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Cylinder Head: Removal

WARNING: This page is about a different variant/trim than selected.
  1. Remove the engine from the vehicle. Refer to MECHANICAL (STI)>ENGINE ASSEMBLY>REMOVAL .
  2. Remove the intake manifold. Refer to FUEL INJECTION (FUEL SYSTEMS) (STI)>INTAKE MANIFOLD>REMOVAL .
  3. Remove the secondary air combination valve. Refer to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>SECONDARY AIR COMBINATION VALVE>REMOVAL .
  4. Remove the camshaft. Refer to MECHANICAL (STI)>CAMSHAFT>REMOVAL .
  5. Remove the A/C compressor. Refer to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>COMPRESSOR>REMOVAL>STI MODEL .
  6. Remove the oil level gauge guide. (LH side only)
  7. Remove the cylinder head bolts in alphabetical order shown in the figure.
    NOTE: Leave the bolts (A) and (D) engaged by three or four threads to prevent the cylinder head from falling.
    Fig 1: Cylinder Head Bolts Loosening Sequence
    G08539337Courtesy of SUBARU OF AMERICA, INC.
  8. While tapping the cylinder head with a plastic hammer, separate it from cylinder block. Remove the bolts (A) and (D) to remove cylinder head.
    G08539337Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the cylinder head gasket.
CAUTION: Be careful not to scratch the mating surface of cylinder head and cylinder block.
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