G6 V6-3.9L VIN 1 (2006)
Timing Component Alignment Marks: Locations
Align the crankshaft timing mark (1) to the timing mark on the bottom of the timing chain tensioner (2).
Hold the camshaft sprocket with the timing chain hanging down and install the timing chain to the crankshaft gear.
Align the timing mark on the camshaft gear (4) with the timing mark on top of the timing chain tensioner (3).