Oversize Bearings For Turbocharger Center Housings Available {1053,1052}
Usage:
3300, 3400 and 3500 Families of Engines with Turbochargers
Two new oversize bearings are available for turbocharger center housings in the turbochargers on the above engines. The new oversize bearings will allow more center housings to be repaired. The new 7C7446 Bearing has a standard inside diameter and a 0.51 mm (.020") oversize outside diameter. The 7C7447 Bearing has a 0.25 mm (.010") undersize inside diameter and a 0.51 mm (.020") oversize outside diameter. The following list includes the part numbers of the center housings that the new bearings can be used in.
Caterpillar Information System:
1987/03/30 Piston Cooling Jets No Longer Used In Some Applications {1200}
1987/03/30 New Service Tools Available {0600}
1987/03/23 New Clamps And Grommets For Turbocharger Oil Lines{1300,1307,1052}
1987/03/23 Gasket Removed From Flywheel Housing Cover Groups{1157}
1987/03/23 Improved Fuel Transfer Pump Cover; Weep Hole Moved{1255}
1987/03/23 Pleasure Craft Cruise Kits Available{1000}
1987/03/23 Some Components Of The Transmission Mounting Group For Allison AT540 And AT545 Transmissions Are No Longer Serviced By Caterpillar{3279,1013,3009}
1987/03/23 Identification Of External Terminals On Alternators{1405,1406,1400}
1987/03/23 Dispenser Available For Shop Towels{0600}
1987/03/23 5P957 And 5P3514 Coolant And Battery Tester{0786,1395,1401}
1987/03/23 Cooling System Conditioner{1395,1350}
1987/03/23 Easy Five-Minute Coolant Conditioner Test With 8T5296 Coolant Conditioner Test Kit{1395,0786}
1987/03/30 New Washer Used In Fuel Transfer Pump Group {1256}
1987/03/30 Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts {1104,1103}
1987/03/30 Oversize Piston Ring Seal Available For Clutch Group {3302,3300}
1987/04/06 Stop Engine If There Is A Turbocharger Bearing Failure{1052,1318}
1987/04/06 Improved Governor Performance{1264,1250}
1987/04/06 Engine Identification Plate Information For 3406B (PEEC) Truck Engines{0782,1250}
1987/04/06 Rerate Plates And 4W5140 Engine Information Plate Available For Use When Rerating 3406B (PEEC) Truck Engines{0782,1250}
1987/04/06 New Idler Shaft And Sealing Washers Used In Front Gears And Accessory Drives{1206,1207}
1987/04/06 Longer Bolts With Spacers Now Used On Exhaust Manifolds{1059}
1987/04/13 Checking Injector Synchronization On Engines Equipped With New 11.0 mm Injectors{1290}
1987/04/13 Initial Start Of Engine Using An EGB29P Governor/Actuator After Filling With Oil{1264}
1987/04/20 New Pipe Used Between Turbocharger And Aftercooler; Improved Turbocharger Compressor Housing Has Two Retaining Bolt Holes{1050,1061,1079}