VALVE CLEARANCE ADJUSTMENT

PROCEDURE


  1. REMOVE AIR CLEANER CAP SUB-ASSEMBLY

    Click here

  2. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

    Click here

  3. REMOVE NO. 1 IGNITION COIL

    Click here

  4. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

    Click here

  5. SET NO. 1 CYLINDER TO TDC/EXHAUST

    A01VIR2E01
    Text in Illustration
    *a Timing Mark

    1. Turn the crankshaft pulley clockwise to align the timing mark on the pulley with the timing mark of the timing chain cover.

    2. Make sure that the timing mark of the camshaft sprocket is at the top.

      Tech Tips

      If the matchmarks do not align, turn the crankshaft clockwise one complete revolution and then check that they align.

  6. INSPECT VALVE CLEARANCE

    A01VH13E03
    Text in Illustration
    *a Intake Side
    *b Exhaust Side

    1. Check only the valves indicated.


      1. Using a feeler gauge, measure the clearance between the valve lifter and camshaft.

        Valve clearance (Cold)
        Intake side
        0.145 to 0.235 mm (0.00571 to 0.00925 in.)
        Exhaust side
        0.275 to 0.365 mm (0.01083 to 0.01437 in.)

        Tech Tips

        Insert the feeler gauge from the spark plug side (center).

      2. Record any out-of-specification valve clearance measurements. They will be used later to determine the required replacement valve lifters.

    2. Turn the crankshaft 1 revolution (360°).

    3. A01VLBSE02
      Text in Illustration
      *a Intake Side
      *b Exhaust Side

      Check only the valves indicated.


      1. Using a feeler gauge, measure the clearance between the valve lifter and camshaft.

        Valve clearance (Cold)
        Intake side
        0.145 to 0.235 mm (0.00571 to 0.00925 in.)
        Exhaust side
        0.275 to 0.365 mm (0.01083 to 0.01437 in.)

        Tech Tips

        Insert the feeler gauge from the spark plug side (center).

      2. Record any out-of-specification valve clearance measurements. They will be used later to determine the required replacement valve lifters.

  7. ADJUST VALVE CLEARANCE


    1. Remove the No. 1 and No. 2 camshafts Click here.

    2. Remove the valve lifters Click here.

    3. A01VJ7J

      Using a micrometer, measure the thickness of the removed valve lifters.

    4. Calculate the thickness of a new lifter so that the valve clearance comes within the specified value.

      A Thickness of new lifter
      B Thickness of used lifter
      C Measured valve clearance
      Valve clearance
      Intake A = B + (C - 0.18 mm (0.0071 in.))
      Exhaust A = B + (C - 0.31 mm (0.0122 in.))

      Tech Tips


      • Select a new lifter with a thickness as close to the calculated values as possible.

      • Lifters are available in 29 sizes in increments of 0.020 mm (0.0008 in.), from 5.12 mm (0.2016 in.) to 5.68 mm (0.2236 in.).

      • Refer to the New Lifter Thickness Table on the next 2 pages.

    5. Install the valve lifters Click here.

    6. Install the No. 1 and No. 2 camshafts Click here.

      A01VIGEE01
      *1 Valve Lifter Selection Chart (Intake)
      *2 Measured Clearance mm (in.)
      *3 Installed Lifter Thickness mm (in.)
      A01VEKVE02
      *1 Valve Lifter Selection Chart (Exhaust)
      *2 Measured Clearance mm (in.)
      *3 Installed Lifter Thickness mm (in.)

      Tech Tips

      New lifter thickness mm (in.)
      Lifter No. Thickness Lifter No. Thickness Lifter No. Thickness
      12 5.12 (0.2016) 32 5.32 (0.2094) 52 5.52 (0.2173)
      14 5.14 (0.2024) 34 5.34 (0.2102) 54 5.54 (0.2181)
      16 5.16 (0.2031) 36 5.36 (0.2110) 56 5.56 (0.2189)
      18 5.18 (0.2039) 38 5.38 (0.2118) 58 5.58 (0.2197)
      20 5.20 (0.2047) 40 5.40 (0.2126) 60 5.60 (0.2205)
      22 5.22 (0.2055) 42 5.42 (0.2134) 62 5.62 (0.2213)
      24 5.24 (0.2063) 44 5.44 (0.2142) 64 5.64 (0.2220)
      26 5.26 (0.2071) 46 5.46 (0.2150) 66 5.66 (0.2228)
      28 5.28 (0.2079) 48 5.48 (0.2157) 68 5.68 (0.2236)
      30 5.30 (0.2087) 50 5.50 (0.2165) - -

  8. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY

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  9. INSTALL NO. 1 IGNITION COIL

    Click here

  10. INSTALL AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

    Click here

  11. INSTALL AIR CLEANER CAP SUB-ASSEMBLY

    Click here

  12. INSPECT FOR OIL LEAK