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

Fig 1: Camshaft Sprocket, Bolt & Timing Chain
Courtesy of GENERAL MOTORS CORP.
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 2: Removing Crankshaft Sprocket Using J 8433-1, J 41816-2 & J 41558
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 3: View Of Crankshaft Sprocket
Courtesy of GENERAL MOTORS CORP.
4. Remove the crankshaft sprocket.
Fig 4: View Of Crankshaft Key & Keyway
Courtesy of GENERAL MOTORS CORP.
5. Remove the crankshaft sprocket key, if required.