1991/09/23 Caterpillar


Turbocharger Bearings Available For Garrett (Formerly AiResearch) Turbochargers Changed{1053}

Usage:


SUPPLEMENT: 03/23/92

SERVICE MAGAZINE; September 23, 1991; Page 12; "Turbocharger Bearings available for Garrett (Formerly AiResearch) Turbochargers Changed".

Disregard this article. Make reference to the article with the same title in this issue.

--------------- END SUPPLEMENT ---------------

SUPPLEMENT: 10/14/91

Service Magazine; September 23, 1991; Page 12; "Turbocharger Bearings Available For Garrett (Formerly AiResearch) Turbochargers Changed". Add the Note and illustration that follow to the article just before Chart A.

NOTE: The two washers (1) included in these bearing kits should be installed on the turbine wheel side (2) of the sleeve bearings. See the illustration. Other turbocharger models using wear washers will NOT necessarily be located in the same positions. See the Disassembly and Assembly Module in the appropriate Service Manual for installation instructions for a particular turbocharger. The bearing retainer (snap) rings on ALL turbochargers should be installed with the smooth side of the ring toward the journal bearing.


Location of the two washers (1) and the turbine wheel end (2).

--------------- END SUPPLEMENT ---------------

Reference: Service Magazine; August 20, 1979; Page 6; "Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning."

Turbocharger bearing for the Garrett (formerly AiResearch) turbochargers have changed. All 0.13 mm (.005 in) undersized bearings have been canceled. Two 0.51 mm (.020 in) oversized bearings have been added for extended housing service. Chart A identifies the bearing that have been canceled. Chart B identifies all te serviceable bearings for Garrett Turbochargers.

Caterpillar Information System:

1991/09/23 Self-Exciting Alternator May Not Charge After Periods Of Storage{1405,1406}
1991/09/16 New Cylinder Block And Crankshaft Used{1201,1202,1231}
1991/09/09 New Camshafts Provide Increased Power, Reduced Fuel Consumption, Reduced Exhaust Temperature, And Reduced Emissions{1210}
1991/09/02 New Flange Assembly And O-ring Seal Prevent Oil Leakage Between Magneto And Magneto Drive Housing{1552,1556}
1991/09/02 Fuel Nozzle Orifice Erosion{1254,1250}
1991/09/02 Fuel System Parts Information{1251,1264,1250}
1991/09/02 California Laws Target Excessive Smoke{1250}
1991/09/02 Service Tips For Cleaning Air-To-Air Aftercooling Systems{1063}
1991/09/02 Service Tips For Turbocharger Removal And Installation{1052}
1991/09/02 Always Use A Digital Voltmeter For Battery Testing{0785,0709,1401,7468}
1991/08/26 New Fuel Injection Lines Used On 3306B (63Z) Truck Engines {1252}
1991/08/26 Rectifier and Suppressor Changes to 807, 808, 809 and 815 Frame Generators {4465,4466}
1991/09/23 Sintered Bronze Replacement Bushings For Delco-Remy Electric Starting Motors Do Not Require Machining{1453,1454,1465}
1991/09/23 New Tube Assembly Used In Exhaust Bypass Group Attachment{1057}
1991/09/23 New Piston Skirt Used In Piston Group{1214}
1991/09/23 New Pickup Assembly In Sump Pump Group Attachment Removes More Oil From Oil Pan{1324,1302}
1991/09/23 New Auxiliary Water Pump Groups Used{1371}
1991/09/30 Excessively Long Bucket And Ripper Tips May Cause Failures{6800}
1991/09/30 Updated List Of Charts And Decals Available For Lubrication And Maintenance Intervals{0374,0375,7500,7557,7581}
1991/09/30 "Off-Size" Bearing Kits Available For Parts Service{1052,7551}
1991/09/30 Compression Ratio Increased On Remanufactured OR1094 & OR1095 Engines To Reduce Amount Of White Smoke On Cold Weather Start-Ups{1000,1254,1290}
1991/09/30 Air Filter Maintenance{1051,1054}
1991/09/30 Use 7E5888 Fuel Injection Pump Housing As A Service Replacement For Pre 1991 Fuel Injection Pump Housings{1253}
1991/09/30 New Piston Crown And Piston Skirt Used In Basic Piston Group; New Cooling Jet Used In Cylinder Block Group{1214,1331}
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