New Cylinder Liner Available{1201}
Usage:
3400 Series Engines
Description of Change: A new cylinder liner is available for use on the engines listed above. The new cylinder liner decreases the liner-to-block diametral clearance from .305 ± .102 mm (.0120 ± .0040") to .152 ± .102 mm (.0060 ± .0040"). The change will help prevent O-ring seal fretting caused by cylinder liner motion.
Adaptable As: The new 7W3550 Liner is in effect on the engines shown in the chart and can be adapted to all earlier engines.
Caterpillar Information System:
1986/02/03 Service Tools Now Available For Charging Fire Suppression Systems{0647,7401}
1986/02/03 Special Instructions Packaged With Turbocharger Cartridge Repair Kits May Be Incorrect{1053}
1986/02/03 High Silicates In Antifreeze{1350}
1986/02/03 Time Delay (Relay) Switches Should Be Tested Before They Are Returned For Warranty Claims{7426}
1986/02/03 New Oil Viscosity Recommendations For All 7200 Series Marine Transmissions{3351}
1986/02/03 Extend Exciter Stator Life In Humid, Salty Environments{4453,4454,4450}
1986/02/03 5N563 Self-Excited SR4 Generators Use Different Type Regulator And A Power Autotransformer{4450}
1986/01/27 Check 5P9729 Track Repair Group For Correct Nuts{0729,0700}
1986/01/27 New Service Tools Available{0600}
1986/01/27 Uprated 3500 Series Engines Use Stronger Pistons, New Connecting Rods And New Piston Pins{1214,1218,1225}
1986/01/27 Stronger Cylinder Heads Used{1100}
1986/01/27 Uprated 3500 Series Engines Now Available{1000}
1986/02/10 Blue Lens Available For Beacon Lamp{7328,7309}
1986/02/17 New Service Parts Available To Repair Scraper Components{6201,6203,6204,6207,6212}
1986/02/17 New 8T2998 Lubricant Available{0645,1210}
1986/02/17 New Fuel Injector Available To Reduce Smoke At Low RPM and Loads{1050,1254}
1986/02/17 New Clip Added To Water Lines Group{1380,1350}
1986/02/24 New Track Link Assembly And Sprocket Segments Used {4171,4155}
1986/02/24 Air-To-Air Aftercooler Test Group Available {0768,1063,0600}
1986/02/24 Longer Bolts Used In Turbocharger Air Lines Groups {1052}
1986/02/24 Truck Engine Performance Checklist Available For North American Dealers {0337,0372}
1986/02/24 Cleaning Instructions For Oil Coolers With Rubber End Sheets {1366,1375,1376,1378}
1986/03/10 Nylon Seals Used On Lockwire To Seal Critical Areas; Parts Service Seals Available For NACD Dealers{1257,1264}
1986/03/10 Maintenance Free Batteries{1401}