups {1258}

1994/10/01 New Engine Crankshaft Rubber Damper Assembly Uses Improved Rubber Material {1205}

1994/10/01 Adjustment Of Air/Fuel Ratio Control Setting {1278}

1994/10/01 New Governor Control Assembly to Improve Acuator Stability {1289}

1994/10/01 New Spark Plug Tightening Specifications For Engines With Canadian Standards Association (CSA) Ignitions {1550}