MECHANICAL(H4SO) > Cylinder Head
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)
5. Install the A/C compressor bracket on cylinder head.
Tightening torque:
36 N·m (3.7 kgf-m, 26.6 ft-lb)
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