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 New Screws Used In Air And Electric Horn Groups{7303}
1981/11/09 New Clutch Disc Used{3155}
1981/11/09 Part Number For Fuel Injection Pump Group In New Location{1253,1286}
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 New Exhaust Manifold Used {1059}
1981/11/02 New Front Service Brake Used; New Wheel Bearing Adjustment Procedure {4250,4205,4208}
1981/11/02 More Equipment Available For Reconditioning Track Rollers {4180,0621,0674}
1981/11/02 Caterpillar Service Tools Are Going Metric {0650}
1981/11/16 Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear{1216,1201}
1981/11/16 Improved Element Assemblies Used In Jacket Water Heaters{1383}
1981/11/16 Locating Special Instructions Quickly And Easily Using Microfiche{0374}
1981/11/16 New Clutch Disc Used{3155}
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 Lateral Stabilizer Bracket Available As A Replacement Part{7051,7203}
1981/11/23 Shorter Wiper Blade Prevents Contact With Windshield Seal{7305}
1981/11/30 New Duo-Cone Seals Use Seal Rings Made Of Steel Instead Of Cast Iron{7555}
1981/12/07 Increased Lubrication For Transmission Planetary Gears{3154,3176}
1981/12/07 New Core Assembly Used In Transmission Oil Cooler Group{1375}