Cylinder Head Assembly

Cylinder Head


Cylinder head
Flatness of gasket surface Max. 0.03 mm (0.0012 inch) 0.2 mm (0.008 inch)
Flatness of manifold mounting surface 0.15 mm (0.0059 inch) 0.3 mm (0.012 inch)
Dimensions for reworking oversize
valve seat hole
Intake
0.3 mm (0.012 inch) O.S. 35.3 - 35.325 mm (1.39 - 1.3907 inch)
0.6mm (0.024 inch) O.S. 35.6 - 35.625 mm (1.40 - 1.4026 inch)
Exhaust
0.3 mm (0.012 inch) O.S. 33.3 - 33.325 mm (1.31 - 1.3120 in)
0.6 mm (0.024 inch) O.S. 33.6 -- 33.625 mm (1.32 - 1.3238 inch)
Dimensions for reworking oversize valve guide hole (both intake and exhaust)
0.05mm (0.002inch) O.S. 12.05 - 12.068 mm (0.4751 inch)
0.25mm (0.010inch) O.S. 12.25 - 12.268 mm (0.4830 inch)
0.50mm (0.020inch) O.S. 12.50 - 12.518 mm (0.4928 inch)


Intake Manifold
Install the intake manifold and new gasket to the specified torque.
Tightening torque
Bolt 15 - 20 Nm (150 -120 kg-cm, 11 - 14 ft. lbs.)
Nut 30 - 42 Nm (300 - 420 kg-cm, 22 - 30 ft. lbs.)


Camshaft Bearing Cap





Tighten the bearing caps to the specified torque in two or three increments as shown.
Tightening torque 19 - 21 Nm (190 - 210 kg-cm, 14 - 15 ft. lbs.)


Exhaust Manifold
Tightening Torque
M8 25 - 30 Nm (250 - 300 kg-cm, 18 - 22 ft. lbs.)
M10 35 - 55 Nm (350 - 550 kg-cm, 25 - 40 ft. lbs.)