MECHANICAL(H4SO) > 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.

Be aware that the center bolts and corner bolts are different.

Bolt type

Center bolt

Corner bolt

Silver bolt

Flat

Indent + S

Black bolt

φ7 indent

Flat

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 60 N·m (6.1 kgf-m, 44.3 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)

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

3. Install the camshaft.

4. Install the valve rocker assembly.

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 cam sprocket.

7. Install the timing belt.

8. Adjust the valve clearance.

9. Install the rocker cover.

(1) Install the rocker cover gasket to the rocker cover.

NOTE:

Use a new rocker cover gasket.

(2) Temporarily tighten the bolts in alphabetical sequence as shown in figure, then tighten the bolt in 2 steps.

Tightening torque:

1st

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

2nd (only (a) and (b) are tightened)

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

RH side

LH side

10. Install the timing belt cover.

11. Install the crank pulley.

12. Install the intake manifold.

13. Install the V-belts.