New Exhaust Valve And Valve Guide{1104,1105}
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:
1979/02/19 Modification Of 5P9726 Plug Gauge That Is Used To Check Brake Wear{0653}
1979/02/19 Use Correct Procedure To Clean The Engine Lubrication System If Permanent Type Antifreeze (Ethylene Glycol) Is In The Engine{1318,1350}
1979/02/19 Use SIRS To Keep Service Literature Current{0374}
1979/02/05 High Sulfur Fuel Can Cause Severe Engine Wear And Internal Damage{1280}
1979/02/05 Stronger Suction Bell Assembly Now Used In Engine Oil Lines Group{1318,1307}
1979/02/05 Federal Law Prohibits Tampering With Noise Control Systems{0116}
1979/01/29 Fuse And Wire Assembly Is Available For Protection Of Earlier 6N5906 Service Meters{7480}
1979/01/22 Ether Starting Aid Groups Are Now Available{1456}
1979/01/22 New Tachometer Drive Adapter Has Increased Service Life{7462,1288}
1979/01/22 Current Chart For Dynamometer Adapters{0651,1000}
1979/01/15 6V83 Emery Polishing Paper{0675}
1979/01/15 Removal And Installation Of Taper Type Bearings{0622,1214,1219}
1979/02/19 New Exhaust Pipe Connector Makes A Tighter Seal Between Pipe And Manifold{1061,1059}
1979/02/19 Engine Valve Springs Are Now Made Of Carbon Steel Alloy{1101,1108}
1979/03/05 Main Bearings Now Have Larger Diameter Oil Hole For Better Lubrication Of Main And Rod Bearings{1203,1219,1300}
1979/03/05 New Engine Cylinder Block Used{1201}
1979/03/05 New Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218,1219}
1979/03/05 New Fuel Injection Nozzles Are Used In 3208 Engines{1254}
1979/03/05 Improvements Made To Fuel Injection Pump And Governor Group{1253,1281,1286}
1979/03/05 New Oil Pan Assembly Uses An O-Ring And Plug For A Better Seal{1302}
1979/03/05 Engine Mounted Exhaust Brake Systems Can Be Used To Extend Service Brake Life{1050}
1979/03/12 New Larger Capacity Water Separator Is Available{1250}
1979/03/12 Retroreflective Tape Makes Phototach Kit Easier To Read{0651,0653}
1979/03/12 New Manifold Assembly Gives More Room For The Lifting Eye{1059}