1986/05/01 Caterpillar


New Wire Assemblies And Spark Plug Insulators Improve Service Life Of Ignition System

Usage:


G342C, G379, G398, G399 Natural Gas Engines

Description of Change: Two new wire assemblies, with new spark plug insulators, are available for use in the above engines. The new spark plug insulators are made of Teflon® to be more resistant to heat damage and to improve the service life of the ignition system.

Adaptable To: The new 7W8665 and 7W8666 Wire Assemblies are direct replacements for the former 7N6297 and 2W5269 Wire Assemblies respectively.

For parts service, order one complete 7W8665 Wire Assembly for each cylinder on engines equipped with an Altronic® ignition system. Order one complete 7W8666 Wire Assembly for each cylinder on engines equipped with a Colt® ignition system. For parts service of individual components, see the chart.

Caterpillar Information System:

1986/05/01 Cylinder Liner Seat Insert Available
1986/05/01 Be Sure The Polarity Of The Electrical Connector On EG3P Woodward Actuator Assembly Is Correct
1986/05/01 New Alternators Are Self-Energizing And Have Built-In Regulators
1986/04/01 Remanufactured Short Block Available For 3204 Industrial Engines
1986/04/01 New Index Lists Engine Special Instructions By SMCS Code
1986/04/01 New Bracket Used In Air Compressor Lines Group
1986/04/01 Bleed Screw Washer (Seal) Must Be Replaced If Bleed Screw Removed From Fuel Nozzle
1986/04/01 Adjust Bridge Whenever Valve Clearance Adjustments Are Made
1986/04/01 Fuel Injection Timing Changed To 15° With New 3.5° Timing Advance
1986/04/01 Incorrect Connection Of Battery Charger Can Open Circuit Breaker And Damage Woodward 2301 Governor Control
1986/04/01 Troubleshooting Solid State Suppressors
1986/03/01 New Clip Added To Water Lines Group
1986/05/01 Silicone Rubber Hoses Available For Engine Oil Cooler Water Lines
1986/05/01 Three Element Speed Switch Replaces Dual Element Speed Switch
1986/05/01 New Conversion Groups Available To Convert From Hydramechanical Governors To Woodward PSG Governors
1986/05/01 New Tool Available To Measure Propeller Pitch
1986/05/01 FT Tooling Prints Available For Bushing Installation In Governor Housing
1986/05/01 Fittings Added To Jacket Water Heater Hose To Prevent Interference With Folded Core Radiator
1986/05/01 List of Service Publications
1986/06/01 Determining The Cause Of Glow Plug Tip Failures
1986/06/01 Service Reminders For 3400 Family Of Diesel Engines
1986/06/01 New Service Tools Available
1986/06/01 Be Sure The Correct Sending Units Are Used With Oil Pressure And Water Temperature Gauges In Control Panels
1986/06/01 Optional Load Sharing Electric Governor Changed From 2301 to 2301A Woodward Governor
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