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Home >> Subaru >> 2004 >> Forester XT, Standard >> Repair and Diagnosis >> Engine Mechanical >> Timing Belt >> Engine Mechanical (H4DOTC) >> Cylinder Head Assembly >> Installation

Cylinder Head Assembly: Installation

  1. Install the cylinder head and gaskets on cylinder block.
    CAUTION:
    • Use new cylinder head gaskets.
    • Be careful not to scratch the mating surface of cylinder head and cylinder block.
  2. Tighten the cylinder head bolts.
    1. Apply a coat of engine oil to the washers and bolt threads.
    2. Tighten all bolts to 29 N.m (3.0 kgf-m, 22 ft-lb) in alphabetical sequence.
    3. Tighten all bolts to 69 N.m (7.0 kgf-m, 51 ft-lb) in alphabetical sequence again.
    4. Back off all bolts by 180° first; back them off by 180° again in reverse order of installation.
    5. Tighten all bolts to 49 N.m (5.0 kgf-m, 36 ft-lb) in alphabetical sequence.
    6. Tighten all bolts 80 to 90° in alphabetical sequence.
    7. Tighten all bolts by 40 to 45° in alphabetical sequence again.
      CAUTION: Do not tighten the bolts by more than 45°.
    8. Further tighten all bolts (A) and (B) by 40 to 45°.
      CAUTION: Ensure that the total "re-tightening angle" in the previous two steps do not exceed 90°.
      Fig 1: Tightening Cylinder Head Bolts
      G00967041Courtesy of SUBARU OF AMERICA, INC.
  3. Install the camshaft. < Ref. to INSTALLATION  . >
  4. Install the A/C compressor bracket on cylinder head.
  5. Install the intake manifold. < Ref. to INSTALLATION , Intake Manifold . >
  6. Install the cam sprocket. < Ref. to INSTALLATION  . >
  7. Install the timing belt assembly. < Ref. to INSTALLATION  . >
  8. Install the timing belt cover. < Ref. to INSTALLATION  . >
  9. Install the crank pulley. < Ref. to INSTALLATION  . >
  10. Install the V-belt, < Ref. to INSTALLATION  . >
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