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Cylinder Head: Installation

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Cylinder Head Bolt Tightening Sequence
GC0108502Courtesy of CHRYSLER GROUP, LLC
WARNING:

THE OUTSIDE EDGE OF THE HEAD GASKET IS VERY SHARP. WHEN HANDLING THE NEW HEAD GASKET, USE CARE NOT TO INJURE YOURSELF.

  1. Clean the gasket sealing surfaces. Refer to ENGINE GASKET SURFACE PREPARATION  .
  2. Install a NEW  cylinder head gasket with the part number side up, and locate the gasket over the dowel sleeves.
  3. Using an engine lifting crane, lower the cylinder head onto the engine.
  4. Lightly lubricate the under side of bolt head and on threads, with engine oil and install. Using the sequence shown in illustration, tighten bolts in the following steps:
    • Step 1 Tighten the bolts to 70 N.m (52 ft. lbs.).
    • Step 2 Back off 360° in sequence.
    • Step 3 Tighten the bolts to 105 N.m (77 ft. lbs.).
    • Step 4 Re-check all bolts to 105 N.m (77 ft. lbs.).
    • Step 5 Tighten all the bolts an additional 1/4 turn (90°).

    Install the fuel injectors. Refer to INSTALLATION .

    GC0169614Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The cowl panel provided access holes to allow the installation of the cylinder 5 exhaust and cylinder 6 intake and exhaust push rods. Install the rubber plugs in the access holes.

  5. Install the push rods (1) into their original locations. Verify that they are seated in the tappets  .
    GC0169609Courtesy of CHRYSLER GROUP, LLC
  6. Lubricate the valve stem tips and install the crossheads (4) in their original locations.
  7. Lubricate the rocker arms (2) and pedestals (3) and install them in their original locations. Install the bolts (1) and tighten to 36 N.m (27 ft. lbs.).
  8. Adjust the intake and exhaust valve lash on cylinders 4, 5, and 6. Refer to STANDARD PROCEDURE  .
  9. Install the rocker housing and cylinder head cover. Refer to COVER(S), CYLINDER HEAD, INSTALLATION, 6.7L .
    CAUTION:

    Failure to follow procedure will result in fuel leaks or fuel system failure.

  10. Install the fuel rail. Refer to RAIL, FUEL, INSTALLATION .
  11. Install the air intake heater wire harness. Tighten the nut to 10 N.m (89 in. lbs.).
  12. Install the air intake heater wire to front of cylinder head. Tighten the three bolts to 24 N.m (18 ft. lbs.).
  13. Install the intake manifold. Refer to INSTALLATION .
  14. Install the fasteners securing the oil dip stick tube. Tighten the fasteners to:
    • Tighten the bolt to 24 N.m (18 ft. lbs.).
    • Tighten the nut to 9 N.m (80 in. lbs.).
    GC0155284Courtesy of CHRYSLER GROUP, LLC
  15. Connect the Engine Coolant Temperature (ECT) sensor connector (1).
    GC0155347Courtesy of CHRYSLER GROUP, LLC
  16. If equipped, install the ECT sensor shield (1). Tighten the bolts (2) to 9 N.m (80 in. lbs.).
    GC0155162Courtesy of CHRYSLER GROUP, LLC
  17. Connect the TMAP sensor wire harness connector (3).
  18. Install the Charge Air Cooler-to-air inlet housing tube. Tighten all clamps to 11 N.m (8 ft. lbs.).
  19. Connect the upper radiator hose to thermostat housing.
  20. Install the generator. Refer to GENERATOR, INSTALLATION .
  21. Install fan shroud support brackets and tighten to 32 N.m (24 ft. lbs.).
  22. Install cooling fan/drive/shroud assembly. Refer to FAN, COOLING, VISCOUS, INSTALLATION .
  23. Connect the heater core supply and return hoses to the cylinder head and heater pipe.
  24. Install the exhaust manifold. Refer to INSTALLATION .
  25. Connect both negative battery cables.
  26. Fill engine coolant. Refer to STANDARD PROCEDURE .
  27. Start engine and check for leaks.
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