Cylinder Head Assembly

CYLINDER HEAD SET BOLT





Measuring point:
- 94 mm (3.70 in.) for intake side bolt
- 89 mm (3.50 in.) for exhaust side bolt

Standard diameter: 10.85 to 11.00 mm (0.427 to 0.433 in.)
Minimum diameter: 10.6 mm (0.417 in.)

CYLINDER HEAD SUB-ASSEMBLY

Standard warpage:





Maximum warpage: 0.10 mm (0.00394 in.)

CYLINDER HEAD SUB-ASSEMBLY LH
Apply a light coat of engine oil to the threads and under the heads of the cylinder head bolts.





Step 1:
- Using a 10 mm bi-hexagon wrench, install and uniformly tighten the 10 cylinder head bolts with the plate washers in several steps, in the sequence shown in the illustration.
Torque: 36 Nm (367 kgf-cm, 27 ft-lbf)





Step 2:
- Mark each cylinder head bolt head with paint as shown in the illustration.
- Tighten the cylinder head bolts another 90° in the sequence shown in step 1.

Step 3:
- Tighten the cylinder head bolts an additional 90° in the sequence shown in step 1.
- Check that the painted marks are now facing rearward.





Install and uniformly tighten the 2 bolts in the sequence shown in the illustration.
Torque: 21 Nm (214 kgf-cm, 15 ft-lbf)


CYLINDER HEAD SUB-ASSEMBLY RH
Apply a light coat of engine oil to the threads and under the heads of the cylinder head bolts.





Step 1:
- Using a 10 mm bi-hexagon wrench, install and uniformly tighten the 10 cylinder head bolts with the plate washers in several steps, in the sequence shown in the illustration.
Torque: 36 Nm (367 kgf-cm, 27 ft-lbf)





Step 2:
- Mark each cylinder head bolt head with paint as shown in the illustration.
- Tighten the cylinder head bolts another 90° in the sequence shown in step 1.

Step 3:
- Tighten the cylinder head bolts an additional 90° in the sequence shown in step 1.
- Check that the painting marks are now facing rearward.





Install and uniformly tighten the 2 cylinder head bolts.
Torque: 21 Nm (214 kgf-cm, 15 ft-lbf)

CAMSHAFT HOUSING SUB-ASSEMBLY RH

NOTICE:
- Remove any oil from the contact surface.
- Install the camshaft housing within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.
- Do not start the engine for at least 2 hours after the installation.





Install the camshaft housing, and install the 18 bolts in the order shown in the illustration.
For bolt A - Torque: 10 Nm (102 kgf-cm, 7 ft-lbf)
For except bolt A - Torque: 30 Nm (306 kgf-cm, 22 ft-lbf)

NOTE: Make sure that the knock pin of the camshaft is positioned as shown in the illustration before installing the camshaft housing.





Tighten the 10 bolts in the order shown in the illustration.
Torque: 16 Nm (163 kgf-cm, 12 ft-lbf)

CAMSHAFT HOUSING SUB-ASSEMBLY LH

NOTICE:
- Remove any oil from the contact surface.
- Install the camshaft housing within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.
- Do not start the engine for at least 2 hours after the installation.





Install the camshaft housing, and install the 18 bolts in the order shown in the illustration.
For bolt A - Torque: 10 Nm (102 kgf-cm, 7 ft-lbf)
For except bolt A - Torque: 30 Nm (306 kgf-cm, 22 ft-lbf)

NOTE: Make sure that the knock pin of the camshaft is positioned as shown in the illustration before installing the camshaft housing.





Tighten the 10 bolts in the order shown in the illustration.
Torque: 16 Nm (163 kgf-cm, 12 ft-lbf)

CAMSHAFT TIMING GEAR





LH:
- Using a wrench to hold the hexagonal portion of the No. 3 camshaft, tighten the camshaft timing gear with the bolt.
Torque: 100 Nm (1020 kgf-cm, 74 ft-lbf)





- Using a wrench to hold the hexagonal portion of the No. 4 camshaft, tighten the camshaft timing exhaust gear with the bolt.
Torque: 100 Nm (1020 kgf-cm, 74 ft-lbf)





RH:
- Using a wrench to hold the hexagonal portion of the No. 1 camshaft, tighten the camshaft timing gear with the bolt.
Torque: 100 Nm (1020 kgf-cm, 74 ft-lbf)





- Using a wrench to hold the hexagonal portion of the No. 2 camshaft, tighten the camshaft timing exhaust gear with the bolt.
Torque: 100 Nm (1020 kgf-cm, 74 ft-lbf)

INTAKE MANIFOLD





Install and uniformly tighten the 8 bolts and 2 nuts in several steps.
Torque: 21 Nm (214 kgf-cm, 15 ft-lbf)


EXHAUST MANIFOLD SUB-ASSEMBLIES








Temporarily install the exhaust manifold and then uniformly tighten 8 new nuts that are not labeled A. Then tighten the new nuts labeled A in the illustration.

For nut A - Torque: 10 Nm (102 kgf-cm, 7 ft-lbf)

Except nut A - Torque: 21 Nm (214 kgf-cm, 15 ft-lbf)