Timing Chain and Sprockets Removal

Tools Required

• J 8433-1  Puller Bar. See Special Tools .
• J 41558  Crankshaft Sprocket Remover. See Special Tools .
• J 41816-2  Crankshaft End Protector. See Special Tools .

NOTE: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.
1. Remove the camshaft sprocket bolts.
2. Remove the camshaft sprocket and timing chain.
   Fig 1: Camshaft Sprocket, Bolt & Timing Chain

   Courtesy of GENERAL MOTORS CORP.
3. Use the J 8433-1  , the J 41816-2  , and the J 41558  in order to remove the crankshaft sprocket. See Special Tools .
   Fig 2: Removing The Crankshaft Sprocket Using J 8433-1, J 41816-2 & J 41558

   Courtesy of GENERAL MOTORS CORP.
4. Remove the crankshaft sprocket.
   Fig 3: View Of Crankshaft Sprocket

   Courtesy of GENERAL MOTORS CORP.
5. Remove the crankshaft sprocket key, if required.
   Fig 4: View Of Crankshaft Key & Keyway

   Courtesy of GENERAL MOTORS CORP.