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Cylinder Head RH

  1. Clean the bolt holes in the cylinder block RH.
    CAUTION: To avoid erroneous tightening of the bolts, clean out the bolt holes sufficiently by blowing with compressed air to eliminate engine coolant etc.
  2. Apply liquid gasket to both sides of the cylinder head gasket RH as shown in the figure.
    NOTE:
    • Use a new cylinder head gasket RH.
    • Before applying liquid gasket, degrease the mating surface of cylinder blocks RH and cylinder head RH.
    • Install within 5 min. after applying liquid gasket.

    Liquid gasket: 

    THREE BOND 1217G (Part No. 0877Y0100) or equivalent 

    Liquid gasket applying diameter: 

    3±1 mm (0.1181±0.0394 in) 

    Fig 1: Identifying Liquid Gasket Applying Area On Cylinder Head Gasket RH
    G08580249Courtesy of SUBARU OF AMERICA, INC.
  3. Attach the cylinder head gasket RH.
    NOTE: Check that liquid gasket RH is squeezed out from the cylinder head gasket.
  4. Install the cylinder head RH to the cylinder block RH.
    CAUTION: Be careful not to scratch the mating surface of cylinder head RH and cylinder block RH.
    1. Clean the cylinder head bolt threads and apply sufficient engine oil to the washer and cylinder head bolts threads.
    2. Mount the cylinder head RH onto the cylinder block RH, and tighten all bolts with a torque of 29 N.m (3.0 kgf-m, 21.4 ft-lb) in numerical order as shown in the figure.
      Fig 2: Identifying Tightening Sequence Of Cylinder Head RH Mounting Bolts
      G08317088Courtesy of SUBARU OF AMERICA, INC.
    3. Tighten all cylinder head bolts further with a torque of 100 N.m (10.2 kgf-m, 73.8 ft-lb) in numerical order as shown in the figure.
      CAUTION: If the bolt makes stick-slip sound during tightening, repeat the procedure from step  1). In that case, the cylinder head gasket RH can be reused. But it is necessary to remove liquid gasket completely from cylinder block RH, cylinder head RH and cylinder head gasket RH and re-apply to them.
      Fig 3: Identifying Tightening Sequence Of Cylinder Head Mounting Bolts
      G08317089Courtesy of SUBARU OF AMERICA, INC.
    4. Loosen all cylinder head bolts 180° in numerical order as shown in the figure, and then loosen all cylinder head bolts 180° further in numerical order as shown in the figure.
      Fig 4: Identifying Loosening Sequence Of Cylinder Head Mounting Bolts
      G08317090Courtesy of SUBARU OF AMERICA, INC.
    5. Tighten all cylinder head bolts with a torque of 42 N.m (4.3 kgf-m, 31.0 ft-lb) in numerical order as shown in the figure.
      Fig 5: Identifying Tightening Sequence Of Cylinder Head Mounting Bolts
      G08317089Courtesy of SUBARU OF AMERICA, INC.
    6. Using ST2, tighten all cylinder head bolts with specified angle in numerical order as shown in the figure.
      NOTE: Attach the magnet used for securing the ST2 (ANGLE GAUGE) to ST1.

      ST1 499817100 ENGINE STAND

      ST2 18854AA000 ANGLE GAUGE

      Tightening angle: 

      80°±2° 

      Fig 6: Tightening Cylinder Head Bolts Using Angle Gauge
      G08317092Courtesy of SUBARU OF AMERICA, INC.
    7. Using ST2, tighten the cylinder head bolts (2 places) with specified angle in numerical order as shown in the figure.
      NOTE: Attach the magnet used for securing the ST2 (ANGLE GAUGE) to ST1.

      ST1 499817100 ENGINE STAND

      ST2 18854AA000 ANGLE GAUGE

      Tightening angle: 

      75°±2° 

      Fig 7: Tightening Cylinder Head Bolts Using Angle Gauge (2 Places)
      G08317093Courtesy of SUBARU OF AMERICA, INC.
    8. Using ST2, tighten the cylinder head bolts (4 places) with specified angle in numerical order as shown in the figure.
      NOTE:
      • After tightening, if the liquid gasket is squeezed out onto the seal surface of the chain cover, completely remove any squeezed-out liquid gasket.
      • Attach the magnet used for securing the ST2 (ANGLE GAUGE) to ST1.

      ST1 499817100 ENGINE STAND

      ST2 18854AA000 ANGLE GAUGE

      Tightening angle: 

      30°±2° 

      Fig 8: Tightening Cylinder Head Bolts Using Angle Gauge (4 Places)
      G08317094Courtesy of SUBARU OF AMERICA, INC.
  5. Install the EGR pipe assembly to the water pipe assembly and the cylinder block RH.
    NOTE: Use a new gasket.

    Tightening torque: 

    T1: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    T2: 51 N.m (5.2 kgf-m, 37.6 ft-lb) 

    Fig 9: EGR Pipe Assembly Mounting Bolts With Torque Specifications
    G08547983Courtesy of SUBARU OF AMERICA, INC.
  6. Install the cam carrier RH. Refer to CAM CARRIER RH .
  7. Install the rocker cover RH. Refer to ROCKER COVER RH .
  8. Install the chain cover. Refer to INSTALLATION .
  9. Install the tumble generator valve assembly RH. Refer to INSTALLATION .
  10. Install the intake manifold. Refer to INSTALLATION .
  11. Install the engine to the vehicle. Refer to INSTALLATION .