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Cylinder Head: Installation

NOTE: The cylinder head bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts must be replaced (Fig 1)

Necking can be checked by holding a straight edge against the threads. If all the threads do not contact the scale, the bolt must be replaced (Fig 1)

CAUTION: When cleaning cylinder head and cylinder block surfaces, DO NOT use a metal scraper because the surfaces could be cut or ground. Use ONLY a wooden or plastic scraper.
Fig 1: Checking For Stretched Bolts
G02709546Courtesy of DAIMLERCHRYSLER CORP.
  1. Clean sealing surfaces of cylinder head and block. (Refer to STANDARD PROCEDURE ).
  2. Install new head gasket over locating dowels.
  3. Install cylinder head to block, assuring head is properly positioned over locating dowels.
  4. Lubricate bolt threads with clean engine oil and install bolts.
  5. Tighten bolts in sequence shown in (Fig 2), using the following steps and torque values:
    • Step 1: Bolts 1-8 to 48 N.m (35 ft. lbs.)
    • Step 2: Bolts 1-8 to 75 N.m (55 ft. lbs.)
    • Step 3: Bolts 1-8 to 75 N.m (55 ft. lbs.)
    • Step 4: Bolts 1-8 to +90° Turn Do not use a torque wrench for this step. 
    • Step 5: Bolts 9-11 to 28 N.m (250 in. lbs.)
      Fig 2: Tightening Cylinder Head Bolts In Sequence
      G02709547Courtesy of DAIMLERCHRYSLER CORP.
  6. Connect catalytic converter to exhaust manifold with a new V-Band clamp. Tighten V-Band clamp to 10 N.m (100 in. lbs.).
  7. Install all valve train components and camshafts. (Refer to INSTALLATION ). Tighten camshaft bearing caps in sequence shown in (Fig 3)
    Fig 3: Tightening Camshaft Bearing Cap Bolts In Sequence
    G02709548Courtesy of DAIMLERCHRYSLER CORP.
  8. Install timing chain and sprockets. (Refer to INSTALLATION ).
  9. Install water outlet connector (Figure). (Refer to COOLANT OUTLET CONNECTOR - 2.7L ).
  10. Install cylinder head covers. (Refer to INSTALLATION ).
  11. Install timing chain cover and crankshaft vibration damper. (Refer to INSTALLATION ). (Refer to INSTALLATION ).
  12. Install lower and upper intake manifolds. (Refer to appropriate procedure).
  13. Install accessory drive belts. (Refer to ACCESSORY DRIVE ).
  14. Fill cooling system. (Refer to STANDARD PROCEDURE ).
  15. Connect negative cable to remote jumper terminal.
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