Two Front Timing Gear Housings Available{1162,1150}
Usage:
3500 Family Of Engines
Two front timing gear housings are used on the 3500 Family Of Engines. Effective with the serial numbers listed in the chart, engines with no auxiliary or accessory drive on the left side will use the 7W1529 Housing. This housing has no left side drive locations. Engines that have a left side auxiliary or accessory drive (L.H. governor drive, L.H. auxiliary water pump, L.H. pulley drive, etc.) will use the 7W3376 Housing. The 7W3376 Housing has all of the left and right side mounting positions. For earlier engines other than those listed in the chart, only the 7W3376 Housing was used.
Caterpillar Information System:
1987/02/23 Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing{1151,1201}
1987/02/16 Grommets Added To Dampen Vibration{1307}
1987/02/16 Fuel Ratio Control Diaphragms On 3161 Governors{1278}
1987/02/16 Some 2P4005 Oil Filter Assemblies May Be Difficult To Install{1318}
1987/02/16 Change To Interval For Valve Lash Adjustment{1103,1105,1123}
1987/02/16 Check Bolt Tightness Before Replacing Gaskets To Stop Coolant Leakage{1393,1362}
1987/02/16 Incorrect Use Of Fuel Heaters Can Reduce Engine Power{1296}
1987/02/16 Guidebook For Caterpillar Inspection And Maintenance Program For Standby Generator Sets{0354,0370,0372}
1987/02/16 Polarity Connections And Use Of Service Meter Films When Service Meter Kits Are Installed{7480,7000}
1987/02/16 Self-Powered Hour Meters Available{7480,7450}
1987/02/16 12-Volt Starter Solenoid Available For 7T2265 And 7T2266 Starting Motors{1407}
1987/02/16 Resistors Used To Protect Electrical Wiring{1400}
1987/02/23 Water Temperature Regulators Standardized{1355}
1987/03/02 Bolt-On Roller Groups Available For Competitive Hydraulic Excavators{4150}
1987/03/02 Tools Available To Install Plastic Tie Straps{0709,0738}
1987/03/02 Check For Plugged Orifices In Mechanical Pressure Gauges{7450}
1987/03/02 Water Separator Available{1263}
1987/03/02 New 8T5261 Bushing Installer And Remover Adapter Tool Available{0600}
1987/03/02 New Fan Drives Used{1358}
1987/03/09 Cylinder Head Water Directors No Longer Needed In Direct Injection Engines {1115}
1987/03/09 New Air Cleaner Mounting Brackets Used For Heavy-Duty Air Cleaner Groups {1051}
1987/03/09 Improved Injector Clamp Eliminates Interference With Bridge {1290}
1987/03/16 Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16 Improved High Idle Display Of The 6V3100 And 8T5300/8T5301 Engine Timing Indicator Groups{0781}