System Specifications
Cylinder Head Torque and SequenceHINT: The cylinder head bolts are tightened in 2 successive steps.
Apply a continuous bead of seal packing (Diameter 3.5 to 4.5 mm (0.1378 to 0.1772 inch)) as shown in the illustration.
Apply a light coat of engine oil to the threads of the cylinder head bolts.
Using several steps, install and tighten the 10 cylinder head bolts and plate washers uniformly with an 8 mm bi-hexagon wrench in the sequence shown in the illustration.
Torque 29 Nm (300 kgf-cm, 22 ft. lbs.)
Mark the front of the cylinder head bolt with paint.
Retighten the cylinder head bolts by additional 90° and one more additional 90° as shown in the illustration.
Check that the paint mark is now at 180° opposite to the front.
Cylinder Head For Flatness
Using a precision straight edge and a feeler gauge, measure the surface that is in contact with the cylinder block and the manifolds for warpage.
Maximum warpage:
Cylinder block surface 0.05 mm (0.0020 inch)
Intake manifold surface 0.10 mm (0.0039 inch)
Exhaust manifold surface 0.10 mm (0.0039 inch)
Cylinder Head Set Bolt
Standard bolt length 142.8 to 144.2 mm (5.622 to 5.677 inch)
Maximum bolt length 147.1 mm (5.791 inch)
Intake Manifold
Install the intake manifold with the 3 bolts and 2 nuts. Using several steps, uniformly tighten the bolts and nuts in the sequence shown in the illustration.
Torque 30 Nm (306 kgf-cm, 22 ft. lbs.)
Camshaft Bearing Torque and Sequence
Examine the front marks and numbers and tighten the bolts in the sequence shown in the illustration.
Torque 13 Nm (129 kgf-cm, 9.4 ft. lbs.)
NOTICE: Tighten each bolt uniformly keeping the camshaft level.
Install the bearing cap No.1.
Torque 23 Nm (235 kgf-cm, 17 ft. lbs.)
Exhaust Manifold
Using several steps, install a new exhaust manifold gasket and exhaust manifold with the 3 bolts and 2 nuts in the sequence shown in the illustration.
Torque 27 Nm (275 kgf-cm, 20 ft. lbs.)
INSTALL EXHAUST MANIFOLD HEAT INSULATOR NO.1
Install the exhaust manifold heat insulator No.1 with the 4 bolts.
Torque 8.0 Nm (82 kgf-cm, 71 inch lbs.)
INSTALL MANIFOLD SUPPORT BRACKET
Install the manifold support bracket with the 3 bolts.
Torque 37 Nm (377 kgf-cm, 27 ft. lbs.)