Cylinder Head Tightening Procedure and Specifications

CYLINDER HEAD BOLT REMOVAL





TIGHTENING PROCEDURE AND SPECIFICATIONS
1. Wipe off all oil and grease from the gasket mounting surface.





2. Install the gasket to the cylinder block with the identification mark facing upwards.





3. Apply engine oil to the bolt thread and the washer.





NOTE: When installing the cylinder head bolts, the length below the head of the bolts should be within (A): 99.4 mm (3.91 inch). If it is outside (A): 99.4 mm (3.91 inch), replace the bolts.





4. Tighten the bolts in the order shown, using the following procedure:
a. Tighten to 78 Nm (58 ft. lbs). In the order shown in the illustration.
b. Loosen fully in the reverse order of that shown in the illustration.
c. Tighten to 20 Nm (15 ft. lbs.). In the order shown in the illustration.





d. Mark the head of the cylinder head bolt and cylinder head with paint. Tighten 90° of a turn clockwise. In the order shown in the illustration.

CAUTION:
- Always make a tightening angle just 90°.
- If it is less than 90°, the head bolt will be loosened.
- If it is more than 90°, remove the head bolt and repeat the procedure.

e. Tighten another 90° clockwise in the order shown in the illustration. Check that the painted mark of the head bolt is lined up with that of the cylinder head.


Semi-Circular Plug Sealant: 3M ATD Part No. 8660, Or Equivalent

For additional torque specs, refer to Engine Specifications.
Specifications