Timing Chain and Sprocket Removal (6.2L LS9)

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: View Of Camshaft Sprocket & 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 (1).
2. Remove the camshaft sprocket (2) and timing chain (3).
Fig 2: View Of Timing Chain Tensioner & Bolts
Courtesy of GENERAL MOTORS CORP.
3. Remove the bolts (1) and chain tensioner (2).
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:  remover bolts (3) and the J 8433-1:  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.