System Specifications

CYLINDER HEAD SUB-ASSEMBLY

Step 1
Install and uniformly tighten the 10 cylinder head bolts with the plate washers, in several steps, in the sequence shown.
Torque 39 Nm (398 kgf-cm, 29ft-lbf)





Step 2
Mark the cylinder head bolt head with paint as shown in the illustration.
Retighten the cylinder head bolts by 90°.

Step 3
Retighten the cylinder head bolts by an additional 90°.
Check that the painted mark is now facing rearward.

HEAD SET BOLT





SURFACE VARIATION






INTAKE MANIFOLD





Install the intake manifold with the 5 bolts and 2 nuts.
Torque 25 Nm (255 kgf-cm, 18ft-lbf)





Install the nut shown in the illustration.
Torque 10 Nm (102 kgf-cm, 7ft-lbf)

CAMSHAFT





NOTICE: Check that the valve rocker arm is correctly set as shown in the illustration.

- Apply clean engine oil to the camshaft's cam portion and the cylinder head journals.
- Install the chain onto the camshaft timing gear, with the painted mark of the link aligned with the timing mark of the camshaft timing gear.





- Set the 2 camshafts as shown in the illustration.
NOTICE: Align the paint mark with the timing mark before setting the camshaft.





- Provisionally install the No. 1 camshaft bearing cap.
- Check the proper location of each No. 2 camshaft bearing cap and install each one.





- Install a new O-ring onto the No. 1 camshaft bearing cap.
- Provisionally install the camshaft oil delivery pipe.





- Tighten the bolts in the order shown in the illustration.
Torque: 12 Nm (122 kgf-cm, 9 ft-lbf) for bolt A
Torque: 16 Nm (158 kgf-cm, 11 ft-lbf) for bolts except bolt A





- Check that each timing mark is set in the position shown in the illustration.





- Install the timing chain onto the camshaft timing gear, with the paint mark aligned with the timing mark on the camshaft timing gear.
- Align the No. 2 camshaft straight pin and camshaft timing gear straight pin hole. Then install the camshaft timing gear onto the No. 2 camshaft.

NOTICE: If the straight pin and straight pin hole are difficult to align, slightly rotate the No. 2 camshaft to the left and right using the hexagonal lobe of the camshaft. Then attempt to align them again.





- Hold the hexagonal lobe of the No. 2 camshaft with the adjustable wrench.
- Tighten the bolt.
Torque: 78 Nm (795 kgf-cm, 58 ft-lbf)

- Remove the 3.0 mm (0.118 in.) diameter bar from the chain tensioner.
- Apply adhesive to 2 or 3 threads of the timing gear case with head straight screw plug.
Adhesive: Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent





- Using a 10 mm socket hexagon wrench, install the timing gear case with head straight screw plug.
Torque: 17 Nm (170 kgf-cm, 12 ft-lbf)

CAMSHAFT TIMING SPROCKET

Torque 78 Nm (795 kgf-cm, 58ft-lbf)

EXHAUST MANIFOLD

Install a new gasket and the exhaust manifold with 8 new nuts.
Torque 36 Nm (367 kgf-cm, 27ft-lbf)