1981/07/06 Caterpillar


New Turbocharger, Turbocharger Oil Line And Aftercooler Air Lines Group Used{1052}

Usage:


3408 (DITA) Industrial Engines ( 67U)

Description of Change: New turbocharger, turbocharger oil lines group and aftercooler air lines group are used on the direct injection, turbocharged, and aftercooled 3408 Industrial Engines.

The new turbocharger has a larger diameter compressor, turbine, and housing.

The new turbocharger operates at a lower rpm, but moves the same volume of air as the former turbocharger. It was possible for the compressor blades in the former turbocharger to be damaged by the centrifugal (movement away from center or axis) force during operation at the higher rpm.

The new turbocharger oil lines group and aftercooler air lines group are necessary for installation of the new turbocharger.

Adaptable As: The new parts, when used together, are direct replacements for the former parts as shown in the charts. Use a new 1S4295 Gasket during installation of a new turbocharger. The part number for this gasket did not change.

Caterpillar Information System:

1981/07/06 6V3176 Relief Valve Available For Center Hole Double Acting Hydraulic Cylinders{0623}
1981/06/29 Some Parts Books And Microfiche Show Wrong Governor And Fuel Pump Drive Groups For Specific Engines{1288,0374}
1981/06/29 Tube Added To Prevent Air Leakage In Pressure Regulator{3012,3165,3166,3186}
1981/06/29 New Gasket Used For End Cover On Inlet Manifold{1058}
1981/06/29 Use 6V4828 Snap Ring Pliers To Remove Snap Rings From Turbocharger Housing{0610,1052}
1981/06/29 New Inlet And Exhaust Valves And Valve Guides Have Tighter Fit To Prevent Corrosion And Guide Wear{1104,1105,1101,1103,1108,1109}
1981/06/29 New Gasket Used In Front Housing Group{1166,1162,1151}
1981/06/29 Ring Now Used To Hold Bearing In Auxiliary Drive Group{1165}
1981/06/22 Larger Air Cleaner Used For Less Restriction To Air Flow{1051}
1981/06/22 Cylinder Liners Can Now Be Reconditioned Automatically{0664,0674,1216}
1981/06/22 6V3145 Leveler Now Available{0644}
1981/06/15 Plastic Cases Now Available For Electronic Testing And Diagnostic Equipment{0630,0650}
1981/07/06 Mailing Of Engine News And Truck Engine News Microfiche Libraries{0374}
1981/07/06 All Size Identification Marks On Engine Bearings Are Now Shown In Millimeters{1000,1230,1219,1203}
1981/07/06 New Retainers Used To Hold Oil Pump Output Tube In Manifold{3314}
1981/07/06 Single Connector Prevents Leakage From Fuel Filter Lines Groups{1274,1262}
1981/07/06 Stronger Fitting Used With Sending Unit For Oil Pressure Gauge{7457,7451,3310,3314}
1981/07/06 Use 6V4068 Tool Group To Machine Camshaft Thrust Face{0663,1253}
1981/07/06 6V4133 Wedge Bracket Makes Cylinder Liner Removal Easier{0621}
1981/07/06 Use 6V4172 Injector Sleeve When You Clean Fuel Injectors{0622,1250}
1981/07/13 Add New Information To Two Current Guidelines For Reusable Parts{0374}
1981/07/13 Use 6V4805 Valve Seat Extractor Group To Remove Valve Seat Inserts{0621}
1981/07/13 Top Rings For Pistons Have Two Designs{1215,1214}
1981/07/13 Coolant Conditioner Elements And Their Capacities{1350}
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