Cylinder Head Assembly
Cylinder HeadTighten the cylinder head bolts.
(1) Apply a thin coat of engine oil to washers and cylinder head bolt threads.
(2) Mount the cylinder head onto the cylinder block, then tighten the bolts with a torque of 20 Nm (2.0 kgf-m, 14.8 ft-lb) in the order indicated in the figure.
(3) Tighten the bolts with a torque of 50 Nm (5.1 kgf-m, 36.9 ft-lb) in the order indicated in the figure.
(4) Loosen all the bolts by 180° in the reverse order of installing, and loosen them further by 180°.
(5) Tighten the bolts with torque of 20 Nm (2.0 kgf-m, 14.8 ft-lb) in numerical sequence as shown in the figure.
(6) Tighten the bolts (1) - (4) in the order indicated with a torque of 48 Nm (4.9 kgf-m, 35.4 ft-lb).
(7) Tighten the bolts (5) - (8) in the order indicated with a torque of 44 Nm (4.5 kgf-m, 32.5 ft-lb).
(8) Tighten all bolts 90° in the numerical order as shown in the figure.
(9) Tighten the bolt (1) - (4) by 45° in the numerical order.
Warping Limit 0.020 mm (0.0008 in.)
Standard Height of Cylinder Head 124 ± 0.05 mm (4.88 ± 0.0020 in)
Camshaft Cap Bolts
Gradually tighten the camshaft cap in at least two stages in the numerical order shown in the figure, then tighten to specified torque.
Tightening torque:
(1) - (12) 16 Nm (1.6 kgf-m, 11.8 ft-lb)
(13) - (17) 9.75 Nm (1.0 kgf-m, 7.2 ft-lb)
After tightening the camshaft cap, ensure the camshaft rotates only slightly while holding it at base circle.
Camshaft Gear/Sprocket Specifications