Mazda CX-9 Grand Touring 2009 Manual page 1422

10. Remove the front wheel and tire (RH). (See GENERAL PROCEDURES (SUSPENSION) .)
11. Remove the splash shield (RH).
12. Measure the valve clearance.
1. Rotate the crankshaft clockwise and verify that the timing mark of the intake side camshaft
sprocket is in the position shown in the figure. In this position, the No.1 cylinder is at the TDC of
the compression stroke.
2. Measure the valve clearance of location A shown in the figure.
If it is not within the specification, replace the tappet and adjust the valve clearance to the
median value of the standard.
Fig. 13: Identifying Valve Clearance Gap
Courtesy of MAZDA MOTORS CORP.
Standard valve clearance [Engine cold]
IN: 0.150-0.250 mm {0.00591-0.00984 in}
EX: 0.300-0.400 mm {0.0119-0.0157 in}
NOTE:
2008 Mazda CX-9 Grand Touring
2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9
Make sure to note down the measured values for choosing the
suitable replacement tappets.