MECHANICAL(H4DOTC) > Cylinder Head

INSTALLATION

1. Install the cylinder head to the cylinder block.

CAUTION:

Be careful not to scratch the mating surface of cylinder head and cylinder block.

NOTE:

Use a new cylinder head gasket.

(1) Clean the bolt threads and the bolt holes in the cylinder block.

CAUTION:

To avoid erroneous tightening of the bolts, clean out the bolt holes sufficiently by blowing with compressed air to eliminate engine coolant etc.

(2) Apply a sufficient coat of engine oil to the washer and bolt thread.

(3) Tighten all bolts to 40 N·m (4.1 kgf-m, 29.5 ft-lb) in alphabetical order.

(4) Retighten all bolts to 95 N·m (9.7 kgf-m, 70.1 ft-lb) in alphabetical order.

CAUTION:

If the bolt makes stick-slip sound during tightening, repeat the procedure from step (1). In this case, the cylinder head gasket can be reused.

(5) Loosen all the bolts by 180° in the reverse order of installing, and loosen them further by 180°.

(6) Tighten all bolts to 10 N·m (1.0 kgf-m, 7.4 ft-lb) in alphabetical order.

(7) Retighten all bolts to 30 N·m (3.1 kgf-m, 22.1 ft-lb) in alphabetical order.

(8) Retighten all bolts to 70 N·m (7.1 kgf-m, 51.6 ft-lb) in alphabetical order.

(9) Retighten all bolts by 80 — 90° in alphabetical order.

(10) Retighten all bolts by 40 — 45° in alphabetical order.

CAUTION:

The tightening angle of the bolt should not exceed 45°.

(11) Retighten bolts (A) and (B) by 40 — 45°.

CAUTION:

Make sure the total “tightening angle” of steps (10) and (11) does not exceed 90°.

2. Install the oil level gauge guide. (LH side only)

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

3. Install the camshaft.

4. Install the oil pipe.

NOTE:

Make sure not to mix up the union screws with filter and without filter as their installation positions are different.

Tightening torque:

T1: 8 N·m (0.8 kgf-m, 5.9 ft-lb)

T2: 29 N·m (3.0 kgf-m, 21.4 ft-lb)

(A)

Union screw with filter (with protrusion)

(B)

Union screw without filter (without protrusion)

(C)

Oil pipe

(D)

Gasket

5. Install the A/C compressor bracket on cylinder head.

Tightening torque:

36 N·m (3.7 kgf-m, 26.6 ft-lb)

6. Install the secondary air combination valve.

7. Install the cam sprocket.

8. Install the timing belt.

9. Adjust the valve clearance.

10. Install the rocker cover.

(1) Install the rocker cover gasket to the rocker cover. (Outer periphery and ignition coil section)

NOTE:

Use a new rocker cover gasket.

(2) Apply liquid gasket to the specified point of the cylinder head.

NOTE:

Install within 5 min. after applying liquid gasket.

Liquid gasket:

THREE BOND 1217G (Part No. K0877Y0100) or equivalent

(3) Install the rocker cover on cylinder head. Ensure the gasket is properly positioned during installation.

(4) Temporarily tighten the rocker cover tightening bolts in alphabetical order shown in the figure, and then tighten to specified torque in alphabetical order.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

11. Install the timing belt cover.

12. Install the crank pulley.

13. Install the intake manifold.

14. Install the V-belts.