Fuel Injection Pump Driven Sprocket Removal

Special Tools

• EN-956-1  Extension
• EN-6347  Fuel Injection Pump Sprocket Holder
• EN-46790  Fuel Injection Pump Sprocket Remover

For equivalent regional tools, refer to Special Tools .

1. Install the EN-6347  holder (1) with the EN-956-1  extension (2) to the fuel injection pump driven sprocket.
   Fig 1: Holder And Extension

   Courtesy of GENERAL MOTORS COMPANY
2. Remove the fuel injection pump driven sprocket nut.
3. Remove the EN-6347  holder with the EN-956-1  extension to the fuel injection pump driven sprocket.
4. Install the EN-46790  remover (1).
   Fig 2: Installing Remover

   Courtesy of GENERAL MOTORS COMPANY
5. Remove the fuel injection pump driven sprocket with EN-46790  remover.