Cylinder Head - Disassembly

Brand:

Toyota

Model Name:

Yaris NCP90 91 92 93

Manual:

Repair Manual

Section:

1Nz-Fe Engine Mechanical

Title:

Cylinder Head

  1. Remove with head taper screw plug no. 1

  2. Remove valve lifter

  3. Remove with head taper screw plug no. 2

  4. Remove oil control valve filter

  5. Remove intake valve

  6. Remove exhaust valve

  7. Remove valve stem oil seal

  8. Remove valve spring seat

  9. Remove stud bolt

  10. Remove camshaft bearing cap setting ring pin



1. REMOVE WITH HEAD TAPER SCREW PLUG NO. 1


Using a 10 mm socket hexagon wrench, remove the taper screw plug and the gasket. Yaris
  1. Using a 10 mm socket hexagon wrench, remove the taper screw plug and the gasket.



2. REMOVE VALVE LIFTER
HINT:
Keep the valve lifters in the correct order so that they can be returned to their original locations when reassembled.


3. REMOVE WITH HEAD TAPER SCREW PLUG NO. 2


Using an 8 mm hexagon wrench, remove the taper screw plug. Yaris
  1. Using an 8 mm hexagon wrench, remove the taper screw plug.



4. REMOVE OIL CONTROL VALVE FILTER


5. REMOVE INTAKE VALVE


Using SST, compress the valve spring and remove the 2 retainer locks, retainer and valve spring.SST09202-70020 (09202-00010)HINT: Keep the valves, valve springs, spring seats and spring retainers in the correct order so that they can be returned to their original locations when reassembled. Yaris
  1. Using SST, compress the valve spring and remove the 2 retainer locks, retainer and valve spring.

    SST
    09202-70020 (09202-00010)
    HINT:
    Keep the valves, valve springs, spring seats and spring retainers in the correct order so that they can be returned to their original locations when reassembled.


6. REMOVE EXHAUST VALVE
  1. Using SST, compress the valve spring and remove the 2 retainer locks, retainer and valve spring.

    SST
    09202-70020 (09202-00010)
    HINT:
    Keep the valves, valve springs, spring seats and spring retainers in the correct order so that they can be returned to their original locations when reassembled.


7. REMOVE VALVE STEM OIL SEAL


Using needle-nose pliers, remove the oil seal. Yaris
  1. Using needle-nose pliers, remove the oil seal.



8. REMOVE VALVE SPRING SEAT


Using compressed air and a magnetic finger, remove the valve spring seats. Yaris
  1. Using compressed air and a magnetic finger, remove the valve spring seats.



9. REMOVE STUD BOLT
  1. Using "Torx" socket wrenches E5 and E7, remove the 7 stud bolts.



10. REMOVE CAMSHAFT BEARING CAP SETTING RING PIN