Cylinder Head Assembly: Specifications

INSPECTION

INSPECT CYLINDER HEAD FOR FLATNESS
a. Using a precision straight edge and a feeler gauge, measure the surface contacting the cylinder block and the manifolds for warpage.
Maximum warpage:
Cylinder block side 0.05 mm (0.0020 inch)
Intake manifold side 0.10 mm (0.0039 inch)
Exhaust manifold side 0.10 mm (0.0039 inch)





INSPECT CYLINDER HEAD SET BOLT
a. Using vernier calipers, measure the tension portion diameter of the bolt.
Standard outside diameter: 8.95 - 9.05 mm (0.3524 - 0.3563 inch)
Minimum outside diameter: 8.75 mm (0.3775 inch)
If the diameter is less than minimum, replace the bolt.

TIGHTNING PROCEDURES (RH)





INSTALL CYLINDER HEAD GASKET
a. Place a new cylinder head gasket on the cylinder block surface with the R mark upward.

NOTICE:
^ Remove any oil from the contact surface.
^ Be careful of the installation direction.
^ Place the cylinder head quietly in order not to damage the gasket at the bottom part of the head.

INSTALL CYLINDER HEAD SUB-ASSY

NOTICE: The cylinder head bolts are tightened in 2 progressive steps.

a. Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts.
b. Install the plate washer to the cylinder head bolt.





c. Install and uniformly tighten the 8 cylinder head bolts, in several passes, in the sequence shown.
Torque: 54 Nm (551 kgf-cm, 40 ft. lbs.)





d. Mark the front side of each cylinder head bolt head with paint.
e. Retighten the cylinder head bolts by 90° in the sequence shown.
f. Check that the painted mark is now at a 90° angle to the front.





g. Using an 8 mm socket hexagon wrench, install the hexagon bolt.
Torque: 19 Nm (189 kgf-cm, 14 ft. lbs.)

TIGHTENING PROCEDURES (LH)





INSTALL CYLINDER HEAD GASKET NO.2
a. Place a new cylinder head gasket on the cylinder block surface with the L mark upward.

NOTICE:
^ Remove any oil from the contact surface.
^ Be careful of the installation direction.
^ Place the cylinder head quietly in order not to damage the gasket at the bottom part of the head.

INSTALL CYLINDER HEAD LH

NOTICE: The cylinder head bolts are tightened in 2 progressive steps.

a. Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts.
b. Install the plate washer to the cylinder head bolt.





c. Install and uniformly tighten the 8 cylinder head bolts, in several passes, in the sequence shown.
Torque: 54 Nm (551 kgf-cm 40 ft. lbs.)





d. Mark the front side of each cylinder head bolt head with paint.
e. Retighten the cylinder head bolts by 90° in the sequence shown.
f. Check that the painted mark is now at a 90° angle to the front.





g. Using an 8 mm socket hexagon wrench, install the hexagon bolt.
Torque: 19 Nm (189 kgf-cm, 14 ft. lbs.)













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