1980/12/15 Caterpillar

New Turbocharger, Turbocharger Oil Lines Group And Aftercooler Air Lines Group Used{1052,1058,1063,1307,1309}

Usage:

Direct Injection, Turbocharged And Aftercooled 3408 Truck Engines (28V)

Description of Change: A new turbocharger, turbocharger oil lines group and aftercooler air lines group are used on the direct injection, turbocharged and aftercooled 3408 Truck Engines (28V).

Location of tube assemblies in turbocharger oil lines group.

Location of coupling, support and bolts in aftercooler air lines group.

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, used together, are direct replacements for the former parts as shown in the chart.

Caterpillar Information System:

1980/12/15 New Control Valve Group Used To Prevent Ratchet-Type Noise And Rough Clutch Engagement{3313}

1980/12/15 Be Sure To Cut The Center Gasket Even With Top Surface Of Oil Pan Sections To Prevent Oil Leakage{1302}

1980/12/15 New Bearing Sizes And Identification Codes For AiResearch Remanufactured Turbocharger Cartridges{1053}

1980/12/01 6V4085 Torque Multiplier Group Available{0614}

1980/12/01 Inspect All Engine Oil And Fuel Filter Elements Before Installation{1000,1261,1318}

1980/12/01 Different O-Ring Seal Now Used On The Oil Pump Suction Tube{1307,1304}

1980/12/01 New Front Housing Assembly And Gaskets Used{1162,1166,1151}

1980/12/01 New Service Handle Kit Permits Cab Door To Be Opened From Inside While Locked (Fastened With Lock){7308,7301}

1980/12/01 Larger Plug Used In The Ends Of The Rocker Arm Shaft Assembly{1102}

1980/12/01 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage And Damage To Manifold Gaskets And Mounting Studs{1059,1061}

1980/12/01 Direct Inquiry Service Information Retrieval System (SIRS) Available To U.S. And Canadian Dealers{0374}

1980/11/24 Replacement Wheel Available For Service Of 6V97 Engine Stand Group{0626}

1980/12/15 Replacement Timing Belts And Variable Belt For Fuel Injection Test Benches Available From Caterpillar{0652,1250}

1980/12/22 6V4019 Camshaft Pilot Group Is Available{0622,1210,1211,1201}

1980/12/22 Tires Are Filled With Nitrogen (N2){4203}

1980/12/22 Exhaust Elbow Support Improved{1059,1061}

1980/12/22 New Oil Pan Gasket Has Silicone Bead For Better Seal{1302}

1980/12/22 Wrong Turbocharger Group Shown In Parts Book{1052,0374}

1981/01/12 Improvements Made To 5P9718 And 6V186 Disc Pads Used During Gasket Removal{0675,0670}

1981/01/19 New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}

1981/01/19 Thicker Layer Of Chrome Now Used On Governor Spring Guide To Extend Its Service Life{1264}

1981/01/19 6V3141 And 6V3142 Puller Plates Available For Removal Of Tube And Gland From Front Suspension Groups{7201,0621}

1981/01/19 Inspection And Test Procedures To Follow When Fuel Ratio Control Does Not Operate Correctly{1278}

1981/01/19 New Sure Seal Electrical Connectors Used In Electrical Wiring Harnesses; Use 6V3000 Seal Repair Kit To Repair Sure Seal Electrical Connectors{0611,1408}