Input Shaft And Flange Available As An Assembly; Makes Alignment Easier{3303}
Usage:
7271 Marine Transmissions
Description of Change: An input shaft assembly is now available for 7271 Marine Transmissions. This shaft assembly is machined after it is assembled to better control the runout on the flange face. For alignment purposes, a "V" mark is put on both the shaft and the flange.
Formerly, there was more runout when the shaft was assembled to the flange. This made it more difficult to align the engine and the transmission.
Adaptable As: The new 7T8467 Input Shaft Assembly is available for parts service. The 6T7889 Shaft and 9G7103 Flange are still available separately.
Caterpillar Information System:
1985/03/11 Dowtherm 209 Full-Fill Coolant{1350}
1985/03/11 New Cooling System Temperature Regulator Available{1355}
1985/03/11 New Crankshaft Seal Groups Used On More 3400 Series Engines{1160,1161}
1985/03/11 Installation Of Heli-Coils In Holes With Damaged Threads{0600,0670,0671}
1985/03/11 Cross Link Between Fuel Racks Has Smoother Surface{1250,1257}
1985/03/11 New Air Cleaner Element Creates Less Restriction{1054}
1985/03/04 Do Not Weld On Painted Surfaces{0350,0679}
1985/03/04 Exhaust Clamp Nut Now Serviced Separately{1061}
1985/03/04 3208 Truck Engine Service Manual Available In Spanish{0375}
1985/03/04 Discontinued D.C. Generators Replaced By Alternators{1404,1405}
1985/03/04 New Water Cooled Exhaust Manifold Elbows And Rear Manifold Are Used{1059}
1985/03/04 3406B Truck Engines Have Been Improved For 1985{1000,1050,1052,1100,1200,1250}
1985/03/18 New Service Tools Available{0600}
1985/03/18 Internal Seals In 7000 Series Fuel Injection Nozzles Cannot Be Replaced{1254}
1985/03/18 New Service Manual Binders Are Made From Thicker Material{0375}
1985/03/18 Remanufactured Bare Cylinder Heads (U.S. And Canada){1101,7754}
1985/03/18 Improved Oil Ring For Pistons Eliminates Expander Problems That Lead To Ring Breakage During Installation{1215}
1985/03/25 Changes To Turbocharged Truck Engines For 1985{1000,1050,1052,1100,1200,1250,1252}
1985/03/25 New Main Shaft Bearing Assembly Has Reduced End Play{3306}
1985/04/01 Use Of Fuel Injection Timing Information In The "Fuel Setting And Related Information" Microfiche{0600,0782,1250}
1985/04/01 Improved Vibration Damper Guard Group Has Flexible Mounting{1205,1200}
1985/04/01 New Compression Washers (Gas Seals) Used On 7000 Series Fuel Injection Nozzles{1254,1250}
1985/04/01 Information For Ordering kPa or Dual Scale Gauges{0600}
1985/04/01 Check Cylinder Block And Head Flatness Whenever There Is A Head Gasket Failure{1100,1200}