New Seal Used Under Retaining Bushing For Fuel Injection Pump Bonnet{1251,1253,1286}
Usage:
All 3304 and 3306 Engines With Sleeve Metering Fuel Systems
Description of Change: A different seal is now used under the retaining bushing for the fuel injection pump bonnet on the above models. The new seal has a round cross section in comparison with the square cross section of the former seal. The round cross section of the new seal will make it easier to install without damage. Formerly, some seals were damaged during installation.
Adaptable As: The new 6F6672 Seal is a direct replacement for the former 4N223 Seal in this application.
Caterpillar Information System:
1979/08/13 Splash Shields Added To Caterpillar Fuel Injection Test Bench{0652}
1979/08/06 Changes Made To 8S2243 And 8S4613 Wrenches Used On Fuel Injection Pumps{0612,1251}
1979/08/06 Front Accessory Drive Group Changed; New Drive Parts For Fuel Transfer Pump{1256,1206}
1979/08/06 When Timing The Engine, Be Sure The Timing Bolt Is Installed In The Correct Hole In The Flywheel{1156,1251,1281}
1979/08/06 Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff{3055}
1979/08/06 New Tools Are Available For Gasket Removal And Surface Reconditioning{0670}
1979/07/09 New Cylinder Liner Has Improved Design To Keep Liner Temperatures Lower{1216}
1979/07/09 New Shaft Assembly Used In Governor Group And New Coupling Assembly Used In Drive Group For Governor And Fuel Injection Pump{1264,1288}
1979/07/09 New Valve Cover Gasket Has Better Material{1107}
1979/07/09 Caution Label Added To 5P4150 Nozzle Testing Group{0651}
1979/07/02 Fuel Injection Line For Injection Test Bench Is Available From Caterpillar{0652,1250}
1979/07/02 Improved Engine Design Uses Cylinder Block With Spacer Plate And New Crankshaft Thrust Plates{1000}
1979/08/13 5P936 Liner Seat Insert Available For 6.25 Bore Engine Blocks With Counterbores{1217}
1979/08/13 6V14 Hydraulic Cylinder Group Now Available{0621}
1979/08/13 New 35-Ampere Alternator Used On Some Engines In Caterpillar Equipment{1405,1406}
1979/08/13 New Cylinder Head Gasket Has Smaller Diameter Cylinder Openings To Improve Location Of Combustion Seal Ring{1101,1201}
1979/08/13 Sealant Now Used On Pipe Plugs At The Bottom Of The Oil Filter Base Assembly To Prevent Oil Leakage{1306}
1979/08/20 Flex Plate Kits Are Now Available For Vickers Vane-Type Hydraulic Pumps{5055}
1979/08/20 Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning{1053}
1979/08/20 New Rear Cover And Gasket Used On Water Pump{1361,1350}
1979/08/27 Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27 New Governor Housing Assembly Used In Governor And Fuel Injection Pump Group{1253,1264}
1979/08/27 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage{1059,1061}
1979/08/27 Service Kit Is Available For Woodward UG8 Governor{1289}