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Home >> Land Rover >> 2022 >> Defender 90 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine - V8 S/C 5.0L Petrol -- Defender/L663 (1 Of 2)) >> Engine - V8 S/C 5.0L Petrol (G2796528) >> Removal And Installation >> Left Cylinder Head (G2796540) >> Removal

Left Cylinder Head (G2796540): Removal

WARNING: This page is about a different variant/trim than selected.
WARNING:
  • Make sure the engine cooling system is cool prior to doing this procedure.
  • Be prepared to collect escaping oil.
CAUTION:
  • Be prepared to collect escaping coolant.
  • Engine coolant will damage the paint finished surfaces. If split, immediately remove the coolant and clean the area with water.
NOTE:
  • This procedure contains some variation in the illustrations depending on the vehicle specification, but the essential information is always correct.
  • This procedure contains illustrations showing certain components removed to provide extra clarity.
  1. Disconnect the 12 V system.

    Refer to: 12V SYSTEM DISCONNECT AND CONNECT

  2. Raise and support the vehicle on a suitable 2 post lift.

    Refer to: JACKING AND LIFTING

  3. Remove the left camshafts.

    Refer to: LEFT CAMSHAFT 

  4. Remove the left exhaust manifold.

    Refer to: LEFT EXHAUST MANIFOLD 

  5. Partially drain the engine cooling system.

    Refer to: COOLING SYSTEM PARTIAL DRAINING AND VACUUM FILLING

  6. G15321878Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Release the clip.
    • Reposition the wiring harness away from the cylinder head.
  7. G15321879Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Disconnect the 2 electrical connectors.
    • Release the 2 clips as illustrated.
    • Release the knock sensor wiring harness assembly and reposition away from the cylinder head.
  8. G15321880Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Release the clip.
    • Remove the bolt.
    • Position the breather pipe away from the rear coolant manifold.
  9. WARNING: Be prepared to collect escaping fluids.
    G15321881Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Release the coolant hose from the 2 clips.
    • Release the clamp.
    • Release the rear coolant manifold left hose.
  10. G15321882Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Disconnect the electrical connector.
    • Release the 2 wiring harness clips.
    • Release the electrical connector clip.
  11. WARNING: Be prepared to collect escaping fluids.
    G15321883Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Remove the 4 bolts.
    • Remove the rear coolant manifold.
  12. NOTE: This step is only required if new components are not installed.
    G14057703Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Remove and discard the 2 O-ring seals.

  13. G15321885Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Remove and discard the 2 M6 bolts.
    • Remove and discard the M8 bolt.
    • Use the special tool to remove and discard the 10 M11 bolts.

      Special Tool(s): JLR-303-1653  , 303-1492 

    • With the aid of another technician, remove the left cylinder head.
  14. G14053121Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Remove and discard the left cylinder head gasket.

  15. CAUTION:
    • If a new cylinder head has been installed then new tappets must be installed.
    • If the cylinder head is being removed without a new component being installed, the tappets must be installed in their original positions.
    NOTE: Note the installed position of the components before removal.
    G15321887Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Remove the 16 tappets.

  16. G15321888Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Use a suitable plastic scraper to clean the cylinder head mating surfaces.

  17. NOTE:
    • Do not disassemble further if the component is removed for access only.
    • Note the fitted position of the sensors prior to removal.
    G15321889Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Remove the 2 bolts.
    • Remove the 2 knock sensors.
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