Component Tightening Specifications and Sequences
Cylinder HeadCYLINDER HEAD SUB-ASSEMBLY
Place the 2 cylinder heads in position on the cylinder head gaskets.
Install the cylinder head bolts.
HINT:
The cylinder head bolts are tightened in 3 progressive steps (Procedures "A" and "B").
If any cylinder head bolt is broken or deformed, replace it.
Install the plate washer to the cylinder head bolt.
Install and uniformly tighten the 10 cylinder head bolts on one side of the cylinder head in several steps in the order shown in the illustration, then do the other side in the same way (Procedure "A").
Torque 40 Nm (408 kgf/cm, 30 ft. lbs.)
If any one of the cylinder head bolts does not meet the torque specification, replace the cylinder head bolt.
NOTICE: Do not drop the plate washer for the cylinder head bolt into portion A of the cylinder head. If dropped into portion A, the plate washer will pass through the cylinder head and cylinder block into the oil pan.
Mark the front of the cylinder head bolt head with paint.
Retighten the cylinder head bolts by 90° in the numerical order shown (Procedure "B").
Retighten the cylinder head bolts by an additional 90°.
Check that the painted mark is now at a 180° angle to front.
CYLINDER HEAD SET BOLT
Using vernier calipers, measure the thread outside diameter of the bolt.
Standard outside diameter 9.810 to 9.960 mm (0.3862 to 0.3921 in.)
Minimum outside diameter 9.700 mm (0.3819 in.)
Inspect for warpage.
Using a precision straight edge and feeler gauge, measure the warpage of the contact surfaces of the cylinder block and the manifolds.
Maximum warpage 0.10 mm (0.0039 in.)
If warpage is greater than the maximum, replace the cylinder head.
Inspect for cracks.
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
Intake manifold assembly x Cylinder head 18 Nm (185 kgf/cm, 13 ft. lbs.)
Camshaft Bearing Cap
RH bank
Install the front bearing cap.
HINT: The thrust position of the camshaft will be determined after installing the front bearing cap.
Install the other bearing caps in the order shown with the arrow mark facing forward.
Install new seal washers to the bearing cap bolts (A and B).
Apply a light coat of engine oil to the threads and under the heads of the bearing cap bolts (D and E).
Install the oil feed pipe and the 22 bearing cap bolts as shown in the illustration.
Uniformly tighten the 22 bearing cap bolts in several steps, in the order shown in the illustration.
Torque:
For bolt C 7.5 Nm (76 kgf/cm, 66 in. lbs.)
For others 16 Nm (163 kgf/cm, 12 ft. lbs.)
LH bank.
Apply MP grease to the thrust portion of the camshafts.
Align the timing marks (2-dot marks) of the camshaft drive and driven main gears, and place the 2 camshafts.
Install the front bearing cap.
Install the other bearing cap in the order shown with the arrow mark facing forward.
Install the oil feed pipe and the 22 bearing cap bolts as shown in the illustration.
Uniformly tighten the 22 bearing cap bolts in several steps, in the order shown in the illustration.
Torque:
For bolt C 7.5 Nm (76 kgf/cm, 66 in. lbs.)
For others 16 Nm (163 kgf/cm, 12 ft. lbs.)
Main Bearing Cap
Install the crankshaft bearing cap bolts.
HINT:
The bearing cap bolts are tightened in 2 progressive steps.
If any one of the bearing cap bolts is broken or deformed, replace it.
Apply a light coat of engine oil to the threads and under the heads of the crankshaft bearing cap bolts.
Install and uniformly tighten the 10 crankshaft bearing cap bolts in several steps, in the order shown in the illustration.
Torque 27 Nm (275 kgf/cm, 20 in. lbs.)
If any one of the bearing cap bolts does not meet the torque specification, replace the bearing cap bolt.
Mark the front of the crankshaft bearing cap bolts with paint.
Retighten the crankshaft bearing cap bolts by 90° in the order shown.
Check that the painted mark is now at a 90° angle to the front.
Check that the crankshaft turns smoothly.
Rod Bearing Cap
Install the connecting rod cap bolts.
HINT:
The connecting rod cap bolts are tightened in 2 progressive steps.
If any one of the connecting rod cap bolts is broken or deformed, replace it.
Apply a light coat of engine oil to the threads and under the heads of the connecting rod cap bolts.
Install and alternately tighten the 2 connecting rod cap bolts in several steps.
Torque 25 Nm (250 kgf/cm, 18 ft. lbs.)
If any one of the connecting rod cap bolts does not meet the torque specification, replace the connecting rod cap bolts.
Mark the front of the connecting cap bolt with paint.
Retighten the cap bolts 90° as shown in the illustration.
Check that the painted mark is now at a 90° angle to the front.
Check that the crankshaft turns smoothly.
Crankshaft Pulley
Crankshaft damper x Crankshaft 245 Nm (2,498 kgf/cm, 181 ft. lbs.)
Flywheel/Flex Plate
Drive plate & ring gear x Crankshaft
1st 49 Nm (500 kgf/cm, 36 ft. lbs.)
2nd Turn 90°
Oil Pump
Install the oil pump with a new stud bolt and the 7 bolts. Uniformly tighten the bolts diagonally.
HINT:
Use a 6 mm hexagon wrench to tighten the hexagon head bolt.
The following chart is the reference of the oil pump bolt length.
Torque:
For bolts A, B, C and E 16 Nm (160 kgf/cm, 11 ft. lbs.)
For bolt D 31 Nm (311 kgf/cm, 23 ft. lbs.)
Exhaust Manifold
EXHAUST MANIFOLD SUB-ASSEMBLY LH
Install the exhaust manifold with 8 new nuts. Uniformly tighten the nuts in diagonally.
Torque 44 Nm (450 kgf/cm, 33 ft. lbs.)
EXHAUST MANIFOLD SUB-ASSEMBLY RH
Install the exhaust manifold with 8 new nuts. Uniformly tighten the nuts diagonally.
Torque 44 Nm (450 kgf/cm, 33 ft. lbs.)
Front exhaust pipe x Exhaust manifold 62 Nm (633 kgf/cm, 46 ft. lbs.)
Water Pump
Install a new gasket and water pump with the 5 bolts, 2 stud bolts and nut. Uniformly tighten the bolts, stud bolts and nut in several steps.
Torque:
Bolt 21 Nm (214 kgf/cm, 15 ft. lbs.)
Stud bolt and nut 18 Nm (184 kgf/cm, 13 ft. lbs.)