CYLINDER HEAD REASSEMBLY

CAUTION / NOTICE / HINT

Tech Tips

Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly.

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PROCEDURE


  1. INSTALL STUD BOLT

    Note

    If a stud bolt is deformed or its threads are damaged, replace it.


    1. Using E7 and E8 "TORX" socket wrenches, install the stud bolts.

      A001U99C04
      *a Intake Manifold Side *b Exhaust Manifold Side
      *c 24 mm (0.945 in.) *d 13 mm (0.512 in.)
      *e 45 mm (1.772 in.) *f 20 mm (0.787 in.)
      *g 35 mm (1.378 in.) - -
      Torque:
      9.5 N*m  { 97 kgf*cm, 84 in.*lbf }

  2. INSTALL NO. 2 STRAIGHT SCREW PLUG

    Note

    If coolant leaks from the No. 2 straight screw plug or the plug is corroded, replace it.


    1. A001VSK

      Using a 10 mm hexagon wrench, install 3 new gaskets and the 3 No. 2 straight screw plugs.

      Torque:
      44 N*m  { 449 kgf*cm, 32 ft.*lbf }

  3. INSTALL VALVE SPRING SEAT


    1. Install the valve spring seat to the cylinder head sub-assembly.

  4. INSTALL VALVE STEM OIL SEAL


    1. A001U5ZC20
      *a Intake Side
      *b Exhaust Side
      *c Gray
      *d Black

      Apply a light coat of engine oil to new valve stem oil seals.

      Note

      Pay attention when installing the valve stem oil seals. For example, installing an intake side valve stem oil seal to the exhaust side or installing an exhaust side valve stem oil seal to the intake side can cause installation problems later.

      Tech Tips

      The intake side valve stem oil seal is gray and the exhaust side valve stem oil seal is black.

    2. A001Y8MC01
      *a Correct
      *b Incorrect

      Using SST, push in the valve stem oil seals.

      SST
      09201-41020

      Note

      Failure to use SST will cause the valve stem oil seal to be damaged or improperly seated.

  5. INSTALL INTAKE VALVE


    1. A001WGNC02
      *a 30 mm (1.18 in.) or more

      Sufficiently apply engine oil to the tip area of the intake valve shown in the illustration.

    2. A001TWXC01
      *1 Compression Spring
      *2 Valve Spring Retainer
      *3 Cylinder Head
      *a Upper Side

      Install the intake valve, inner compression spring and valve spring retainer to the cylinder head sub-assembly.

      Note


      • Install the compression spring with its taper side facing upward (towards the valve spring retainer).

      • Install the same parts in the same combination to the original locations.


      1. A001VKEN01

        Using SST, compress the inner compression spring and install the valve spring retainer locks.

        SST
        09202-70020
      2. A001SDI

        Using a plastic hammer, lightly tap the valve stem tip to ensure a proper fit.

        Note


        • Be careful not to damage the valve stem tip.

        • Be careful not to damage the valve spring retainer.

  6. INSTALL EXHAUST VALVE


    1. A001SVFC01
      *a 30 mm (1.18 in.) or more

      Sufficiently apply engine oil to the tip area of the exhaust valve shown in the illustration.

    2. A001TWXC01
      *1 Compression Spring
      *2 Valve Spring Retainer
      *3 Cylinder Head
      *a Upper Side

      Install the exhaust valve, inner compression spring and valve spring retainer to the cylinder head sub-assembly.

      Note


      • Install the compression spring with its taper side facing upward (towards the valve spring retainer).

      • Install the same parts in the same combination to the original locations.


      1. A001TLNN01

        Using SST, compress the inner compression spring and install the valve spring retainer locks.

        SST
        09202-70020
      2. A001Y14

        Using a plastic hammer, lightly tap the valve stem tip to ensure a proper fit.

        Note


        • Be careful not to damage the valve stem tip.

        • Be careful not to damage the valve spring retainer.