1998/10/01 Caterpillar

New Carburetor Assembly For G300 Series Engines{1266}

Usage:

G342C (31B),
G353 (46B),
G379A (72B),
G398A (73B) Engines

Description of Change: A new carburetor assembly has been released for the above engines. This new carburetor assembly replaces the former carburetor assembly. The new carburetor assembly can accommodate various gaseous fuels and air to fuel ratios by using interchangeable gas valves and jets. The new carburetor assembly is also designed for use with turbocharged applications.

NOTE: Some modifications to the fuel inlet lines may be necessary to install the new carburetor assembly.

The standard 154-9681 Valve (1), and 154-9683 Jet (2) shown in the new 154-9627 Carburetor Assembly.

Adaptable To: The new 154-9627 Carburetor Assembly is a direct replacement for the former 9Y-5302 and 9Y-5301 Carburetor Assemblies. The 154-9681 Valve (1) and 154-9683 Jet (2) are used in the new carburetor assembly.

Caterpillar Information System:

1998/10/01 Flash File Bulletin Board System To Be Discontinued{1920}

1998/10/01 New Injector Sleeve Bore Gauge And Tube Brush Available For Injector Sleeve Bore; New Grommet Available For Unit Injector Electrical Connection{1713,1290}

1998/10/01 New Seawater Pump Manifold Improves Priming{1371}

1998/10/01 Improved 133-9096 Diaphragm Assembly Available For Catalyst Engines{1266}

1998/10/01 Troubleshooting Reminder For Engine Low Power Or Intermittent Low Power Symptoms{1250,1252,1256,1260,1261,1273}

1998/09/01 Fabricated Spark Plug Gapping Tool {0766,1555}

1998/09/01 New Cylinder Liner Sleeve Used {1216}

1998/09/01 New Exhaust Valves Have Improved Resistance To Radial Cracking {1105}

1998/09/01 3600 Diesel Marine Monitoring System Owner's Manual Has Been Revised {0374}

1998/09/01 Turbocharger Vent Lines Important For Engine Reliability {1380}

1998/09/01 Some Benefits Of The New 146-2588 Spark Plug {1555}

1998/09/01 New Gear And New Shaft Assemblies Used In Scavenge Oil Pump Groups {1312}

1998/10/01 New Coil Kits Replace Shielded Transformer{1554,1561}

1998/10/01 New Seal Assembly Used In Turbocharger Group{1052}

1998/10/01 New High Inertia Camshaft Drive Gear Available{1212}

1998/10/01 New Connecting Rod Assembly Provides Increased Rod Eye Bushing Retention{1218}

1998/10/01 New Spacer Plate Gasket Provides Improved Sealing{1221}

1998/10/01 Oil Filter Groups For All Commercial 3500 Series Engines Have Been Improved{1306}

1998/10/01 New Gear And New Shaft Assemblies Used In Scavenge Oil Pump Groups{1312}

1998/10/01 3600 High Exhaust Temperature Guided Diagnostics Available In SIS{0372}

1998/10/01 Limited Number Of 105-4365 Electronic Actuator Groups Remain In Parts System{1250}

1998/10/01 3600 Engines Shipped With Oil in the Actuators{1265}

1998/10/01 New Stronger Oil Filter Base Used In Oil Filter Groups{1306}

1998/10/01 Premium Wire Harness Schematics Are Now Available{1408}