Cylinder Head Assembly: Specifications

SERVICE DATA AND SPECIFICATIONS (SDS)


Cylinder Head


CYLINDER HEAD






VALVE DIMENSIONS









VALVE GUIDE





VALVE SEAT









VALVE SPRING








CYLINDER HEAD BOLTS OUTER DIAMETER
- Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between (C) and (B) exceeds the limit, replace them with new one.





Limit [(C) - (B)] : 0.18 mm (0.0071 in)

- If reduction of outer diameter appears in a position other than (B), use it as (B) point.

CYLINDER HEAD BOLTS





a. Apply new engine oil to threads and seat surfaces of cylinder head bolts.
b. Tighten all cylinder head bolts.
Torque: 105 Nm (11 kg-m, 77 ft-lb)

c. Completely loosen all cylinder head bolts.
Torque: 0 Nm (0 kg-m, 0 ft-lb)

In step "c", loosen bolts in reverse order of that indicated in the figure.
d. Tighten all cylinder head bolts.
Torque: 40.0 Nm (4.1 kg-m, 30 ft-lb)

e. Turn all cylinder head bolts 95 degrees clockwise (angle tightening).

f. Turn all cylinder head bolts 95 degrees clockwise again (angle tightening).

INTAKE MANIFOLD COLLECTOR

- If stud bolts were removed, install them and tighten to the specified torque below.

Torque: 10.8 Nm (1.1 kg-m, 8 ft-lb)





- Tighten mounting bolts and nuts in numerical order as shown in the figure.

INTAKE MANIFOLD BOLTS





- Tighten all mounting bolts and nuts to the specified torque in two or more steps in numerical order as shown in the figure.

1st step: 7.4 Nm (0.75 kg-m, 5 ft-lb)
2nd step and after: 25.5 Nm (2.6 kg-m, 19 ft-lb)

CAMSHAFT BRACKET BOLTS
a. Tighten No. 7 to 10 in numerical order as shown.
Torque: 1.96 Nm (0.20 kg-m, 1 ft-lb)
b. Tighten No. 1 to 6 in numerical order as shown.
Torque: 1.96 Nm (0.20 kg-m, 1 ft-lb)





c. Tighten No. 1 to 10 in numerical order as shown.
Torque: 5.88 Nm (0.60 kg-m, 4 ft-lb)
d. Tighten No. 1 to 10 in numerical order as shown.
Torque: 10.4 Nm (1.1 kg-m, 8 ft-lb)

EXHAUST MANIFOLD NUTS




- Install exhaust manifold and tighten mounting nuts in numerical order as shown in the figure.

NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7 and 8 shows second step.

Tighten to 30.5 N-m (3.1 kg-m, 22 ft-lb)

CAMSHAFT SPROCKET (EXH)
Tighten bolt to 103 N-m (11 kg-m, 76 ft-lb)

CAMSHAFT SPROCKET (INT)
Tighten bolt to 103 N-m (11 kg-m, 76 ft-lb)