Cylinder Head RH

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 Both Sides Of Cylinder Head Gasket RH

Courtesy of SUBARU OF AMERICA, INC.

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, then 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 Cylinder Head RH Bolts Tightening Sequence

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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 Cylinder Head Bolts Tightening Sequence

   Courtesy 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 Cylinder Head Bolts Loosening Bolts

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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 Cylinder Head Bolts Tightening Sequence

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6. Tighten all cylinder head bolts with specified angle in numerical order as shown in the figure using ST2.
   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 (Tightening Angle 80°±2°)

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7. Tighten the cylinder head bolts (2 places) with specified angle in numerical order as shown in the figure using ST2.
   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 (Tightening Angle 75°±2°)

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8. Tighten the cylinder head bolts (4 places) with specified angle in numerical order as shown in the figure using ST2.
   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 (Tightening Angle 30°±2°)

   Courtesy of SUBARU OF AMERICA, INC.

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: Identifying EGR Pipe Assembly With Bolts

Courtesy of SUBARU OF AMERICA, INC.