1979/03/07 Caterpillar


New Exhaust Valve And Valve Guide

Usage:


D379, D398, D399 Industrial And Marine Engines;
D353 Marine Engines

Description of Change: A new exhaust valve and new valve guide are used in the above models. The new valve is stellite faced for hardness and high temperature operation. The core of the new valve is made of a material that is not as brittle as the former valve. The new valve does not have a chromium plated stem. For this reason, our recommendation is to use standard valve guides with the new valves.

Adaptable As: The new valve and guide, used together, are a direct replacement for the former parts.

Caterpillar Information System:

1979/03/07 Engine Mounted Exhaust Brake Systems Can Be Used To Extend Service Brake Life
1979/03/07 High Sulfur Fuel Can Cause Severe Engine Wear And Internal Damage
1979/03/07 New Larger Capacity Water Separator Is Available
1979/03/07 Stronger Suction Bell Assembly Now Used In Engine Oil Lines Group
1979/03/07 Federal Law Prohibits Tampering With Noise Control Systems
1979/03/07 New Design Fuel Injection Valve Body Used In Fuel Injection Lines Group
1979/01/24 List Of Service Publications
1979/01/24 Longer Bolts Are Now Used To Fasten The Engine Fan Assembly To The Adapter
1979/01/24 5P9705 Tapered Rod Tool Group Used For Removal And Installation Of Piston Pin Bearings In Tapered Connecting Rods
1979/01/24 New Tachometer Drive Adapter Has Increased Service Life
1979/01/24 Current Chart For Dynamometer Adapters
1979/01/24 Ether Starting Aid Groups Are Now Available
1979/03/07 New Manifold Assembly Gives More Room For The Lifting Eye
1979/03/07 Engine Valve Springs Are Now Made Of Carbon Steel Alloy
1979/03/07 New Fuel Injection Lines Groups Use A Different Fuel Injection Nozzle Assembly
1979/03/07 Check Valve Must Be Adjusted Correctly To Let Fuel Flow Through The Return Line And Back To The Tank
1979/03/07 Use SIRS To Keep Service Literature Current
1979/03/07 Window Cover Kit Now Available For ENM Service Meters
1979/03/07 Retroreflective Tape Makes Phototach Kit Easier To Read
1979/03/07 New Exhaust Pipe Connector Makes A Tighter Seal Between Pipe And Manifold
1979/03/14 New Oil Filter And Filter Base Assemblies
1979/03/14 New Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1979/03/14 New Fuel Injection Nozzles Are Used In 3208 Engines
1979/03/14 New Engine Cylinder Block Used
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