Tightening Procedures

CAUTION: Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between d1 and d2 exceeds the limit, replace them with new ones.
Limit (d1 - d2): 0.11 mm (0.0043 inch)

- Lubricate threads and seat surfaces of the bolts with new engine oil.

Install cylinder head outside bolts.





- Tightening procedure:
a. Tighten all bolts to 98 Nm (10 kg-m, 72 ft. lbs.).
b. Completely loosen all bolts.
c. Tighten all bolts to 34 to 44 Nm (3.5 to 4.5 kg-m, 25 to 33 ft. lbs.).
d. Turn all bolts 90 to 95 degrees clockwise.
e. Turn all bolts 90 to 95 degrees clockwise.





Right bank





Left bank

Tighten in numerical order shown in the figure.