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Cylinder Head Assemble

  1. Apply sealant to all plugs prior to installation. Refer to Adhesives, Fluids, Lubricants, and Sealers (Europe LV7)Adhesives, Fluids, Lubricants, and Sealers (Europe L5Q) .
  2. GM4064805Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Component Fastener Tightening Caution .

    Install a NEW cylinder head core hole plug (1) in the rear of the cylinder head. Tighten the plug to 25 N.m (18 lb ft).

  3. GM4064804Courtesy of GENERAL MOTORS COMPANY

    Install a NEW cylinder head core hole plug (1) in the side of the cylinder head. Tighten the plug to 25 N.m (18 lb ft).

  4. GM4064801Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

    Install 3 NEW cylinder head studs (2). Tighten the studs to 10 N.m (89 lb in)

  5. Install 2 NEW cylinder head oil gallery plugs (1) in the side of the cylinder head.
  6. Fig 1: Identifying Cylinder Head Components (Europe)
    GM4064799Courtesy of GENERAL MOTORS COMPANY

    Install a NEW cylinder head plug (6). Tighten the plug to 75 N.m (55 lb ft).

  7. Install a NEW cylinder head oil restrictor plug (4).
  8. Install a NEW cylinder head oil gallery plug (5) in the front of the cylinder head.
  9. Install 2 NEW cylinder head core hole plugs (3) in the top of the cylinder head. Tighten the plugs to 25 N.m (18 lb ft).
  10. Install 2 camshaft bearing front cap locating pins (2).
  11. Install the camshaft bearing lower cap (1).
  12. GM4064806Courtesy of GENERAL MOTORS COMPANY

    If necessary, install new engine oil manifold check valves (3):

    1. Use lubricant included with EN-46122  remover/installer to lubricate the outside of the new check valve (3).
    2. With the check ball end of the check valve facing DOWN, towards the head, insert the NEW check valve into the check valve bore in the cylinder head.
    3. Place EN-46122-2  collar (2) over the new check valve with the slightly-larger inside diameter of the collar DOWN toward the cylinder head.
    4. Using the EN-46122-1  driver (1), lightly tap the new check valve into place until the driver stops against the top of the collar.
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