Timing Chain and Sprockets Removal

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 8433-1 Puller Bar
J 41558 Crankshaft Sprocket Remover
J 41816-2 Crankshaft End Protector

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.

Remove the camshaft sprocket bolts.
Remove the camshaft sprocket and timing chain.

Fig 1: Camshaft Sprocket, Bolt & Timing Chain

Courtesy of GENERAL MOTORS CORP.

Use the J 8433-1 , the J 41816-2 , and the J 41558 in order to remove the crankshaft sprocket.

Fig 2: Removing The Crankshaft Sprocket Using J 8433-1, J 41816-2 & J 41558

Courtesy of GENERAL MOTORS CORP.

Remove the crankshaft sprocket.

Fig 3: View Of Crankshaft Sprocket

Courtesy of GENERAL MOTORS CORP.

Fig 4: View Of Crankshaft Key & Keyway

Courtesy of GENERAL MOTORS CORP.

Remove the crankshaft sprocket key, if required.