Operation CHARM: Car repair manuals for everyone.

Component Tightening Specifications and Sequences

Cylinder head
Warpage
Maximum 0.10 mm (0.039 inch)
Valve seat
Refacing angle 30°, 45°, 60°
Contacting angle 45°
Contacting width 1.0 to 1.4 mm (0.039 to 0.055 inch)
Valve guide bush bore diameter
STD 10.285 to 10.306 mm (0.4049 to 0.4057 inch)
O/S 0.05 10.335 to 10.356 mm (0.4069 to 0.4077 inch)
Cylinder head set bolt thread inside diameter
STD 9.700 to 9.960 mm (0.3819 to 0.3921 inch)
Minimum 9.70 mm (0.3819 inch)
Cylinder head LH x Cylinder block
1st 59 Nm (602 kgf-cm, 44 ft. lbs.)
2nd Turn 90°
Cylinder head RH x Cylinder block
1st 59 Nm (602 kgf-cm, 44 ft. lbs.)
2nd Turn 90°
Camshaft bearing cap x Cylinder head
Front bearing cap (w/o seal washer) 7.5 Nm (77 kgf-cm, 66 inch lbs.)
Others 16 Nm (163 kgf-cm, 12 ft. lbs.)
Cylinder head cover sub-assembly LH x Cylinder head 6.0 Nm (61 kgf-cm, 53 inch lbs.)
Cylinder head cover sub-assembly x Cylinder head 6.0 Nm (61 kgf-cm, 53 inch lbs.)





Camshaft bearing cap





Install and uniformly tighten the 10 cylinder head bolts, and plate washers in the sequence shown in the illustration.

Intake manifold assembly x Cylinder head 18 Nm (184 kgf-cm, 13 ft. lbs.)
V-bank cover x Intake manifold 5.0 Nm (51 kgf-cm, 44 inch lbs.)
Throttle body assembly x Intake manifold 18 Nm (184 kgf-cm, 13 ft. lbs.)
Exhaust manifold sub-assembly LH x Cylinder head 44 Nm (449 kgf-cm, 3 ft. lbs.)
Exhaust manifold sub-assembly RH x Cylinder head 44 Nm (449 kgf-cm, 32 ft. lbs.)
w/ Catalyst converter assembly x Exhaust manifold 62 Nm (632 kgf-cm, 46 ft. lbs.)
TWC x Exhaust manifold 62 Nm (630 kgf-cm, 46 ft. lbs.)