1999/08/02 Caterpillar

New Flywheel Housing Gasket For 3408 And 3412 Machine Engines {1152}

Usage:

Caterpillar Machines Powered By 3408 and 3412 Engines

SUPPLEMENT: OCTOBER 25, 1999

Service Magazine SEPD0483, Article 16, Page 19, August 2, 1999; "New Flywheel Housing Gasket For 3408 And 3412 Machine Engines".

Disregard this article. See Service Magazine SEPD0494, Article 11, Page21 with the same title.

--------------- END SUPPLEMENT ---------------

Description of Change: A new multi-layer steel flywheel housing gasket will go into production on all 3408 and 3412 Machine Engines that are currently manufactured with a flywheel housing perforated steel core gasket. Machine engines that are currently being manufactured with an anaerobic seal will continue to be manufactured with the anaerobic flywheel housing seal. The new gasket will help prevent leaks between the flywheel housing and the cylinder block.

Adaptable To: On the 3408 Engines, the new 161-7294 Gasket-Cylinder Block (Multi-Layer) is a direct replacement for the 7N-9331 Gasket-Cylinder Block (Paper) and 109-4318 Gasket-Cylinder Block (Steel Core). On the 3412 Engines, the new 161-7293 Gasket-Cylinder Block (Multi-Layer) is a direct replacement for the 8N-1911Gasket-Cylinder Block (Paper) or 113-1474 Gasket-Cylinder Block (Steel Core).

Caterpillar Information System:

1999/08/02 914G & IT14G Speeder Models Are Now Standard Production Machines {3000,7000}

1999/08/02 New Oil Pump Group Used {1304}

1999/08/02 Engine Derate Parameter On Electronic Technician And Vital Information Management System May Give False Value {7620}

1999/08/02 Procedure For Converting Standard Controls To Finger Tip Controls {4343}

1999/08/02 Identifying The Engine In A Backhoe Loader {1000,1001}

1999/08/02 Cold Start Advance Solenoid Available {1272,1250}

1999/07/26 New Location For Ground Wire{1408,7423}

1999/07/26 An Improved Throttle Cable Is Available For Certain Soil And Asphalt Compactors{5462}

1999/07/26 Revised Repair Procedure For Large Off-Highway Truck Bladder Type Accumulators{0374,4331}

1999/07/26 New Bracket Assembly And Clamps In Water Lines Groups Provide Improved Tube Retention{1380}

1999/07/26 Improvements Have Been Implemented On The Superstructure Of Large Off-Highway Trucks{7050}

1999/07/26 Filtered Adapter Reduces False Air Filter Warnings{7400,7452}

1999/08/02 New Material Improved Durability for STAY CLEAN VALVE(r) in Caterpillar High Efficiency Fuel Filters {1262}

1999/08/09 Reporting Incidents Through The Cat Neutral Net {0374}

1999/08/09 Extra Support For Center & Rear Brake Lines {4257}

1999/08/09 New Pressure Switches With Improved Reliability {1435}

1999/08/09 New Hydraulic Oil Change Procedure Used {3080,0374,0375,5056}

1999/08/09 New Motor Groups for 914G & IT14G SPDR Machines Provide Increased Serviceability {5058}

1999/08/09 A Special Instruction For Installing Cab Visors Is Available {7301,7310,0374}

1999/08/09 New Design Improves Durability Of Quick Disconnect Nipple {5050,0618}

1999/08/09 Correction To Special Instruction, REHS0494 {7620}

1999/08/17 Use 160-3935 Centering Guide For Aligning Rear Axle Housings {4131}

1999/08/17 Correction To Parking Brake Assembly & Disassembly, SENR1217 {4267}

1999/08/17 Use FT2621 Deep Socket For Track Adjustment {4198,4198}