Mazda CX-9 Grand Touring 2009 Manual page 1424

EX: 0.300-0.400 mm {0.0119-0.0157 in}
NOTE:
13. Install in the reverse order of removal.
VALVE CLEARANCE ADJUSTMENT
1. Follow the cylinder head gasket replacement procedure and remove the camshafts and camshaft sprocket
as a single unit. (See CYLINDER HEAD GASKET REPLACEMENT [MZI-3.7].)
2. Remove the tappet.
3. Install an appropriate tappet based on the results of the valve clearance inspection.
Selected tappet = Removed tappet thickness + Measured valve clearance - Standard valve clearance
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}
4. Install in the reverse order of removal.
VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [MZI-3.7]
WARNING:
CAUTION:
NOTE:
The following procedure "VARIABLE VALVE TIMING ACTUATOR
REMOVAL/INSTALLATION" is performed after the engine and transaxle
component is removed from the vehicle. (See ENGINE
REMOVAL/INSTALLATION [MZI-3.7].)
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.
Fuel vapor is hazardous. It can very easily ignite, causing serious
injury and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite and cause
serious injures or death and damage. Fuel can also irritate skin and
eyes. To prevent this, always complete the "Fuel Line Safety
Procedure". (See BEFORE SERVICE PRECAUTION [MZI-3.7] .)
Continuous exposure to USED engine oil has caused skin cancer in
laboratory mice. Protect your skin by washing with soap and water
immediately after working with engine oil.
The variable valve timing actuator cannot be disassembled because
it is a precision unit.