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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 >> Valves (G2796555) >> Removal

Valves (G2796555): Removal

WARNING: This page is about a different variant/trim than selected.
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 cylinder head.

    Refer to: LEFT CYLINDER HEAD 

  4. Remove the right cylinder head.

    Refer to: RIGHT CYLINDER HEAD 

  5. CAUTION: If the cylinder head valve components are to be reused, mark position of the valve components to make sure they are reassembled in the same position.
    NOTE: Repeat this procedure for the remaining valves.
    G11607195Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Install the special tool and compress the valve spring.

      Special Tool(s): 303-252 

    • Remove the 2 collets.
    • Decompress the valve spring and remove the special tool.
    • Remove the valve spring cap and the valve spring.
  6. NOTE: Repeat this procedure for the remaining valves.
    G11607196Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Remove the valve.

  7. NOTE: Repeat this procedure for the remaining valves.
    G11607197Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Use the special tool to remove and discard the valve stem seal.

    Special Tool(s): 303-884 

  8. CAUTION:
    • Make sure that the area around the component is clean and free of foreign material.
    • Make sure the working surfaces are thoroughly clean to avoid contamination of the sensitive components.
    • Make sure that the valve grinding paste is kept away from the valve stem.
    G11607198Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
    • Place a small amount of fine valve grinding paste evenly around the contact face of the valve.
    • Place the valve in position and using a suitable valve grinding tool, rotate the valve back and forth a few degrees on its seat, using light pressure.
    • Raise the valve frequently during lapping and turn it into a new position after a few laps or rotations.
    • Lap only until a continuous but narrow lapping mark is visible on both the valve seat and valve face.
    • Thoroughly clean all surfaces to remove traces of valve grinding paste from the cylinder head, valve seat and valve face.
  9. Repeat the procedure for the remaining valves.
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