Cylinder Head Assembly

CYLINDER HEAD

Tighten the cylinder head bolts in the numerical order as shown.






Check and confirm the tightening angle by using angle wrench or protractor. Do not judge angle by visual inspection.

Tool number (A): KV10112100 (BT-8653-A)






White arrow indicates : Engine front

Step a: 50 Nm (5.1 kg-m, 37 ft-lb) in order
Step b: 60� clockwise in order
Step b: Loosen to 0 Nm in order
Step c: 39.2 Nm (4.0 kg-m, 29 ft-lb) in order
Step d: 75� clockwise in order
Step e: 75� clockwise in order

Re-usability

CAUTION: If cylinder head bolts are re-used, check their outer diameters before installation. Follow the Outer Diameter of Cylinder Head Bolts measurement procedure.

Outer Diameter of Cylinder Head Bolts






Replace the cylinder heads bolts with new ones if the size difference between d1 and d2 exceeds the limit.

Limit (d1 - d2): 0.23 mm (0.0091 in) or more

If reduction of outer diameter appears in a position other than d2, use it as d2 point.

Surface Variation



CYLINDER HEAD






EXHAUST MANIFOLD








Camshaft Bearing Cap Torque & Sequence

Tighten the camshaft bracket bolts to the specified torque following the tightening pattern as shown.






(A): Intake side
(B): Exhaust side
White arrow indicates : Engine front

Step 1 (bolts 9 - 11): 1.96 Nm (0.2 kg-m, 17 in-lb)
Step 2 (bolts 1 - 8): 1.96 Nm (0.2 kg-m, 17 in-lb)
Step 3 (bolts 1 - 11): 5.88 Nm (0.6 kg-m, 52 in-lb)
Step 4 (bolts 1 - 11): 10.4 Nm (1.02 kg-m, 92 in-lb)

Tighten camshaft bracket bolts in four steps in the order as shown.






(A): Intake side
(B): Exhaust side
White arrow indicates : Engine front

Step 1 (bolts 9 - 11): 1.96 Nm (0.2 kg-m, 17 in-lb)
Step 2 (bolts 1 - 8): 1.96 Nm (0.2 kg-m, 17 in-lb)
Step 3 (bolts 1 - 11): 5.88 Nm (0.6 kg-m, 52 in-lb)
Step 4 (bolts 1 - 11): 10.41 Nm (1.1 kg-m, 8 ft-lb)

Intake Manifold [1][2]Intake Manifold

Exhaust Manifold Specifications

Camshaft Gear/Sprocket Specifications