1979/03/19 Caterpillar

Revision To Guideline For Reusable Parts Is Available{1105,1108,0374}

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 Resuable Parts, Form SEBF8034, which is also available.

Caterpillar Information System:

1979/03/19 Ether Starting Aid System Improves Cold Weather Starts{1456}

1979/03/19 New Oil Filter And Filter Base Assemblies{1306,1378,1318}

1979/03/19 Maintenance Procedures For Extended FPTO Life On 3408 And 3412 Marine Engines{3055}

1979/03/12 New Fuel Injection Lines Groups Use A Different Fuel Injection Nozzle Assembly{1254}

1979/03/12 Magneto Improvements{1413}

1979/03/12 Larger Diameter Washer Is Used To Hold Air Transfer Pipe In Aftercooler Flange{1063,1058}

1979/03/12 Check Valve Must Be Adjusted Correctly To Let Fuel Flow Through The Return Line And Back To The Tank{1275,1253,1274}

1979/03/12 New Design Fuel Injection Valve Body Used In Fuel Injection Lines Group{1252,1254}

1979/03/12 SAE 15W/40 Multiviscosity Oil Can Be Used In Engines, Transmissions And Final Drives{1318,3067,3179,4070}

1979/03/12 New Manifold Assembly Gives More Room For The Lifting Eye{1059}

1979/03/12 Retroreflective Tape Makes Phototach Kit Easier To Read{0651,0653}

1979/03/12 New Larger Capacity Water Separator Is Available{1250}

1979/03/19 8L4525 Flange Is Available Again For Parts Service Of 3192 Marine Transmissions{3314}

1979/03/19 New Woodward Governor Control Used On Diesel Engines; Former Control Now Used On Gas Engines Only{1265}

1979/03/26 Service Parts Available For the 5P8585 Leak Detector{0651}

1979/03/26 Window Cover Kit Now Available For ENM Service Meters{7478}

1979/03/26 Information About The Use Of Earlier Cylinder Heads And Liners With Spacer Plate Cylinder Blocks; List Of Earlier Articles{0600,1101,1162,1201,1216,1221}

1979/03/26 Drawing Available For FT1439 Lifting Beam{0644}

1979/03/26 New Fabricated Tools Available For Service Work On 7211 And 7221 Marine Transmissions{0621,0622,3302,3305}

1979/03/26 New Oil Jet Tube In Cylinder Block Gives More Clearance For Pistons And Connecting Rods{1201}

1979/03/26 Replacement Bushing Available For Cast Iron Rocker Arms Only{1102}

1979/03/26 6V852 Dust Cap Is Available For Protection Of 5P9711 And 5P9714 Nipple Assemblies{0651}

1979/03/26 Four Crankshaft Rear Seals Are Available For Use On 3304 And 3306 Engines{1161}

1979/03/26 A Reverse Connection Of Oil Filter Hoses Can Cause Bearing Failures{1230,1307,1306}