Cylinder Head Assembly: Specifications
CYLINDER HEADMachining Specifications
Warping limit 0.035 mm (0.0014 inch)
Grinding limit 0.3 mm (0.012 inch)
Standard height of cylinder head 127.5 mm (5.02 inch)
Cylinder head bolts
1. Apply a coat of engine oil to the washers and bolt threads.
2. Tighten all bolts to 29 Nm (3.0 kgf-m, 21.4 ft. lbs.) in alphabetical sequence.
3. Tighten all bolts to 69 Nm (7.0 kgf-m, 50.9 ft. lbs.) in alphabetical sequence again.
4. Back off all bolts by 1800 first; back them off by 180° again in reverse order of installation.
5. Tighten all bolts to 49 Nm (5.0 kgf-m, 36 ft. lbs.) in alphabetical sequence.
6. Tighten all bolts 80 to 90° in alphabetical sequence.
7. Tighten all bolts by 40 to 45° in alphabetical sequence again.
CAUTION: Do not tighten the bolts by more than 45°.
8. Further tighten all bolts (A) and (B) by 40 to 45°.
CAUTION: Ensure that the total "re-tightening angle" in the previous two steps do not exceed 90°.
Camshaft cap
Gradually tighten the camshaft cap and oil control valve assembly in at least two stages in alphabetical sequence shown in the figure, and then tighten to specified torque.
Tightening torque:
T1 9.75 Nm (1.0 kgf-m, 7 ft. lbs.)
T2 20 Nm (2.0 kgf-m, 14.8 ft. lbs.)
Cam Sprocket
Tighten 30 Nm (3.0 kgf-m, 21.8 ft. lbs.)
then tighten 45° furthermore
Exhaust Manifold
To Clylinder Head 40 Nm (4 kgf-m, 28.9 ft. lbs.)
To Exhaust Pipe 35 Nm (3.6 kgf-m, 26 ft. lbs.)