Cylinder Head Assembly

SERVICE DATA AND SPECIFICATIONS (SDS)


Cylinder Head


CYLINDER HEAD






VALVE DIMENSIONS






VALVE GUIDE






VALVE SEAT






VALVE SPRING








Cylinder Head Torque & Sequence





Arrow Indicates Engine Front

Install cylinder head, and tighten cylinder head bolts in numerical order as shown in the figure with the following procedure.

CAUTION:
If cylinder head bolts are reused, check their outer diameters before installation.

a. Apply new engine oil to threads and seating surface of mounting bolts.

b. Tighten all cylinder head bolts.

Torque : 40.0 N.m (4.1 kg-m, 30 ft-lb)

c. Turn all cylinder head bolts 100 degrees clockwise (angle tightening).

CAUTION:

Check and confirm the tightening angle by using an angle wrench [SST: KV10112100 (BT8653-A)] (A) or protractor. Never judge by visual inspection without the tool.

d. Completely loosen.

Torque : 0 N.m (0 kg-m, 0 ft-lb)

CAUTION:
In this step, loosen cylinder head bolts in reverse order that indicated in the figure.

e. Tighten all cylinder head bolts.

Torque : 40.0 N.m (4.1 kg-m, 30 ft-lb)

f. Turn all cylinder head bolts 100 degrees clockwise (angle tightening).

g. Turn all cylinder head bolts 100 degrees clockwise again (angle tightening).



Re-usability

Cylinder Head Bolts Outer Diameter





- Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between (d1) and (d2) exceeds the limit, replace them with a new one.

Limit [(d1) - (d2)]: 0.15 mm (0.0059 in)

- If reduction of outer diameter appears in a position other than (d2), use it as (d2) point.



Camshaft Bearing Cap Torque & Sequence





Arrow Indicates Engine front

Tighten mounting bolts of camshaft brackets in the following steps, in numerical order as shown in the figure.

- There are two types of mounting bolts. Refer to the following for locating bolts.






i. Tighten mounting bolts in numerical order.

Torque : 1.96 N.m (0.20 kg-m, 17 in-lb)

ii. Tighten mounting bolts in numerical order.

Torque : 5.88 N.m (0.60 kg-m, 52 in-lb)

iii. Tighten mounting bolts in numerical order.

Torque : 9.5 N.m (0.97 kg-m, 84 in-lb)



Intake Manifold Torque & Sequence

Specifications



Exhaust Manifold Torque & Sequence

Torque and Sequence



Camshaft Gear/Sprocket Torque

Specifications