Water Vent Line Improved To Withstand Engine Vibrations
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:
1986/08/01 Oil Cooler Gasket Has Improved Material
1986/07/01 Standard Diameter Crankshafts Meeting Marine Society Approval Requirements Are Available Through Caterpillar Remanufactured Products Program
1986/07/01 Improvements For Caterpillar 3161 Governors
1986/07/01 Update Information For Caterpillar Fuel Injection Equipment Test Stand
1986/07/01 Caterpillar Mini Cutting Torch Available
1986/07/01 Changes Have Been Made To 0T Microfiche (Fuel Setting And Related Information)
1986/07/01 New Oil Pump Gears Used
1986/07/01 Use Oxygen Meter To Adjust Low Emission Engines
1986/07/01 New Start Switch Used
1986/07/01 Valve Lash Adjustment Interval Is Changed
1986/07/01 Service Parts Containing Asbestos Are Now Labeled
1986/07/01 Increase Piston Reuse With Keystone Piston Ring Gauge Group
1986/08/01 Change Wiring To Prevent Low Oil Pressure Shutdown Immediately After Start-Up
1986/08/01 Silicone Water Seal Available
1986/08/01 Extended Oil And Oil Filter Change Intervals
1986/08/01 Inspection And Replacement Of Fluid Conductors
1986/08/01 SIMS Reports Must Be Correctly Completed To Be Entered In Data System
1986/09/01 Bearing Information For SR4 Generators
1986/09/01 Heavy-Duty Line Of Batteries Available To U.S. Dealers
1986/09/01 New Material Used For Disc In Valve Assemblies In Fuel Transfer Pump Groups
1986/09/01 Bearing Failures On Engines Due To Lack Of Lubrication
1986/09/01 New 9W6370 Electronic Speed Switch Adapter Cable Available For Use With 8T5200 Signal Generator/Counter Group
1986/10/01 Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed
1986/10/01 Use Correct Compression Seal Washer (Gas Seal) On 7000 Series Fuel Injection Nozzles