Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage{1059,1061}
Usage:
631D, 633D, 637D, 637D (PP) Tractors;
3408 Truck Engines
Description of Change: New exhaust manifold groups and air lines groups are used on the above models. The new groups use manifolds and stainless steel tubes with slip-joints instead of the former flanges with gaskets. These changes in manifold design will prevent leakage of exhaust gas at the manifold-to-air lines connection at the rear of the engine.
Adaptable As: Direct replacement when the new parts are used together.
Caterpillar Information System:
1979/08/27 New Governor Housing Assembly Used In Governor And Fuel Injection Pump Group{1253,1264}
1979/08/27 Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/20 New Rear Cover And Gasket Used On Water Pump{1361,1350}
1979/08/20 Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning{1053}
1979/08/20 Flex Plate Kits Are Now Available For Vickers Vane-Type Hydraulic Pumps{5055}
1979/08/13 Sealant Now Used On Pipe Plugs At The Bottom Of The Oil Filter Base Assembly To Prevent Oil Leakage{1306}
1979/08/13 New Cylinder Head Gasket Has Smaller Diameter Cylinder Openings To Improve Location Of Combustion Seal Ring{1101,1201}
1979/08/13 New 35-Ampere Alternator Used On Some Engines In Caterpillar Equipment{1405,1406}
1979/08/13 6V14 Hydraulic Cylinder Group Now Available{0621}
1979/08/13 5P936 Liner Seat Insert Available For 6.25 Bore Engine Blocks With Counterbores{1217}
1979/08/13 New Seal Used Under Retaining Bushing For Fuel Injection Pump Bonnet{1251,1253,1286}
1979/08/13 Splash Shields Added To Caterpillar Fuel Injection Test Bench{0652}
1979/08/27 Service Kit Is Available For Woodward UG8 Governor{1289}
1979/08/27 6V190 Clamp Is Available For Use On Sleeve Metering Fuel Systems{0626,1250}
1979/08/27 Engine Oil Viscosity Changed To SAE 10W/30 For Shipment From All U. S. Factories{1318}
1979/08/27 New Rocker Arms And Rocker Arm Shaft Have Improved Lubrication{1102}
1979/08/27 New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/09/03 Only One Dowel Pin Is Now Used To Hold The Thrust Bearing In The Correct Position{1053,1052}
1979/09/03 Follow Recommendations Given In Special Instructions For Modification Of Rollover Protective Structures (ROPS) At All Times{7323,7325}
1979/09/03 Quick Disconnect Coupling On Optional Modification Of 5P4150 Nozzle Tester Permits Faster Exchange Of Adapters{0651,1254}
1979/09/03 Different Mounting Hole Locations In Ring Gear Plate Assembly And Rotor Assembly For BrakeSaver{1155}
1979/09/10 Insulation Sleeve For 5P7360 Tach Generator Now Available {7462}
1979/09/10 Stronger Bolt Now Used With Exhaust Manifold {1059,1307}
1979/09/10 6V2055 High Vacuum Grease Gives Better Oil Seal {1052,1053,1077,0682}