Compression Ratio Increased On Remanufactured OR1094 & OR1095 Engines To Reduce Amount Of White Smoke On Cold Weather Start-Ups{1000,1254,1290}
Usage:
The compression ratio for OR1094 and OR1095 Remanufactured 3208 Engines has been increased from 16.5:1 to 17.5:1. The higher compression ratio will reduce excessive amounts of white smoke during engine start-up in cold weather.
This change is effective with Remanufactured 3208...93Z8241 Engines. The new reference serial number for the OR1094 and OR1095 Remanufactured 3208 Engines is 90N69293.
Caterpillar Information System:
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}
1991/09/16 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}
1991/09/30 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}
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}