Timing Chain and Sprocket Removal L98, LS2

Tools Required

1. Inspect the sprockets for correct alignment. The mark on the camshaft sprocket (1) should be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be located in the 12 o'clock position.




Notice: 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.

2. Remove the camshaft sprocket bolt (1).
3. Remove the camshaft sprocket (2) and timing chain (3).



4. Remove the timing chain tension bolts (1) and tensioner (2).



5. Using the J 41816-2 (1), the J 41558 (2), bolts (3) and the J 8433-1 1 (4) in order to remove the crankshaft sprocket.



6. Remove the crankshaft sprocket (1).



7. Remove the crankshaft sprocket key (1), if required.

Timing Chain and Sprocket Removal LS3

Tools Required

Notice: 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).



3. Remove the bolts (231) and timing chain tensioner (232).



4. Use the J 41816-2  (1), the J 41558  (2), bolts (3), and the J 8433  (4) in order to remove the crankshaft sprocket.



5. Remove the crankshaft sprocket (207).



6. Remove the crankshaft sprocket key, as required.