1981/12/14 Caterpillar


New Flywheel Housing Gasket Used{1201,1157}

Usage:


D8K Tractors And 583K Pipelayers

Description of Change: A new flywheel housing gasket is now used in the flywheel housing group on D8K Tractors and 583K Pipelayers. The new gasket is of a different design that makes a seal completely around the camshaft bore.

The former gasket did not seal all the way around the camshaft. With the former gasket there have been some problems with oil leaks between the cylinder block and the flywheel housing in the area of the camshaft bore.

The cylinder block has also been changed to add more material in this area to give a surface to seal against. The part number of the cylinder block did not change. The new flywheel housing gasket and the new cylinder block, when used together, will provide a better seal for the area around the camshaft.

Adaptable As: The new 5N8691 Flywheel Housing Gasket is a direct replacement for the former 8N9575 Flywheel Housing Gasket.

Caterpillar Information System:

1981/12/14 6V4111 Adapters Available To Pull Spoke-Type Sprockets{4164,0623}
1981/12/14 Make Sure Coolant Conditioner Elements Are Changed At Correct Intervals{1350}
1981/12/14 New Valve Seat Used In Shift Pressure Valve Group{3152,3167}
1981/12/07 New Inlet Lines Used In Radiator Group{1353,1380}
1981/12/07 New Air Cleaner Group Has Six Clamps For Improved Seal{1051}
1981/12/07 6V4175 Socket Available For Worn Track Bolts{0612,4179}
1981/12/07 New Core Assembly Used In Transmission Oil Cooler Group{1375}
1981/12/07 Increased Lubrication For Transmission Planetary Gears{3154,3176}
1981/11/30 New Duo-Cone Seals Use Seal Rings Made Of Steel Instead Of Cast Iron{7555}
1981/11/23 Shorter Wiper Blade Prevents Contact With Windshield Seal{7305}
1981/11/23 Lateral Stabilizer Bracket Available As A Replacement Part{7051,7203}
1981/11/23 New Regulator And Field Coil Assemblies Used{1410,1405}
1981/12/14 New Oil Level Gauge Used To Prevent Vibration{1300,1318,7450}
1981/12/14 How To Remove The 7L4511 Sleeve Assembly From Aftercoolers{0620,1063}
1981/12/14 New Springs For Timing Advance Used In Governor And Fuel Pump Drive Group{1272,1288}
1981/12/14 New Cylinder Liners And O-Ring Seals Give Longer Seal Life{1216,1201,1213,1227}
1981/12/21 Shorter Bolt Gives Clearance For Wiper Motor Linkage{7305,7300}
1981/12/21 Use Of A Flex-Hone For Cylinder Liner Reconditioning{0664,0674,1216}
1982/01/11 Check 14 Test Points In Less Than 5 Minutes With The 6V2150 Starting/Charging Analyzer Group{0651,1518,1406}
1982/01/11 Improved Head Gasket Has Larger Fire Ring To Decrease Fretting{1101,1201}
1982/01/11 Procedure Reduces Possibility Of Spraying Hot Hydraulic Oil When S.O.S. Sample Is Taken{0372,5068}
1982/01/11 "Sirs User Instructions" Available{0374}
1982/01/11 Use FT1555 Generator Rotor Removal Tool To Remove And Install Rotor Assembly{0626,0644,0665,4457}
1982/01/18 New Lever And Improved Link Used To Permit Full Movement Of Articulation Indicator{7476}
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