New Relief Valve Guide Used In Oil Pump{1315}
Usage:
All 3208 Engines
Description of Change: A new relief valve guide is used in the oil pump group on 3208 Engines. The new relief valve guide is the same hardness as the plunger and has a different hole pattern than the former relief valve guide.
The former relief valve guide has in some applications, worn a step in the guide. This step can limit the movement of the relief valve plunger and possibly cause high oil pressure.
Adaptable As: The new 7W239 Relief Valve Guide is a direct replacement for the former 2W4110 or 1W1789 Relief Valve Guides. The new valve guide is in effect as shown in the chart.
Caterpillar Information System:
1984/07/09 Modifications Can Be Made To Improve Distribution Of Exhaust Through The Truck Dump Body Ribs{7258,1059,1061,1062}
1984/07/09 New Disassembly And Assembly Tools Available For Fuel Ratio Controls{0600,1278}
1984/07/02 Testing For Leaks In Oil Coolers With Removable Cores{1365,1366}
1984/07/02 Surface Grinding Of Compacted Graphite Iron Cylinder Heads{1101}
1984/07/02 New Seals Help Prevent Leakage In Axial Piston (Slipper) Pumps And Motors{3201,3203,4351,5058,5070}
1984/07/02 Procedure Changed To Test Engines Out Of Chassis{1202,1205}
1984/07/02 New Crankshaft, Cylinder Block And Camshaft Used{1202,1201,1210}
1984/07/02 Modification To FT1488 Exciter Tester Group Allows Testing Of All Small Frame SR4 Generators{0785,4450,4467}
1984/07/02 Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1984/06/25 New Rear Crankshaft Seal Group Used {1161}
1984/06/25 Improved Discs Used In No. 5 Rotating Clutch Of Transmission {3155,3150}
1984/06/25 New Cylinder Head Has Larger Mounting Holes For The Lifting Brackets {1100,1101}
1984/07/16 Alternator Available For General Use{1405}
1984/07/16 Use Caution When Handling Components That Contain Asbestos{0353}
1984/07/16 Toric Ring Seals Available For Duo-Cone Seals In Service And Parking Brake Group{4208,4250}
1984/07/16 New Mechanical Service Meter Used{7478}
1984/07/16 FT1886 Valve Spring Compressor Group Available{0600,1108}
1984/07/16 Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0768,1361}
1984/07/16 Temporary Control Support Group For Machine Maintenance Is Available As A Service Tool{7253}
1984/07/16 New Plate Assembly Used In Bottom Guard Group{7153}
1984/07/16 Installation Instructions For Turbocharger Bearing Kit{1052,1053}
1984/07/16 Lubricate Door Latches To Help Prevent Wear{7300,7308}
1984/08/13 New Pipe Nipple Used In Fire Suppression Cylinder And Valve Group{7401}
1984/08/13 New Service Tools Available{0600}