Seals In Variable Timing Advance Available For Parts Service{1272}
Usage:
3306, 3306B Truck And Industrial Engines
The variable timing advance (9N5760 Weight Assembly) on the above engines uses two face-type seals. Replacements for both of these seals are now available. See illustration for the location of these seals.
Cross section of the 9N5760 Weight Assembly showing the location of the two seals now available.
Reassemble the timing advance and seals according to the Service Manuals, SEBR0504-01 for 3306 Truck Engines or SEBR0545-01 for 3306B Truck Engines. This is particularly important if the advance unit has the dowels. See Page 6-109 in SEBR0645-01. (This unit is not covered in the industrial engine Service Manuals.
Caterpillar Information System:
1988/07/04 Vehicle Speed Calibration Can Be Corrected Without Knowing Number Of Transmission Chopper Teeth {1250,3233}
1988/07/04 Fans Now Have Five Blades Instead Of Four {1356}
1988/07/04 Neutral Lead (Wire No. 26) Eliminated On VR3 And VR4 Voltage Regulators {4453,4474}
1988/07/04 New 1U8758 Pliers Available For Removing And Installing Large Internal Retaining Rings In Power Shift Transmissions {0603,3150}
1988/07/04 New Service Tools Available {0600}
1988/07/04 Improvement To 2P5535 Stud Extractor Group {0700,4210}
1988/06/27 Charts And Decals Available For Lubrication And Maintenance Intervals{0370}
1988/06/20 Two 11 mm Injectors Available For Parts Service{1250,1290}
1988/06/20 Large Engine Blowby Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1988/06/20 Software Upgrade For The 8T5282 Digital Diagnostic Tool (DDT){0600,1250}
1988/06/20 Maintenance-Free Batteries Require Different Troubleshooting Procedures{1401}
1988/06/13 Rotor Shaft Keyways Are Now "{4454}
1988/07/18 Identification Film For EMS Panels Is Written In Four Languages {7490}
1988/07/25 Replacement Fuel Injector Nozzles With New Nose Cones Available{0706,1254,1290}
1988/07/25 High Pressure Sealed Cap Available For Nipples Used For Diagnostic Testing And S·O·S Oil Sampling{0781,0783,0784,7770}
1988/08/01 Silicone Water Seals Reinstated In Cylinder Heads{1115,1300}
1988/08/01 Ground Wire Added To SR 4 Generators With 580, 680, And 800 Frames{4478}
1988/08/08 Turbine Oil Seal Improved On Turbochargers{1053,1077}
1988/08/08 Stronger Oil Pan Available For Severe Applications{1201,1302,1307}
1988/08/08 New Recommendations For Bearing Lubrication And Adjustment{3055}
1988/08/08 New Frequency Meter Has Replaceable Voltage Droop Resistor{7471}
1988/08/15 New Service Tools Available{0600}
1988/08/15 Wider Main Bearing Cap And Higher Torque On Cap Bolts{1201}
1988/08/22 New Fuel Tank Repair Kit Available For Repairing Plastic Or Nylon Fuel Tanks{0649,1273}