Valve Clearance Inspection [L5]
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the negative battery cable.
- Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [L5] .)
- Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [L5] .)
- Remove the ventilation hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L5] .)
- Disconnect the camshaft position (CMP) sensor connector.
- Disconnect the oil control valve (OCV) connector.
- Remove the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION [L5] .)
- Set the front mudguard (RH) out of the way. (See FRONT MUDGUARD REMOVAL/INSTALLATION .)
- Remove the splash shield (RH).
- Measure the valve clearance.NOTE:
- Make sure to note down the measured values for choosing the suitable replacement tappets.
- Turn the crankshaft clockwise so that the No. 1 piston is at TDC of the compression stroke.
- Measure the valve clearance at A in the figure.
- If the valve clearance is out of the standard value, adjust it. (See VALVE CLEARANCE ADJUSTMENT [L5] .)
Valve clearance [Engine cold]
IN: 0.22-0.28 mm {0.009-0.011 in}
EX: 0.27-0.33 mm {0.011-0.012 in}
- Turn the crankshaft 360° clockwise so that the No. 4 piston is at TDC of the compression stroke.
- Measure the valve clearance at B in the figure.
- If the valve clearance is out of the standard value, adjust it. (See VALVE CLEARANCE ADJUSTMENT [L5] .)
Valve clearance [Engine cold]
IN: 0.22-0.28 mm {0.009-0.011 in}
EX: 0.27-0.33 mm {0.011-0.012 in}
- Install the splash shield (RH).
- Install the front mudguard (RH). (See FRONT MUDGUARD REMOVAL/INSTALLATION .)
- Install the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION [L5] .)
- Connect the OCV connector.
- Connect the CMP sensor connector.
- Install the ventilation hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L5] .)
- Install the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [L5] .)
- Install the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [L5] .)
- Connect the negative battery cable.