CYLINDER HEAD DISASSEMBLY

PROCEDURE

1. REMOVE VALVE STEM CAP

   1. 

      Remove the 16 valve stem caps.

      Tip:

      Arrange the removed parts in the correct order.

2. REMOVE INTAKE VALVE

   

   *A	Type A
   *B	Type B
   *1	No. 1 Valve Rocker Arm Sub-assembly
   *2	Valve Spring Retainer
   *3	Compression Spring
   *4	Valve Lash Adjuster Assembly

   Tip:

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

   Type	Compression Spring Shape
   A	Straight
   B	Tapered

   1. Type A:

      1. Place the cylinder head sub-assembly on wooden blocks.

      2. 

         *a	Wooden Block

         Using SST and wooden blocks, compress and remove the valve spring retainer locks.

         09202-70020

         09202-00010

         Tip:

         Arrange the removed parts in the correct order.

      3. Remove the valve spring retainer, inner compression spring and intake valve.

         Tip:

         Arrange the removed parts in the correct order.

   2. Type B:

      1. Place the cylinder head sub-assembly on wooden blocks.

      2. 

         *a	Wooden Block

         Using SST and wooden blocks, compress and remove the valve spring retainer locks.

         09202-70020

         09202-00020

         Tip:

         Arrange the removed parts in the correct order.

      3. Remove the valve spring retainer, inner compression spring and intake valve.

         Tip:

         Arrange the removed parts in the correct order.

3. REMOVE EXHAUST VALVE

   

   *A	Type A
   *B	Type B
   *1	No. 1 Valve Rocker Arm Sub-assembly
   *2	Valve Spring Retainer
   *3	Compression Spring
   *4	Valve Lash Adjuster Assembly

   Tip:

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

   Type	Compression Spring Shape
   A	Straight
   B	Tapered

   1. Type A:

      1. Place the cylinder head sub-assembly on wooden blocks.

      2. 

         *a	Wooden Block

         Using SST and wooden blocks, compress and remove the valve spring retainer locks.

         09202-70020

         09202-00010

         Tip:

         Arrange the removed parts in the correct order.

      3. Remove the valve spring retainer, inner compression spring and exhaust valve.

         Tip:

         Arrange the removed parts in the correct order.

   2. Type B:

      1. Place the cylinder head sub-assembly on wooden blocks.

      2. 

         *a	Wooden Block

         Using SST and wooden blocks, compress and remove the valve spring retainer locks.

         09202-70020

         09202-00020

         Tip:

         Arrange the removed parts in the correct order.

      3. Remove the valve spring retainer, inner compression spring and exhaust valve.

         Tip:

         Arrange the removed parts in the correct order.

4. REMOVE VALVE STEM OIL SEAL

   1. 

      Using needle-nose pliers, remove the valve stem oil seals.

5. REMOVE VALVE SPRING SEAT

   1. 

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

6. REMOVE NO. 2 STRAIGHT SCREW PLUG

   Note:

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

   1. 

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