Timing Chain and Sprocket Removal (LS3 with Z52 Option, LS7)

Special Tools

• J 8433-1:  Puller Bar
• J 41558:  Crankshaft Sprocket Remover
• J-41558-10:  Crankshaft Sprocket Remover Bolts
• J 41816-2:  Crankshaft End Protector

For equivalent regional tools, refer to Special Tools

Fig 1: Crankshaft Gear & Timing Chain
Courtesy of GENERAL MOTORS CORP.
CAUTION: 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 (206).
2. Remove the camshaft sprocket (205) and timing chain (208).
Fig 2: Timing Chain Dampener & Bolts
Courtesy of GENERAL MOTORS CORP.
3. Remove the bolts (231) and chain dampener (232).
Fig 3: View Of Protector, Remover, And Crankshaft Sprocket Puller
Courtesy of GENERAL MOTORS CORP.
4. Use the J 41816-2:  protector (1), the J 41558:  remover (2), the J-41558-10:  bolts (3) and the J 41816-2:  puller (4) in order to remove the crankshaft sprocket.
Fig 4: View Of Crankshaft Sprocket
Courtesy of GENERAL MOTORS CORP.
5. Remove the crankshaft sprocket (207).
Fig 5: View Of Crankshaft Key & Keyway
Courtesy of GENERAL MOTORS CORP.
6. Remove the crankshaft sprocket key, as required.