CYLINDER HEAD DISASSEMBLY

PROCEDURE


  1. REMOVE INTAKE VALVE

    Tech Tips

    Type A and type B can be distinguished by the shape of the inner compression spring.

    A0054C9E04
    Type Shape of the Inner Compression Spring
    A Straight
    B Taper

    1. for Type A:


      1. A005719E02

        Place the cylinder head on wooden blocks.

      2. Using SST, compress the compression spring and remove the valve retainer locks.

        SST
        09202-70020   ( 09202-00010 )

        Tech Tips

        Arrange the removed parts in the correct order.

      3. Remove the retainer, compression spring and valve.

        Tech Tips

        Arrange the removed parts in the correct order.

    2. for Type B:


      1. A0058IKE01

        Place the cylinder head on wooden blocks.

      2. Using SST, compress the compression spring and remove the valve retainer locks.

        SST
        09202-70020
        09202-00021

        Tech Tips

        Arrange the removed parts in the correct order.

      3. Remove the retainer, compression spring and valve.

        Tech Tips

        Arrange the removed parts in the correct order.

  2. REMOVE EXHAUST VALVE

    Tech Tips

    Type A and type B can be distinguished by the shape of the inner compression spring.

    A0054C9E04
    Type Shape of the Inner Compression Spring
    A Straight
    B Taper

    1. for Type A:


      1. A0058V4E02

        Place the cylinder head on wooden blocks.

      2. Using SST, compress the compression spring and remove the valve retainer locks.

        SST
        09202-70020   ( 09202-00010 )

        Tech Tips

        Arrange the removed parts in the correct order.

      3. Remove the retainer, compression spring and valve.

        Tech Tips

        Arrange the removed parts in the correct order.

    2. for Type B:


      1. A0057RXE01

        Place the cylinder head on wooden blocks.

      2. Using SST, compress the compression spring and remove the valve retainer locks.

        SST
        09202-70020
        09202-00021

        Tech Tips

        Arrange the removed parts in the correct order.

      3. Remove the retainer, compression spring and valve.

        Tech Tips

        Arrange the removed parts in the correct order.

  3. REMOVE VALVE STEM OIL SEAL


    1. A0052C0

      Using needle-nose pliers, remove the oil seals.

  4. REMOVE VALVE SPRING SEAT


    1. A0053SK

      Using compressed air and a magnet hand, remove the valve spring seats by blowing air onto them.

  5. REMOVE NO. 2 STRAIGHT SCREW PLUG

    Note

    If water leaks from the straight screw plug or the plug is corroded, replace it.

    A0053UU

    1. Using a 10 mm straight hexagon wrench, remove the 3 screw plugs and 3 gaskets.

  6. REMOVE STUD BOLT

    Note

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