1979/03/14 Caterpillar


Revision To Guideline For Reusable Parts Is Available

Usage:




A revision to the Guideline for Reusable Parts, Valves and Valve Springs, is available. The new form number is SEBF8002-01. There have been several additions and changes made in the new guideline. They are:

1. A 40% increase in the number of photographs of worn valves and springs.
2. Recommendations for additional methods to clean valves and valve stems.
3. Many small marks or scratches on the valve stem and valve head are now permitted.
4. Discoloration (change in color from normal) on valve stems is permitted if valves are cleaned and there is no discoloration in the retainer groove area before cleaning.
5. Light rust on valve stems and fillets is permitted if it can be removed by cleaning and there are no pits under the rust.
6. A recommendation that the 6V87 Valve Stem Gauge be used to measure valve stem diameters. This is a "Use Again, Do Not Use Again" gauge.
7. More "cupping" of valve heads is permitted. The earlier specification was too limited.

In addition, the specifications for valves and valve springs are now in a separate Guideline For Reusable Parts, Form SEBF8034, which is also available.

Caterpillar Information System:

1979/03/14 List Of Service Publications
1979/03/14 Larger Diameter Washer Is Used To Hold Air Transfer Pipe In Aftercooler Flange
1979/03/14 Maintenance Procedures For Extended FPTO Life On 3408 And 3412 Marine Engines
1979/03/14 Main Bearings Now Have Larger Diameter Oil Hole For Better Lubrication Of Main And Rod Bearings
1979/03/14 8L4525 Flange Is Available Again For Parts Service Of 3192 Marine Transmissions
1979/03/14 Improvements Made To Fuel Injection Pump And Governor Group
1979/03/14 New Engine Cylinder Block Used
1979/03/14 New Fuel Injection Nozzles Are Used In 3208 Engines
1979/03/14 New Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1979/03/14 New Oil Filter And Filter Base Assemblies
1979/03/07 New Exhaust Pipe Connector Makes A Tighter Seal Between Pipe And Manifold
1979/03/07 Retroreflective Tape Makes Phototach Kit Easier To Read
1979/03/14 Information About The Use Of Earlier Cylinder Heads And Liners With Spacer Plate Cylinder Blocks; List Of Earlier Articles
1979/03/14 Replacement Bushing Available For Cast Iron Rocker Arms Only
1979/04/04 New Fabricated Tools Available For Service Work On 7211 And 7221 Marine Transmissions
1979/04/04 New Oil Jet Tube In Cylinder Block Gives More Clearance For Pistons And Connecting Rods
1979/04/04 Four Crankshaft Rear Seals Are Available For Use On 3304 And 3306 Engines
1979/04/04 List Of Service Publications
1979/04/04 New Woodward Governor Control Used On Diesel Engines; Former Control Now Used On Gas Engines Only
1979/04/04 Improved Fuel Priming Pumps Give Longer Service Life
1979/04/04 Fabricated Air-To-Water Aftercooler Available For Dynamometer Testing Of Engines Equipped With Air-To-Air Aftercoolers
1979/04/04 A Reverse Connection Of Oil Filter Hoses Can Cause Bearing Failures
1979/04/04 New Pistons And Timing Advance Unit Give Better Emissions Control And Easier Starts
1979/04/25 6V112 Repair Kit Available For Parts Service Of The 8H8558 Nut Spinner
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