Tightening Specifications

Tighten cylinder head bolts.
Lubricate threads and seat surfaces of the bolts with new engine oil.
Tightening procedure
a. Tighten bolts to 29 Nm (3.0 kg-m, 22 ft. lbs.).
b. Tighten bolts to 93 Nm (9.5 kg-m, 69 ft. lbs.).
c. Loosen bolts completely.
d. Tighten bolts to 25 to 34 Nm (2.5 to 3.5 kg-m, 18 to 25 ft. lbs.).
e. Turn bolts 90 to 95° clockwise.






Install the washer with non-chamfered side facing the cylinder head.






Install and tighten cylinder head sub-bolts to 6.3 - 8.3 Nm (0.64 - 0.85 kg-m, 55.6 - 73.8 inch lbs.)

The bolts indicated by arrow marks in the image have different dimensions [t = 35 mm (1.38 inch)] than the other bolts [t = 23 mm (0.91 inch)]. Make sure bolt length and location correspond.