New Roller Camshaft Used{1209,1210}
Usage:
3306, 3306B Truck Engines
Description of Change: A new steel camshaft and new roller lifter are used in 3306B ATAAC Truck Engines.
Adaptable To: The new 7E7261 Camshaft, 2W7043 Roller Lifter and 7E9758 Clip are direct replacements for the 7C3863 and/or 7E9980 Camshaft and 7S3161 Valve Lifter, when used together. The new components are effective with 3306B Truck Engine 63Z20461.
Caterpillar Information System:
1990/11/19 Use Only Stainless Steel Cylinder Liner Shims To Salvage Damaged 4.75" Bore Cylinder Blocks{1201,1216,1217}
1990/11/19 Check Engine Speed Sensor And/Or Crank Angle Sensor (Magnetic Pickups) For Fouling{1912,1900,1907,7529}
1990/11/19 Correct Procedures For Starting, Stopping And Transporting A Product With A Turbocharged Engine{1052}
1990/11/19 New Caterpillar Battery Warranty Statement, SELF5124{1401,7780}
1990/11/19 Diagnostic Connector Used To Determine Starter Problems; Starter Monitor Unit Can Be Fabricated{0710,1408,1416,1426,1467,1553}
1990/11/12 New Alternator Drive Pulley Seal Used With New Drive Pulley; Poly-Vee Belt Can Be Installed {1425,1357}
1990/11/12 Adjustable Exhaust Bypass Group Used; Provides More Precise Ability To Set Exhaust Pressure {1057}
1990/11/12 New 7X1400 Digital Diagnostic Tool (DDT) Group Available {0782,0785,1900}
1990/11/05 New Crankshaft Seal Groups Used{1160,1161,1202}
1990/11/05 Service Manual SENR3479-04 Available For Troubleshooting Engine Test Procedures{1901,1900}
1990/11/05 Some Components Of The 7E3580 Engine Adapter Group For Allison AT545, MT543D, And MT653DRD Transmissions Are Not Serviced By Caterpillar{3279,1013,3009}
1990/11/05 New Stronger Exhaust Valve Push Rod Used In Valve Mechanism Groups{1208}
1990/11/19 New Camshaft Has Improved Wear Resistance{1210,1209}
1990/11/19 Field Replacement Of Spacer To Correct Possible Sticking In Woodward 3161 Governor Electric Shutoff Group{1264}
1990/11/19 New 4C6715 Silicone Compound Available For Components Where Centrifugal Force Is Present{4465,4466,4472,4473}
1990/11/19 Planetary Housing Requires Two Ball Plugs{3160}
1990/11/26 New Shim Improves Low Idle Stability Of Governor{1265,1256}
1990/11/26 Improved Fuel Injection Pump Groups Have New Injector Groups{1290}
1990/11/26 New Air Compressor Crankshaft Has Improved Spline Lubrication{1803}
1990/11/26 Service Tips For Piston Cooling Jets (Tubes){1331}
1990/11/26 Use Status Screen On Electronic Control Analyzer Programmer (ECAP) When Checking The Calibration Of The Timing And Rack Sensors; Correction To Systems Operation, Testing & Adjusting for 3406B (PEEC) Diesel Truck Engine, Form SENR3485-01{1905,1911
1990/11/26 New Oil Pressure Sender Assembly Improves Accuracy Of Oil Pressure Indicator{7455}
1990/11/26 New Expansion Tank Used{1354}
1990/12/10 New Caterpillar Warranty Statement For Ground Engaging Tools, SELF5138{6800}