1981/08/31 Caterpillar

Thrust Washer Used In Pump Housing For Sleeve Metering Fuel System{1253,1286}

Usage:

3208 Engines In All Applications

Description of Change: A thrust washer has been added to the fuel pump housing for sleeve metering fuel systems on all 3208 Engines. The steel-backed, bronze thrust washer gives a new thrust face for the fuel pump camshaft to prevent housing wear. It also permits easier reconditioning of the fuel system.

Formerly, the fuel pump housing had no thrust washer, and it was possible for the camshaft to wear into the housing.

Adaptable To: The 9N5822 Thrust Washer is in effect with engine Serial Numbers 32Y76804, 90N52162, 75V7591, 79V8773, 99R248, 1Z1327, 2Z1903 and 3Z1252. The 9N5822 Thrust Washer is adaptable to all earlier engine serial numbers and 40S1-Up if a counterbore and clearance face are machined into the pump housing. Special Instruction, Form No. SMHS7897 has instructions for use of the 6V4068 Tool Group to machine the pump housing and for installation of the washer.

Caterpillar Information System:

1981/08/31 6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}

1981/08/31 FT1632 Bolt Used During Removal Of Sleeve From Sleeve Metering Fuel System{0621,1251,1253}

1981/08/24 Use Of Different Anti-Seize Compound Prevents Problems With S.O.S. Tests{0680,1203,1218,1219,1225,1226,1227,1230}

1981/08/24 Troubleshooting The Fuel Ratio Control Group For Low Power Complaints{1278}

1981/08/24 New Idler Pulley Groups Improve Service Life Of Vee-Belt{1358}

1981/08/17 Comparison And Applications Of Six And Eight Counterweight Crankshafts{1202,1156}

1981/08/17 O-Ring Seal Materials And Applications: Use Only The Correct Seal For The Specific Installation{7555}

1981/08/17 Plastic Plugs Now Used To Hold Piston Pins In Bendix Air Compressors{1065}

1981/08/17 Improvements To Optional Modification Of 5P4150 Nozzle Tester{0651,1254}

1981/08/17 New Spanner Wrenches Needed To Install Bearings On Marine Transmission Shafts{0622,3300}

1981/08/17 Standard Interval For Oil Changes Now 20,125 Kilometers (12,500 Miles) Or 250 Service Hours{1318}

1981/08/10 New Spacers Used With Larger Valve Springs{1108,1101}

1981/09/07 Use Correct Parts In Oil Pressure Relief Valve{1315,1304}

1981/09/07 Plates Can Be Fabricated For Removal Of Spherical Bearings From Hydraulic Cylinders{0651,0623}

1981/09/07 Use Hardware Rack To Keep Small Parts Together During Engine Disassembly And Assembly{0633}

1981/09/07 New Exhaust Gas Recirculation Solenoid Used{1080}

1981/09/07 One-Piece Panel Used For Oil Pan Sound Suppression{7260,1801,1302}

1981/09/07 New Support Prevents Vibration Of Left Side Oil Filters{1306,1318}

1981/09/14 New High Pressure Quick Disconnect Couplers And Nipples For Hydraulic Test Equipment {0651}

1981/09/14 Updated, Improved Issue of Special Instruction, "Bench Testing Hydraulic Components," Now Available {0374,5050}

1981/09/14 Changes To BrakeSaver Groups Give Longer Service Life {1155}

1981/09/14 Troubleshooting: Water Pump Failures {1361,1350}

1981/09/14 Exhaust Manifold And Air Lines Changes Prevent Broken Studs And Exhaust Leaks {1059,1061}

1981/09/14 Timing Pin Removed From Governor And Fuel Injection Pump Group; Change To Service Manuals {1286}