CTS V6-3.2L VIN N (2003)
Important: The reference marks on both sets of the camshaft gears must match exactly with the marks on the J 42069-20 checking gauge.
21. Use the J 42069-20 to inspect the alignment of the camshaft gears 3 and 4.
22. Use the J 42069-20 to inspect the alignment of the camshaft gears 1 and 2.
23. If timing belt adjustment IS REQUIRED, refer to Timing Belt Timing Adjustment, See: Service and Repair/Overhaul/Repair Instructions/92.
Timing Belt Timing Adjustment
24. If timing belt adjustment IS NOT REQUIRED, set the final timing belt tension:
24.1 Loosen the timing belt eccentric locking nut.
24.2 Turn the eccentric counter clockwise to full stop, then back to the following specification:
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NEW BELT
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until the reference mark is 3-4 mm (0.118-0.157 in) (a) above the datum line.
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USED BELT
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until the reference mark is aligned with the datum line.
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Tighten the timing belt tensioner eccentric locking nut to 20 Nm (15 lb ft).
