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Home >> Mazda >> 2011 >> 6 s Touring Plus >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Mechanical (Service Information MZR 2.5)) >> Valve Clearance Inspection

Valve Clearance Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the negative battery cable.
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  3. Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION .)
  4. Remove the ventilation hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  5. Disconnect the camshaft position (CMP) sensor connector.
  6. Disconnect the oil control valve (OCV) connector.
  7. Remove the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION .)
  8. Set the front mudguard (RH) out of the way. (See FRONT MUDGUARD REMOVAL/INSTALLATION .)
  9. Remove the splash shield (RH).
  10. Measure the valve clearance.
    NOTE:
    • Make sure to note down the measured values for choosing the suitable replacement tappets.
    1. Turn the crankshaft clockwise so that the No. 1 piston is at TDC of the compression stroke.
    2. Measure the valve clearance at A in the illustration.

      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} 

    3. Turn the crankshaft 360° clockwise so that the No. 4 piston is at TDC of the compression stroke.
    4. Measure the valve clearance at B in the illustration.

      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) 

      Fig 1: Valve Clearance Measuring Points
      G06199765Courtesy of MAZDA MOTORS CORP.
  11. install the splash shield (RH).
  12. Install the front mudguard (RH). (See FRONT MUDGUARD REMOVAL/INSTALLATION .)
  13. Install the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION .)
  14. Connect the OCV connector.
  15. Connect the CMP sensor connector.
  16. Install the ventilation hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  17. install the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION .)
  18. Install the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  19. Connect the negative battery cable.