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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Mechanical - Hybrid (Hp2) 6.0L (LFA)) >> Repair Instructions - Off Vehicle >> Cylinder Head Assemble >> Assemble

Cylinder Head Assemble: Assemble

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Valve Stem Keys, Valve Spring Cap & Valve Spring
    GM1559870Courtesy of GENERAL MOTORS CORP.
  1. Clean the cylinder head valve spring shim area.
    2. NOTE: When using the valves and related components again, install the parts to their original location.
  2. Install the valves (228) into the proper port. Refer to Separating Parts .
  3. Install the valve stem oil seal (222).
  4. Install the valve spring (223).
  5. Install the valve spring cap (224).
    6. Fig 2: Compressing Valve Spring Using
    GM260151Courtesy of GENERAL MOTORS CORP.
  6. Using the J 8062:  compressor, compress the valve spring.
  7. Install the valve stem keys.
    1. Use grease in order to hold the keys in place and remove the J 8062:  compressor .
    2. Ensure the keys seat properly in the groove of the valve stem.
    3. Tap the end of the valve stem with a plastic face hammer to seat the keys, if necessary.
    8. Fig 3: Measuring Valve Spring Installed Height
    GM64315Courtesy of GENERAL MOTORS CORP.
  8. Using a ruler, measure the valve spring installed height.

    Measure from the base of the valve spring to the top of the valve spring.

    Specification: 

    • If the installed height exceeds 46.25 mm (1.82 in), install a valve spring shim of approximately 0.5 mm (0.02 in) thick.
    • Do not shim the valve spring to obtain less than the specified height.
    • Do not assemble the components without a spring shim on the cylinder head.

  9. Install the remaining valves, springs, and other components.
    10. Fig 4: Locating Coolant Temperature Sensor
    GM1559875Courtesy of GENERAL MOTORS CORP.
  10. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the coolant temperature sensor (725).
    11. CAUTION: Refer to Fastener Caution .
  11. Install the coolant temperature sensor into the left cylinder head and tighten to 20 N.m (15 lb ft).
    12. Fig 5: Locating Coolant Plug
    GM1559878Courtesy of GENERAL MOTORS CORP.
  12. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the cylinder head plug (229).
  13. Install the cylinder head plug to the right cylinder head. Tighten the cylinder head plug to 20 N.m (15 lb ft).
    14. Fig 6: Locating Cylinder Head Core Hole Plug
    GM1559873Courtesy of GENERAL MOTORS CORP.
  14. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the sides of the cylinder head plugs (216).
  15. Install the cylinder head plugs into the cylinder head.

    A properly installed plug should be installed 2.5 mm (0.1 in) below the end face of the head.

    16. Fig 7: View Of Rivet Plug & Rivet Gun
    GM2202712Courtesy of GENERAL MOTORS CORP.
    NOTE: Second design applications use a rivet type plug at the top rear coolant passage of each cylinder head.
  16. Install the rivet plug into a rivet gun.
    17. Fig 8: Illustrating Rivet Installation
    GM2202713Courtesy of GENERAL MOTORS CORP.
  17. Insert the rivet into the coolant passage of the cylinder head.
  18. Squeezing the handle of the tool, install the rivet.
    19. Fig 9: Rivet-Type Plug
    GM2046466Courtesy of GENERAL MOTORS CORP.
  19. Inspect for proper installation of the rivet (1).

    A properly installed plug should be installed flush with the surface of the head.

    20. Fig 10: Engine Coolant Air Bleed Cover, Bolts & Seals
    GM1408862Courtesy of GENERAL MOTORS CORP.
  20. Installation of the first design coolant air bleed cover (313) and bolt (312) may be used instead of the rivet plug to complete the repair.
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