System Specifications

Cylinder Head





Using several steps, uniformly install and tighten the 10 cylinder head set bolts and plate washers with a 10 mm bi-hexagon wrench in the order shown in the illustration.
Torque 70 Nm (714 kgf-cm, 52 ft. lbs.)





Mark the front side of the cylinder head bolt with paint.
Retighten the cylinder head bolts 90° in the sequence shown in the illustration.
Check that the paint mark is now at a 90° angle to the front.

Maximum warpage
Cylinder block side 0.05 mm (0.0020 inch)
Intake manifold side 0.08 mm (0.0031 inch)
Exhaust manifold side 0.08 mm (0.0031 inch)

Head Bolt reuse/replace





CYLINDER HEAD SET BOLT
Standard bolt length 141.3 to 142.7 mm (5.563 to 5.618 inch)
Maximum bolt length 144.2 mm (5.677 inch)
If the bolt length is greater than the maximum, replace the cylinder head set bolt.





INSPECT CYLINDER HEAD FOR FLATNESS
Using a precision straight edge and a feeler gauge, measure the surface contacting the cylinder block and the manifolds for warpage.

Maximum Warpage:

If the warpage is greater than the maximum, replace the cylinder head.

Intake Manifold
Torque 30 Nm (306 kgf-cm, 22 ft. lbs.)

Camshaft Bearing Cap
CAMSHAFT





Using several steps, uniformly tighten the 10 bearing cap bolts in the sequence shown in the illustration.
Torque:
No. 1 bearing cap 30 Nm (301 kgf-cm, 22 ft. lbs.)
No. 3 bearing cap 9.0 Nm (92 kgf-cm, 80 inch lbs.)

NO. 2 CAMSHAFT





Using several steps, uniformly tighten the 10 bearing cap bolts in the sequence shown in the illustration.
Torque:
No. 2 bearing cap 30 Nm (301 kgf-cm, 22 inch lbs.)
No. 3 bearing cap 9.0 Nm (92 kgf-cm, 80 ft. lbs.)

Camshaft Gear/Sprocket
Torque 54 Nm (551 kgf-cm, 40 ft. lbs.)

Exhaust Manifold





EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY
Install a new gasket and the exhaust manifold converter with the 5 nuts. Uniformly tighten the 5 nuts in the sequence shown in the illustration.
Torque 37 Nm (378 kgf-cm, 27 ft. lbs.)