Cylinder Head Disassembly


  1. REMOVE VALVE STEM CAP

  2. REMOVE INTAKE VALVE

  3. REMOVE EXHAUST VALVE

  4. REMOVE VALVE STEM OIL SEAL

  5. REMOVE VALVE SPRING SEAT

  6. REMOVE NO. 1 STRAIGHT SCREW PLUG WITH HEAD

  7. REMOVE STUD BOLT

Cylinder Head -- Disassembly



1. REMOVE VALVE STEM CAP
  1. Remove the 16 valve stem caps from the cylinder head sub-assembly.

    HINT:
    Arrange the removed parts in the correct order.


2. REMOVE INTAKE VALVE


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Mechanical.Engine.Cylinder Head  Disassembly
  1. Using SST and wooden blocks, compress the valve compression spring and remove the valve spring retainer locks from the valve spring retainer.

    SST
    09202-00021
    09202-70020
  1. Remove the valve spring retainer, valve compression spring and intake valve from the cylinder head sub-assembly.

    HINT:
    Arrange the removed parts in the correct order.


3. REMOVE EXHAUST VALVE


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Mechanical.Engine.Cylinder Head  Disassembly
  1. Using SST and wooden blocks, compress the valve compression spring and remove the valve spring retainer locks from the valve spring retainer.

    SST
    09202-00021
    09202-70020
  1. Remove the valve spring retainer, valve compression spring and exhaust valve from the cylinder head sub-assembly.

    HINT:
    Arrange the removed parts in the correct order.


4. REMOVE VALVE STEM OIL SEAL


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
  1. Using needle-nose pliers, remove the valve stem oil seals from the valve guide bush.



5. REMOVE VALVE SPRING SEAT


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
  1. Using compressed air and a magnet hand, remove the valve spring seat from the cylinder head sub-assembly by blowing air onto it.



6. REMOVE NO. 1 STRAIGHT SCREW PLUG WITH HEAD


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
  1. Using a 6 mm hexagon wrench, remove the 4 No. 1 straight screw plug with heads from the cylinder head sub-assembly.



7. REMOVE STUD BOLT
NOTICE:
If a stud bolt is deformed or its threads are damaged, replace it.