New Clearance Specifications For Oil Pump Rotor Tip{1304,0374}
Usage:
All 3204 And 3208 Engines
The specifications for oil pump rotor tip clearances have been changed. The specifications shown in the Service Manuals were for the measurement of rotor tip clearance when an inspection fixture was used. These specifications did not make use of the tolerances of the timing gear cover and permitted less clearance. The new specifications, to be used while the components are installed in the timing gear cover, are as follows:
Clearance of oil pump rotor tip (New) ... 0.05 to 0.20 mm (.002 to .008")
Maximum permissible clearance for oil pump rotor tip ... 0.28 mm (.011")
Make a note of this change in the Service Manuals for these engines.
Oil pump rotor tip clearance.
Caterpillar Information System:
1981/11/09 Use FT1566 Valve Spring Compressor For Installation And Removal Of Valves{0622,1108}
1981/11/09 Part Number For Fuel Injection Pump Group In New Location{1253,1286}
1981/11/09 New Parts And Assembly Procedure Used On Main Shaft{3306}
1981/11/09 New Basic Turbocharger Group Prevents Possible Failures Of Compressor Wheel{1052}
1981/11/09 New 6V3010 Puller Group (Cross Bar Type) Is Easier To Use In Many Applications{0621}
1981/11/02 Correct Power Connection Prevents Damage To Diagnostic Service Tools {0651}
1981/11/02 Steel Retainer Clips For Sure Seal Connectors Used In Electrical Harnesses {0683,1408,7553}
1981/11/02 More Equipment Available For Reconditioning Track Rollers {4180,0621,0674}
1981/11/02 Caterpillar Service Tools Are Going Metric {0650}
1981/10/26 Fuel Shutoff Solenoid Seals Better {1259,1286}
1981/10/26 "Athena" Supports HBM's Field Servicemen {0374}
1981/10/26 Improved Head Gasket Has Larger Fire Ring To Decrease Fretting {1101,1201}
1981/11/16 Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear{1216,1201}
1981/11/16 New Shaft Assembly Used In Flexible Coupling Arrangement{3303}
1981/11/16 Improved Element Assemblies Used In Jacket Water Heaters{1383}
1981/11/16 New Inlet And Exhaust Valves, Valve Guides Have Tighter Fit To Prevent Corrosion, Guide Wear{1104,1105,1101,1103,1108,1109}
1981/11/16 Locating Special Instructions Quickly And Easily Using Microfiche{0374}
1981/11/23 New 6V4190 Auto Programmer Group And 6V4865 Auto Programmer Connector Used With 6V2100 Multitach{0651}
1981/11/23 Use Of Metric Fasteners{7553,0683,1000}
1981/11/23 New Regulator And Field Coil Assemblies Used{1410,1405}
1981/11/23 Plate Added To Hold Oil Lines In Adapter For Left Side Oil Filter{1306,1307}
1981/11/30 New Duo-Cone Seals Use Seal Rings Made Of Steel Instead Of Cast Iron{7555}
1981/11/30 New Tube And Cover Assembly Make Service Easier{3300,3306}
1981/11/30 New Spacer; New Shaft Assembly Permits Pressure Lubrication Of Sun Gear{3304,3307}