Cylinder Head

Cylinder head bolt





Tighten the cylinder head bolts in sequence to 39 Nm (4.0 kgf-m, 29 ft. lbs.). Use a beam-type torque wrench. When using a preset-type torque wrench, be sure to tighten slowly and do not overtighten. If a bolt makes any noise while you are torquing it, loosen the bolt and retighten it from the first step.





After torquing, tighten all cylinder head bolts in two steps (90° per step). If you are using a new cylinder head bolt, tighten the bolt an extra 90°.





Measure the diameter of each cylinder head bolt at point A and point B.
If either diameter is less than 10.6 mm (0.42 inch), replace the cylinder head bolt.




Cylinder head cover





Tighten the bolts in two or three steps. In the final step, tighten all bolts, in sequence, to 9.8 Nm (1.0 kgf-m, 7.2 ft. lbs.).