1996/01/23 Caterpillar

New Air Fuel Ratio Control (FARC) Air Line Routing For 3306 Truck Engines In Kenworth Trucks{1278}

Usage:

Description of Change: The new FARC air line routing is designed specifically for the Kenworth trucks that use the rear intake port in the 3306 Cylinder Head. The new routing will eliminate moisture entry into the FARC housing, preventing its components from internal corrosion and future failure.

Adaptable To: See the chart and illustration for components used in the new FARC air line routing for Kenworth Trucks, that use the rear intake port in the 3306 Cylinder Head.

Illustration of new FARC air line routing

1. Remove the 8T-6762 Plug (2).

2. Install the 6K-1972 Elbow (2).

3. Remove the 2N-1287 Elbow (3).

4. Install the 8T-6764 Plug (3).

5. Install the 067-6495 Union (4), to the end of the 1W-2128 Tube Assembly (4).

6. Install the 9N-3040 Hose Assembly (1), to the 067-6495 Union (4), and to the 6K-1972 Elbow (2).

Caterpillar Information System:

1996/01/23 Tamper Resistant Plugs And Tamper Resistant Bolts Used To Prevent Changes To Air Fuel Ratio Control (AFRC) Setting{1278,1287}

1996/01/23 New Valve Cover Gasket{1107}

1996/01/23 Caterpillar Electronic Technician (CAT ET){0700}

1996/01/23 Mixing Caterpillar Long Life Coolant/Antifreeze (LLCA) With Conventional Cat Diesel Engine Antifreeze/Coolant And/Or Other Commercially Available Diesel Engine Antifreeze/Coolants Is Not Recommended{1395}

1995/12/15 Flashing 3176B And 3406E Personality Modules With NOV95 Software {1901}

1995/12/15 Software Update May Be Required When Changing Fuel Injectors {1900,1902,1290}

1995/12/15 New Stronger Elbow Used In Turbocharger Oil Lines Groups {1307}

1995/12/15 Engine Replacement {1000}

1995/12/15 Rocker Arm Modification To Provide Increased Lubrication To Camshaft Roller Followers (Valve Lifters) {1209}

1995/12/15 New Valve Guides Available {1104}

1995/12/15 Mechanical Unit Injector Identification Code {1290}

1995/12/15 Correct Valve Rocker Arm And Valve Push Rod Combinations {1123,1208}

1996/01/23 Governor Spring Guide Press Depth{1287,1284}

1996/01/23 Remanufactured Product Update{7754}

1996/01/23 Corrupted Fleet Trip Data{1900}

1996/01/23 False Logging Of Engine Retarder Diagnostic Codes{1900,1901,1119}

1996/01/23 Basic Electronic Troubleshooting Guide Is Now Available{1900}

1996/02/26 New Engine Information Plates Require More Information{1000}

1996/02/26 Fuel Injector Sleeve Replacement Tooling{0703,1125}

1996/02/26 Lubricant Used On Cylinder Head Bolts Changed{1100}

1996/02/26 New Engine Cylinder Head Injector Sleeve Used In Both Mechanical Unit Injection (MUI) And Hydraulic Electronic Unit Injection (HEUI) Engines{1125}

1996/02/26 New Material Used In O-Rings And Optional New Block Side Cover Replacement{1201}

1996/02/26 Modification For 9U-7256 Guide Assembly (Camshaft){1210,0701,0702,0703}

1996/02/26 New Oil Pan Resists Cracking{1302}