1991/09/30 Caterpillar


Use 7E5888 Fuel Injection Pump Housing As A Service Replacement For Pre 1991 Fuel Injection Pump Housings{1253}

Usage:


3406B ( 6TB ) Industrial, ( 4TB ) Marine, ( 2WB ) Generator Set, ( 70V ) Vehicular, ( 7FB, 8TC, 4MG, 3ZJ, 5KJ, 2EK ) Truck Engines.

Description of Change: The 7E5888 Fuel Injection Pump Housing (used on 1991 engines) is service replacement for pre 1991 fuel injection pump housings on the above 3406B Engines. The 7E5888 Fuel Injection Pump Housing has a larger diameter camshaft bearing bore than the pre 1991 pump housings. Therefore, thicker bearings are required (to work with the smaller diameter pump camshaft) when using the 1991 pump housing to replace a pre 1991 pump housing.

Adaptable To: The 7E5888 Fuel Injection Pump Housing, 8E5237 Thrust Race (1), 4P0984 Front Cam Bearing (2), 4P0985 Center Cam Bearing (3), and 4P0986 Rear Cam Bearing (4) are service replacements for the fuel injection pump housings on the 3406B Engines identified in the chart.


Location of 8E5237 Thrust Race (1), 4P0984 Front Cam Bearing (2), 4P0985 Center Cam Bearing (3), and 4P0986 Rear Cam Bearing (4) in the 7E5888 Housing.

Caterpillar Information System:

1991/09/30 Air Filter Maintenance{1051,1054}
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 "Off-Size" Bearing Kits Available For Parts Service{1052,7551}
1991/09/30 Updated List Of Charts And Decals Available For Lubrication And Maintenance Intervals{0374,0375,7500,7557,7581}
1991/09/30 Excessively Long Bucket And Ripper Tips May Cause Failures{6800}
1991/09/23 New Auxiliary Water Pump Groups Used{1371}
1991/09/23 New Pickup Assembly In Sump Pump Group Attachment Removes More Oil From Oil Pan{1324,1302}
1991/09/23 New Piston Skirt Used In Piston Group{1214}
1991/09/23 New Tube Assembly Used In Exhaust Bypass Group Attachment{1057}
1991/09/23 Sintered Bronze Replacement Bushings For Delco-Remy Electric Starting Motors Do Not Require Machining{1453,1454,1465}
1991/09/23 Turbocharger Bearings Available For Garrett (Formerly AiResearch) Turbochargers Changed{1053}
1991/09/23 Self-Exciting Alternator May Not Charge After Periods Of Storage{1405,1406}
1991/09/30 New Piston Crown And Piston Skirt Used In Basic Piston Group; New Cooling Jet Used In Cylinder Block Group{1214,1331}
1991/10/07 Assembly Procedure For Duo-Cone Seals Changed{7561,0645}
1991/10/07 New SR 4 Generator Rewind Data Available{4450}
1991/10/14 New Locking Bolt Used In Flywheel Groups{1156}
1991/10/14 New Teflon Coated 4P9388 Cylinder Seal Available{1216}
1991/10/14 New Components Used In Fuel Injection Pump Groups{1290}
1991/10/14 7S3161 Valve Lifter Has Three Different Designs{1209}
1991/10/14 No Gaskets Used With Aluminum Flywheel Housings{1157}
1991/10/14 New Piston Pin Retainer Used{1225}
1991/10/14 End Clearance Specification Changed For Front Shaft In Fuel Injection Control{1251,1258}
1991/10/21 New Oil Pump Used As Service Replacement {3310}
1991/10/21 How To Repair Oil Leaks Between Front Housing And Spacer Deck {1221}
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