New Top Piston Ring Has Plasma-Coated Face
Usage:
D353 Industrial and Marine Engines
Description of Change: A new top piston ring is used in D353 Industrial and Marine Engines. The new piston ring is made of a harder material and has a plasma-coated face. This gives the new ring more resistance to wear and corrosion than the former chromium-plated rings.
Adaptable As: The new 1N3592 Piston Ring is a direct replacement for the former 6N6639 Piston Ring which is canceled.
Caterpillar Information System:
1980/04/30 Different Vibration Damper Now Used
1980/04/30 New 1N3270 Auxiliary Drive Group Available As Attachment
1980/04/30 Improvements Made To Water Separator Groups
1980/04/30 Hardened Washers Now Used On Bolts For Fan Shroud
1980/04/30 List Of Service Publications
1980/04/30 Crankcase Capacity Increased And New Oil Level Gauges Used; Specifications For Conversion Of Existing Gauges
1980/04/30 Boring Machine, Adapter Groups And Sleeves Available For Repair Of Damaged Cylinder Blocks
1980/04/30 Wrong Installation Of Oil Cooler Gasket Can Cause High Oil Temperatures
1980/04/30 Main And Connecting Rod Bearings With Cavitation Erosion Can Be Used Again
1980/04/09 Caution: Outboard Bearing Must Be Removed From Extended Shaft Of Front Power Takeoff Before The Engine Is Moved
1980/04/09 Important: Use Only 12 Volts Direct Current To Boost Start 3208 Truck Engines Equipped With Exhaust Gas Recirculation Systems
1980/04/09 Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines
1980/04/30 New Liner Seat Insert For No. 1 And No. 4 Cylinders Of D353 Engines
1980/05/14 New 6V2120 Spline Sprocket Improves Depth Control Of 5P4175 Boring Tool Group
1980/05/14 Changes To 9S240 Rack Position Tool Group; Revision To Special Instructions
1980/05/14 Turbine Wheel Shroud Design Changed; Snap Ring No Longer Used
1980/05/14 Use The FT1525 Alignment Pin And FT1526 Fixture When Reconditioning Earlier 3208 Sleeve Metering Fuel Systems
1980/05/14 Changes To Oil Level Gauge Group Improve Accuracy Of Oil Level Indications
1980/05/14 List Of Service Publications
1980/05/14 Boss Can Be Removed From Spacer Plate Cylinder Block To Get Clearance For Oil Filler Tube
1980/06/04 Possible Cause Of A Low Idle Misfire And/Or Backfire
1980/06/04 Improvements To Engine Oil Lines Group Makes Installation Easier; Prevents Reverse Connections
1980/06/04 New Plug With Straight-Threads Used In Engine Variable Timing Drive
1980/06/04 Improved Procedure Can Be Used To Adjust Voltage Gain