Cylinder Head: Disassembly

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE VALVE ADJUSTING SHIM
1. Remove the valve adjusting shim from the cylinder head.
  HINT
  
  Arrange the removed parts in the correct order
  
  Fig 1: Identifying Valve Adjusting Shim
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INTAKE VALVE
1. Using SST and wooden blocks, compress the inner compression spring and remove the valve spring retainer lock.
  SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)
2. Remove the valve spring retainer, inner compression spring and intake valve.
  HINT.
  
  Arrange the removed parts in the correct order
  
  Fig 2: Removing Intake Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE EXHAUST VALVE
1. Using SST and wooden blocks, compress the inner compression spring and remove the valve spring retainer lock.
  SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)
2. Remove the valve spring retainer, inner compression spring and exhaust valve
  HINT:
  
  Arrange the removed parts in the correct order
  
  Fig 3: Removing Exhaust Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INTAKE VALVE STEM OIL SEAL
1. Using pliers, remove the intake valve stem oil seals from the intake valve stems
Fig 4: Removing Intake Valve Stem Oil Seal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE EXHAUST VALVE STEM OIL SEAL
1. Using pliers, remove the exhaust valve stem oil seals from the exhaust valve stems.
Fig 5: Removing Exhaust Valve Stem Oil Seal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE VALVE SPRING SEAT
1. Using compressed air and a magnetic pick-up tool, remove the valve spring seat by blowing air onto it.
  HINT:
  
  Arrange the removed parts in the correct order
REMOVE NO. 1 STRAIGHT SCREW PLUG
NOTE: If water leaks from the No. 1 screw plug or the plug is corroded, replace it.

Fig 6: Removing Valve Spring Seat
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Using a 10 mm hexagon wrench, remove the 6 screw plugs and 6 gaskets
Fig 7: Locating Straight Screw Plug
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 2 STRAIGHT SCREW PLUG
1. Using a 14 mm hexagon wrench, remove the 2 No. 2 straight screw plugs and 2 gaskets.
  NOTE: If water leaks from the No. 2 screw plug or the plug is corroded, replace it.
  
  Fig 8: Locating Straight Screw Plugs
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002