1984/10/29 Caterpillar

New Cylinder Head Gasket Helps Prevent Oil Leakage Around Gear Pocket{1101}

Usage:

All D348 Engines

SUPPLEMENT: 07/06/87

SERVICE MAGAZINE, OCTOBER 29, 1984, PAGE 5. The article "New Cylinder Head Gasket Helps Prevent Oil Leakage Around Gear Pocket" gives information on a new cylinder head gasket for D348 Engines. Since the article was published, additional gaskets have become available for this and other 5.4" Bore Engines. Put a mark through the above article and make reference to the article "New Cylinder Head And Spacer Plate Gaskets Prevent Oil Leakage Around Gear Pocket" in this issue.

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Description of Change: A new cylinder head gasket is available for use in all D348 Engines. The new gasket has a rubber, multiple bead insert which helps prevent oil leakage in the area around the gear pocket.

Adaptable As: The new 4W7598 Cylinder Head Gasket is a direct replacement for the former 7N9527 Cylinder Head Gasket which has been canceled.

Caterpillar Information System:

1984/10/29 New Oil Filter Group Can Be Used To Extend Oil Change Interval{1306,1318,1326}

1984/10/29 Foil Shield Will Help Prevent Electrical Interference In Engine Set Point Indicator{0781,0785}

1984/10/29 Cetane Injection Group Uses New Orifice, Tee and Seals{1250,1274}

1984/10/22 Information For Testing 8N7004, 4W7011 And 4W7015 Fuel Injection Nozzles{1254}

1984/10/22 Changes To Water Lines Group Increase Coolant Flow Through Exhaust Manifold{1059}

1984/10/22 Improvements Made To Fuel Filter Housing{1260,1261,1262}

1984/10/22 New Heat Exchanger Group Has More Cooling Capacity{1379}

1984/10/15 New Indicator Lamps Used On Generator Control Panels{7002}

1984/10/15 New Water Temperature Regulator Has Higher Temperature Setting{1355}

1984/10/15 New Continuity Testing Light Available{0600,0785}

1984/10/15 New High Alloy Material Is Used In Cylinder Head Assemblies{1101}

1984/10/15 Seal Kits Available For Hydraulic Cylinders{5050}

1984/10/29 New Heat Shield For Wiring To Electrical Shutoff Group{7400,7403,7418}

1984/10/29 New Cylinder Heads, Fuel Nozzles And Fuel Nozzle Adapters Used{1101,1106}

1984/10/29 New Diaphragm Used In BrakeSaver Control Valve Group{1159,1155}

1984/10/29 New Outer Bearing Race Used In Auxiliary Fan Drive Group{1390}

1984/11/05 Remove Diode Assemblies From Shutoff Solenoids{1259}

1984/11/05 Preferred Engine Timing Procedures{1250,1286,1290,1292}

1984/11/05 Thread Identification Kit Available{0600,0760}

1984/11/19 Use Care When Installing Circuit Boards In Regulators{4467}

1984/11/19 Remanufactured Cylinder Head Groups{1100,1101,7554}

1984/11/19 Additional Information For Correct Fuel Injector Timing{1290}

1984/11/19 Fuel Setting And Related Information Microfiche Corrected, Improved{0374,0375}

1984/11/19 Remanufactured Piece Parts Now Available For Turbochargers (U.S. and Canada Only){1052,1053,1056,1065,1077}