Component Tightening Specifications and Sequences

Cylinder Head
CYLINDER HEAD LH
Install the 8 cylinder head bolts.

HINT:
The cylinder head bolts are tightened in 2 successive steps (Procedures "A" and "B").
If any cylinder head bolt is broken or deformed, replace it.

Using several steps, tighten each bolt uniformly with a 10 mm bi-hexagon wrench in the sequence as shown in the illustration (Procedure "A").
Torque 36 Nm (367 kgf/cm, 27 ft. lbs.)
If any one of the cylinder head bolts does not meet the torque specification, replace the cylinder head bolt.

Mark the front side of each cylinder head bolt with paint.
Retighten the cylinder head bolts 180° as shown (Procedure "B").
Check that the painted marks are now at 180° opposite to the engine front.

Install the 2 cylinder head bolts.
Using several steps, install and tighten the 2 cylinder head bolts uniformly in the sequence as shown in the illustration.
Torque 30 Nm (306 kgf/cm, 22 ft. lbs.)

CYLINDER HEAD SUB-ASSEMBLY
Install the 8 cylinder head bolts.

HINT:
The cylinder head bolts are tightened in 2 successive steps (Procedures "A" and "B").
If any cylinder head bolt is broken or deformed, replace it.

CYLINDER HEAD SET BOLT
Using vernier calipers, measure the outside thread diameter of the bolt.
Standard outside diameter 10.85 to 11.00 mm (0.4272 to 0.4331 in.)
Minimum outside diameter 10.7 mm (0.421 in.)

Inspect warpage.
Using a precision straight edge and feeler gauge, measure the warpage of the contact surfaces of the cylinder block and manifolds.
Maximum warpage 0.10 mm (0.0039 in.)
If warpage is greater than the maximum, replace the cylinder head.

Inspect cranks.
Using a dye penetrant, check the combustion chamber, intake ports, exhaust ports and cylinder block surface for cracks.
If cracked, replace the cylinder head.

Intake Manifold
Install and tighten the 10 bolts uniformly in several steps.
Torque 26 Nm (265 kgf/cm, 19 ft. lbs.)

Camshaft Bearing Cap
CAMSHAFTS (for Bank 2)

Place the 2 camshafts onto the cylinder head with the cam lobes of No. 2 cylinder facing each correct direction as shown in the illustration.

Install the 8 bearing caps in their proper locations.
Apply a light coat of engine oil to the threads and under the heads of the bearing cap bolts.

Using several steps, install and tighten the 16 bearing cap bolts uniformly in the sequence as shown in the illustration.
Torque:
For 10 mm (0.39 in.) head 9.0 Nm (92 kgf/cm, 80 in. lbs.)
For 12 mm (0.47 in.) head 24 Nm (245 kgf/cm, 18 ft. lbs.)

CAMSHAFTS (for Bank 1)

Place the 2 camshafts onto the cylinder head with the cam lobes of No. 1 cylinder facing each direction as shown in the illustration.

Install the 8 bearing caps in their proper locations.
Apply a light coat of engine oil to the threads and under the heads of the bearing cap bolts.

Turn the camshafts clockwise until the knock pin comes to 90° position to the cylinder head.

Main Bearing Cap

Examine the front marks and numbers and install the bearing caps on the cylinder block.
Apply a light coat of engine oil to the threads of the bearing cap bolts.
Temporarily install the 8 main bearing cap bolts to the inside positions.

Install the main bearing caps. Tighten the 2 bolts for each bearing cap until the clearance between the bearing cap and the cylinder block becomes less than 6 mm (0.23 in.).

Using a plastic-faced hammer, lightly tap the bearing cap to ensure a proper fit.
Apply a light coat of engine oil to the threads of the main bearing cap bolts.

Install the 16 main bearing cap bolts. Using several steps, tighten the bolts uniformly in the sequence as shown in the illustration.
Torque 61 Nm (622 kgf/cm, 45 ft. lbs.)

Mark the front side of the bearing cap bolts with paint.
Retighten the bearing cap bolts 90° in the sequence as shown.
Check that the painted mark is now at a 90° angle to the front.
Check that the crankshaft turns smoothly.

Using several steps, tighten the 8 main bearing cap bolts uniformly in the sequence as shown in the illustration.
Torque 26 Nm (262 kgf/cm, 19 ft. lbs.)

Rod Bearing Cap

Tighten the bolts alternately with the specified torque.
Torque 25 Nm (250 kgf/cm, 18 ft. lbs.)

Mark the front side of each connecting cap bolt with paint.
Retighten the cap bolts 90° as shown.
Check that the crankshaft turns smoothly.

Crankshaft Pulley
Torque 250 Nm (2,549 kgf/cm, 184 ft. lbs.)

Flywheel/Flex Plate

Using several steps, install and tighten the 8 mounting bolts uniformly in the sequence as shown in the illustration.
Torque 83 Nm (846 kgf/cm, 61 ft. lbs.)

Oil Pump

Torque:
For 10 mm (0.39 in.) head 9.0 Nm (92 kgf/cm, 80 in. lbs.)
For 12 mm (0.47 in.) head 23 Nm (235 kgf/cm, 17 ft. lbs.)

Exhaust Manifold
Manifold stay x Exhaust manifold sub-assembly RH and transmission 40 Nm (408 kgf/cm, 30 ft. lbs.)
Manifold stay No. 2 x Exhaust manifold sub-assembly LH and transmission 40 Nm (408 kgf/cm, 30 ft. lbs.)
Exhaust pipe assembly front x Exhaust manifold 62 Nm (630 kgf/cm, 46 ft. lbs.)

Water Pump
Install a new gasket and the water pump with the 17 bolts.
Torque:
10 mm (0.39 in.) head 9.0 Nm (92 kgf/cm, 80 in. lbs.)
12 mm (0.47 in.) head 23 Nm (235 kgf/cm, 17 ft. lbs.)