Timing Chain and Sprocket Removal (6.2L LS3)

Special Tools

• J 8433:  Two Jaw Puller
• J 41558:  Crankshaft Sprocket Remover
• J 41816-2:  Crankshaft End Protector

For equivalent regional tools, refer to Special Tools

Fig 1: View Of Camshaft Sprocket, Timing Chain & Sprocket Bolt
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 and discard the camshaft sprocket bolt (206).
2. Remove the camshaft sprocket (205) and timing chain (208).
Fig 2: View Of Timing Chain Tensioner & Bolts
Courtesy of GENERAL MOTORS CORP.
3. Remove the bolts (231) and timing chain tensioner (232).
Fig 3: View Of Crankshaft Sprocket Special Tools
Courtesy of GENERAL MOTORS CORP.
4. Use the J 41816-2:  end protector (1), the J 41558:  remover (2), bolts (3), and the J 8433:  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.