Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}
Usage:
3406, 3408 and 3412 Engines in All Applications
Description of Change: Different main and connecting rod bearings are now used in the above models. The aluminum alloy in the new bearing is of a higher strength. Also, the bond (method to fasten) between the aluminum alloy and steel is stronger.
Adaptable As: Direct replacement.
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These bearings can NOT be used on early 3406 Engines that have a 4N928 Crankshaft.
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Caterpillar Information System:
1977/01/17 Removal Of Bolts With Metal Locks Easier With New Sockets{0610}
1986/12/22 New Torque Control Group Used In Governor And Fuel Injection Pump Group{1264}
1986/12/22 New Oil Level Gauges (Dipsticks) With "Full Range" Used{1326}
1986/12/22 Fuel Dilution Troubleshooting Procedure{1250}
1986/12/22 Use Heli-Coils To Repair 5.4" Bore Engine Rocker Arm Assemblies{1123,1105}
1986/12/22 Engine Power Increased{1250}
1986/12/22 Two New Shop Towels And Towel Bracket Available In North America{0600}
1986/12/15 New Cover Used On BrakeSaver Control Valve{1159}
1986/12/15 Silicone Water Seal Available{1101}
1986/12/15 Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15 Check For Dirt Before Replacing Pyrometer Switch{1050,7466}
1986/12/15 New Track Press Assembly Specifications Decals Available{4150}
1977/01/17 Blades For Hose Saw Cut Off Group Must Now Be Sent To New Address To Be "Resharpened"{0664}
1977/01/17 New Special Instruction For Troubleshooting 5P2150 Engine Horsepower Meter{0651,1250}
1977/01/17 SIRS Component Code List{0331}
1977/01/17 New Tie Bars Improve Stability Of The Fuel Injection Test Bench{0652}
1977/01/17 New Flywheel Assemblies Are Available For Use With Spicer Transmissions{1156}
1977/01/17 New Water Temperature Regulator Has A Closer Fit At The Valve Seat To Keep Leakage At A Minimum{1355}
1977/01/24 Drain All Coolant From Engines Before Shipment For Remanufacturing{0355,1350}
1977/01/24 Exhaust Manifold Coupling With A Slip Fit Now Used Instead Of A Coupling With Piston Rings{1061}
1977/01/24 Exhaust Valve Guides With A Counterbore Are Now Available{1104}
1977/01/24 Adapter For Disassembly And Assembly Of Turbocharger Cartridge{0620,1053}
1977/01/24 Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers{1210}
1977/01/24 Coupling With A Slip Fit Now Used At Turbocharger Exhaust Outlet Instead Of Coupling With Piston Rings{1061}