gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Primary Camshaft Drive Chain and Sprockets Replacement|Page 4726 > < Primary Camshaft Drive Chain and Sprockets Replacement
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10. Remove the crankshaft sprocket from the nose of the crankshaft.

Installation Procedure

1. Ensure the secondary timing chain is in the stage 1 timing position. See: Timing Component Alignment Marks/Locations

2. Ensure the crankshaft sprocket is installed with the timing mark (1) visible.

Primary Camshaft Drive Chain and Sprockets Replacement|Page 4726 > < Primary Camshaft Drive Chain and Sprockets Replacement