Larger Diameter Washer Is Used To Hold Air Transfer Pipe In Aftercooler Flange{1063,1058}
Usage:
637D Scrapers (20W, 21W, 22W, 70W, 23W, 88X);
3306 Industrial Engines (66D, 70R)
Description of Change: A 1.26 inch (32.0 mm) diameter washer is now used in place of the former 1.12 inch (28.5 mm) diameter washer to hold the air transfer pipe in the aftercooler flange (see the Illustration). With the former washer it was possible for vibration to cause the air transfer pipe to come loose and fall out.
Location of 6N8863 Washer.
Adaptable As: The new, larger diameter 6N8863 Washer is a direct replacement for the former 8M7145 Washer.
Caterpillar Information System:
1979/03/12 Check Valve Must Be Adjusted Correctly To Let Fuel Flow Through The Return Line And Back To The Tank{1275,1253,1274}
1979/03/12 New Design Fuel Injection Valve Body Used In Fuel Injection Lines Group{1252,1254}
1979/03/12 SAE 15W/40 Multiviscosity Oil Can Be Used In Engines, Transmissions And Final Drives{1318,3067,3179,4070}
1979/03/12 New Manifold Assembly Gives More Room For The Lifting Eye{1059}
1979/03/12 Retroreflective Tape Makes Phototach Kit Easier To Read{0651,0653}
1979/03/12 New Larger Capacity Water Separator Is Available{1250}
1979/03/05 Engine Mounted Exhaust Brake Systems Can Be Used To Extend Service Brake Life{1050}
1979/03/05 New Oil Pan Assembly Uses An O-Ring And Plug For A Better Seal{1302}
1979/03/05 Improvements Made To Fuel Injection Pump And Governor Group{1253,1281,1286}
1979/03/05 New Fuel Injection Nozzles Are Used In 3208 Engines{1254}
1979/03/05 New Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218,1219}
1979/03/05 New Engine Cylinder Block Used{1201}
1979/03/12 Magneto Improvements{1413}
1979/03/12 New Fuel Injection Lines Groups Use A Different Fuel Injection Nozzle Assembly{1254}
1979/03/19 Maintenance Procedures For Extended FPTO Life On 3408 And 3412 Marine Engines{3055}
1979/03/19 New Oil Filter And Filter Base Assemblies{1306,1378,1318}
1979/03/19 Ether Starting Aid System Improves Cold Weather Starts{1456}
1979/03/19 Revision To Guideline For Reusable Parts Is Available{1105,1108,0374}
1979/03/19 8L4525 Flange Is Available Again For Parts Service Of 3192 Marine Transmissions{3314}
1979/03/19 New Woodward Governor Control Used On Diesel Engines; Former Control Now Used On Gas Engines Only{1265}
1979/03/26 Service Parts Available For the 5P8585 Leak Detector{0651}
1979/03/26 Window Cover Kit Now Available For ENM Service Meters{7478}
1979/03/26 Information About The Use Of Earlier Cylinder Heads And Liners With Spacer Plate Cylinder Blocks; List Of Earlier Articles{0600,1101,1162,1201,1216,1221}
1979/03/26 Drawing Available For FT1439 Lifting Beam{0644}