Timing Chain and Sprockets Cleaning and Inspection (L26)
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Aligning Timing Chain & Sprocket Timing Marks
Courtesy of GENERAL MOTORS CORP.
Inspect the timing chain and sprockets for damage.
Inspect the timing chain for overall in and out movement. Movement should not exceed 25 mm (1 in).