Commander 2WD V8-4.7L (2008)
17. Remove all 3 locking pins from tensioners.
CAUTION: After pulling locking pins out of each tensioner, DO NOT manually extend the tensioner(s) ratchet. Doing so will over tension
the chains, resulting in noise and/or high timing chain loads.
18. Using Special Tool 6958, Spanner with Adaptor Pins 8346, tighten left and right camshaft sprocket bolts to 122 Nm (90 ft. lbs.).
19. Rotate engine two full revolutions. Verify timing marks are at the following locations:
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primary chain idler sprocket dot is at 12 o'clock.
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primary chain crankshaft sprocket dot is at 6 o'clock.
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secondary chain camshaft sprockets "V8" marks are at 12 o'clock.
20. Lubricate all three chains with engine oil.
21. After installing all chains, it is recommended that the idler gear end play be checked. The end play must be within 0.10-0.25 mm (0.004-0.010 in.).
If not within specification, the idler gear and idler shaft must be replaced.
