Cobalt L4-2.4L VIN B (2006)
16. Ensure that all dirt and debris is removed from the timing chain tensioner threaded hole in the cylinder head.
17. Install the timing chain tensioner.
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Tighten the tensioner to 75 Nm (66 ft. lbs.).
18. The timing chain tensioner is released by compressing the tensioner 2 mm (0.079 inch) which will release the locking mechanism in the ratchet.
To release the timing chain tensioner, use a suitable tool with a rubber tip on the end. Feed the tool down through the cam chest to rest on the
timing chain, then give a sharp jolt diagonally downwards to release the tensioner.
19. Install the upper timing chain guide and bolts.
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Tighten the bolts to 10 Nm (89 inch lbs.).
20. Install the camshaft cover.
