Cylinder Head Installation Note

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The cylinder head bolts must be replaced with new bolts. The bolts are torque-to-yield designed and cannot be reused.

Tighten the cylinder head bolts in 6 steps in the order shown in the figure.

TIGHTENING TORQUE

Step	Installation position	Tightening torque
1	1-16	20 N.m {2.0 kgf.m, 15 ft.lbf}
2	1-16	35 N.m {3.6 kgf.m, 26 ft.lbf}
3	1-16	90°
4	1-16	90°
5	1-16	90°
6	17, 18	9-11 N.m {92-112 kgf.cm, 80-97 in.lbf}

Fig 1: Identifying Cylinder Head Bolt Tightening Sequence

Courtesy of MAZDA MOTORS CORP.