Mazda CX-9 Grand Touring 2009 Manual page 1467

9. Loosen the LH bank camshaft cap bolts in several passes in the order shown in the figure and remove the
camshaft cap.
10. Remove the camshaft, camshaft sprocket, camshaft timing chain, and camshaft timing chain tensioner of
the LH bank as a single unit.
11. Slowly compress the camshaft timing chain tensioner (RH) piston by hand.
Fig. 85: Identifying Camshaft Cap Bolts Loosen Sequence
Courtesy of MAZDA MOTORS CORP.
12. Insert an approx. 1.0 mm {0.039 in} thin wire or paper clip into the camshaft timing chain tensioner
(RH) shown in the figure to hold the tensioner piston.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9
Fig. 84: Identifying Camshafts Timing Mark
Courtesy of MAZDA MOTORS CORP.