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Cylinder Head: Installation

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GC0170412Courtesy of CHRYSLER GROUP, LLC
  1. If removed, using a NEW  exhaust manifold gasket, position the exhaust manifold and install the retaining bolts finger tight.
  2. Using the sequence shown, tighten the retaining bolts to the proper specification. Refer to TORQUE SPECIFICATIONS  .
    GC0148464Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    The cylinder head gaskets (1) are not interchangeable between left and right sides. They are marked "UP" to indicate direction to face up and "L" or "R" to indicate left side or right side of engine block.

  3. Clean all sealing surfaces of the engine block and the cylinder head(s) (2).
    NOTE:

    Rotate crankshaft 45° so that all pistons are 1/2 the way down the cylinder bore to avoid piston to valve contact.

  4. Position the NEW  cylinder head gasket(s) (1) onto the engine block.
  5. Position the cylinder head(s) onto the engine block.
  6. Install the cylinder head bolts finger tight.
    CAUTION:

    The 6.4L engine uses a unique 4 layer steel head gasket that must be compressed evenly and completely across the deck surface for proper sealing. The tightening sequence must be followed to ensure all layers are compressed before applying the additional 90 degree turn.

    Fig 1: Cylinder Head Bolt Tightening Sequence
    GC0088039Courtesy of CHRYSLER GROUP, LLC
  7. Using the sequence below, tighten the retaining bolts.
    1. Using the sequence shown, tighten bolts 1-10 to 34 N.m (25 ft. lbs.).
    2. Using the sequence shown, tighten bolts 11-15 to 20 N.m (15 ft. lbs.).
    3. Using the sequence shown, tighten bolts 1-10 to 54 N.m (40 ft. lbs.).
    4. Using the sequence shown, verify bolts 11-15 are 20 N.m (15 ft. lbs.).
    5. Using the sequence shown, tighten bolts 1-10 to 61 N.m (45 ft. lbs.).
    6. Using the sequence shown, rotate bolts 1-10 an additional 90 degrees.
    7. Using the sequence shown, tighten bolts 11-15 to 28 N.m (21 ft. lbs.).
  8. Install the push rods and rocker arms. Refer to ROCKER ARM, VALVE, INSTALLATION .
  9. If removed, install the oil dip stick tube and tighten the retaining nut to the proper specification. Refer to TORQUE SPECIFICATIONS  .
  10. Install the catalytic converters. Refer to CONVERTER, CATALYTIC, INSTALLATION, 6.2L/6.4L .
    GC0095566Courtesy of CHRYSLER GROUP, LLC
  11. Lower the vehicle.
  12. Connect the heater hoses (1, 2).
  13. Install the intake manifold. Refer to MANIFOLD, INTAKE, INSTALLATION .
  14. Connect the fuel supply line.
  15. Change the engine oil and filter. Refer to OIL  .
  16. Fill cooling system. Refer to STANDARD PROCEDURE .
  17. Connect the negative battery cable.
  18. Start the engine and check for leaks.
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