K 2500 Truck 4WD V8-454 7.4L VIN J SFI (1997)
9. Remove the camshaft sprocket and the camshaft timing chain.
10. Remove the crankshaft sprocket using a crankshaft sprocket remover.
11. Remove the key, if necessary.
INSTALLATION
1. Install the crankshaft key, if necessary.
NOTE: Ensure that the sprocket alignment mark faces away from the engine block. Ensure that the sprocket is fully seated against the crank
shoulder.
2. Install the crankshaft sprocket using the crankshaft sprocket installer.
NOTE: Ensure that the following conditions exist:
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The camshaft and the crankshaft timing marks are aligned
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The camshaft dowel pin and the camshaft sprocket hole are properly aligned
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The gears and the chain mesh
3. Install the camshaft timing chain to the camshaft sprocket.
4. Install the camshaft sprocket and the camshaft timing chain to the front of the camshaft.
CAUTION: Do not hammer the camshaft sprocket onto the camshaft. To do so may dislodge the rear camshaft plug and damage the camshaft.
