Water Vent Line Improved To Withstand Engine Vibrations {1070,1380}
Usage:
3208 Industrial (3Z) and Marine (1Z) Engines With Water Cooled Turbochargers
Description of Change: The water vent line on these engines, from the water cooled turbocharger to the expansion tank, has been changed from a one-piece tube to two tubes connected together by a rubber hose. The hose absorbs engine vibrations and reduces the possibility of tube failure.
Adaptable To: The new parts can be installed as direct replacements for the former tube assembly. The former 7N9818 Tube Assembly has been canceled and replaced by the following new parts.
- One-8N4784 Tube Assembly
- One-7C3399 Tube Assembly
- One-6K713 Hose
- Two-1P4278 Clamp
- One-7C3399 Tube Assembly
The illustration shows the location of the new parts. tighten the two clamps as shown.
Installation of the new vent line parts.
Caterpillar Information System:
1986/07/28 Extended Oil And Oil Filter Change Intervals {1300,1318}
1986/07/28 Oil Cooler Gasket Has Improved Material {1300,1378}
1986/07/28 SIMS Reports Must Be Correctly Completed To Be Entered In Data System {0331,0336}
1986/07/28 Less Expensive 12-Volt Converter Available For Radios {1400,1401}
1986/07/28 Material Safety Data Sheets For Parts Sold By Caterpillar That Contain Hazardous Chemicals {0353,0680}
1986/07/28 Change Wiring To Prevent Low Oil Pressure Shutdown Immediately After Start-Up {4450}
1986/07/14 Use Care When Cleaning Clutch Discs{3155}
1986/07/07 Improved 8T3216 Anvil Assembly, Part Of Track Shop Press Tooling {0729,0700}
1986/07/07 New Start Switch Used {1416,1453}
1986/07/07 New Engine Timing Indicator Group Available {0781,0782}
1986/07/07 Larger Capacity Air Conditioner Receivers (Dryers) Available With Quick Disconnect Fittings {1802,7320}
1986/07/07 New Flexible Coupling Used {3252,3303,3300}
1986/08/04 New Pressure Gauges (With Tonnage Scales) Available For Caterpillar Service Tool Manual And Electric Hydraulic Pumps {0770,0615,0616}
1986/08/18 Inspection And Replacement Of Fluid Conductors{1274,1307,5057,7554}
1986/08/18 Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/08/18 Silicone Water Seal Available{1101}
1986/09/01 Bearing Information For SR4 Generators{4471}
1986/09/01 New Material Used For Disc In Valve Assemblies Of Fuel Transfer Pump Groups{1256}
1986/09/01 Inspection And Replacement Of Parts In The Portable Track Repair Groups{0729,4171}
1986/09/01 Do Not Strike Pin Ends To Loosen Sealed And Lubricated Track{4175}
1986/09/01 New 9W6370 Electronic Speed Switch Adapter Cable Available For Use With 8T5200 Signal Generator/Counter Group{0600}
1986/09/01 Heavy-Duty Line Of Batteries Available To U.S. Dealers{1400,1401}
1986/09/08 Product Support Literature For Military Machines{7567}
1986/09/08 Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}