2003 NISSAN TEANA Torque

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-25
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Tighten nuts in numerical order as shown in the figure.
NOTE:
No. 6 and 7 mean double tightening of bolts No. 1 and 3.
Heated Oxygen Sensor

Install heated oxygen sensors in the original position.

Install referring the following if the installation positions cannot
be identified.
CAUTION:

Before installing a new heated oxygen sensor, clean exhaust system threads using heated oxygen
sensor thread cleaner (commercial service tool) and apply anti-seize lubricant (commercial ser-
vice tool).

Do not exceed the specified torque heated oxygen sensor. Doing so may cause damage to heated
oxygen sensor, resulting in the “MIL” coming on.
KBIA0045E
Glass tube color
Heated oxygen sensor 1 : Black
Heated oxygen sensor 2 : White
PBIC2652E

EM-44
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CAMSHAFT

INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour-
nal of camshaft.
CAUTION:
Do not support journal No. 1 (on the side of camshaft
sprocket) because it has a different diameter from the other
four locations.
2. Set dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the
camshaft runout on dial indicator. (Total indicator reading)
4. If out of the standard, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with micrometer.
2. If wear is beyond the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER

Measure the outer diameter of camshaft journal with microme-
ter.
CAMSHAFT BRACKET INNER DIAMETER

Tighten camshaft bracket bolts with specified torque. Refer to EM-47, "INSTALLATION" for the tightening
procedure.

Measure the inner diameter “A” of camshaft bracket with bore
gauge.Standard: Less than 0.02 mm (0.0008 in)
PBIC2499E
Standard:
Intake : 45.015 - 45.205 mm (1.7722 - 1.7797 in)
Exhaust : 42.825 - 43.015 mm (1.6860 - 1.6935 in)
Cam wear limit
: 0.2 mm (0.008 in)
PBIC0039E
Standard:
No. 1 : 27.935 - 27.955 mm (1.0998 - 1.1006 in)
No. 2, 3, 4, 5 : 23.435 - 23.455 mm (0.9226 - 0.9234 in)
PBIC0040E
Standard:
No. 1 : 28.000 - 28.021 mm (1.1024 - 1.1032 in)
No. 2, 3, 4, 5 : 23.500 - 23.521 mm (0.9252 - 0.9260 in)
PBIC1645E

EM-60
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TIMING CHAIN

b. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] to front cover as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
NOTE:
Application instruction differs depending on the position.
c. Make sure that mating marks of timing chain and each sprocket are still aligned. Then install front cover.

When installing, align flat faces at oil pump drive spacer and oil pump inner rotor.
CAUTION:

Do not let A/C and power steering pipings interfere with upper part of front cover.

Be careful not to damage front oil seal by interference with front end of crankshaft.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.

Refer to the following for locating M6 bolts.

At the same time, install RH engine mounting bracket. (Bolt
positions 1 to 4 in the figure)
e. After all bolts are tightened, retighten them to specified torque in
numerical order as shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking to
surface for fitting oil pan (upper).
8. Install chain guide between camshaft sprockets.
9. Install intake valve timing control cover with the following procedure:
a. Install oil rings to the camshaft sprocket (INT) insertion points on backside of intake valve timing control
cover.
b. Install O-ring to front cover.Detail of A : Cross over the start of the applica-
tion and the end.
Detail of B : Apply liquid gasket outside of bolt
holes. (For all bolt holes other than
B, apply to the inside.)
Detail of C : Between here only, apply 4.5 - 5.5
mm (0.177 - 0.217 in) dia.
SBIA0267E
Bolt length: Bolt position
45 mm (1.77 in) : 5, 14, 17
20 mm (0.79 in) : Except the above (Except 1 to 4)
KBIA0083E

EM-78
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ENGINE ASSEMBLY

REMOVAL
Outline
Remove engine and transaxle assembly with front suspension member from vehicle downward. Separate
front suspension member, and then separate engine and transaxle.
Preparation
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
3. Remove the following parts.

Hood assembly; Refer to BL-13, "HOOD" .

Undercover and splash guards (RH and LH)

Front road wheels and tires

Battery, battery tray and battery tray bracket; Refer to SC-4, "BATTERY" .

Drive belt; Refer to EM-14, "DRIVE BELTS" .

Air duct (inlet); Refer to EM-17, "AIR CLEANER AND AIR DUCT" .

Air cleaner case (upper) with mass air flow sensor and air duct assembly; Refer to EM-17, "AIR
CLEANER AND AIR DUCT" .

Alternator and alternator bracket; Refer to SC-27, "CHARGING SYSTEM" .

Radiator and radiator cooling fan assembly, reservoir tank of radiator and system hoses; Refer to CO-
13, "RADIATOR" .
4. Disconnect engine room harness connector from ECM side and set it aside for easier work.
5. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to CO-24,
"THERMOSTAT AND WATER CONTROL VALVE" .
2. Disconnect fuel feed hose, and plug it to prevent fuel from draining. Refer to EM-34, "
FUEL INJECTOR
AND FUEL TUBE" .
3. Disconnect control cable from transaxle. Refer to AT- 2 1 3 , "
SHIFT CONTROL SYSTEM" .
4. Disconnect B terminal harness of starter motor. Refer to SC-14, "
STARTING SYSTEM" .
Engine Room RH
1. Remove IPDM E/R and bracket. Refer to PG-17, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM)" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on vehicle side with a
rope to avoid putting load on it. Refer to ATC-134, "
Removal and Installation of Compressor" .
3. Remove reservoir tank of power steering oil pump. Temporarily secure it on engine side with a rope. Refer
to PS-39, "
HYDRAULIC LINE" .
Vehicle Underbody
1. Remove RH and LH front drive shafts. Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to EM-26, "
OIL PAN AND OIL STRAINER" and AT- 2 4 1 , "TRANSAXLE ASSEMBLY" .
4. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT- 2 4 1 , "
TRAN-
SAXLE ASSEMBLY" .
5. Disconnect connecting rod for front stabilizer. Refer to FSU-5, "
FRONT SUSPENSION ASSEMBLY" .
6. Remove steering lower joint from steering gear. Refer to PS-12, "
STEERING COLUMN" .
7. Remove power steering fluid piping from front suspension member. Refer to PS-39, "
HYDRAULIC LINE"
.
8. Disconnect power steering fluid piping at a point between vehicle and engine, and install plug it to prevent
power steering fluid. Refer to PS-39, "
HYDRAULIC LINE" .

EM-86
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CYLINDER BLOCK

CAUTION:

Be careful not damage or deform signal plate mounted on
crankshaft.

When setting crankshaft on a flat floor surface, use a
block of wood to avoid interference between signal plate
and the floor surface.

Do not remove signal plate unless it is necessary to do
so.
NOTE:
When removing or installing signal plate, use TORX socket (size
T30).
17. Pull rear oil seal out from rear end of crankshaft.
CAUTION:
Be careful not to damage crankshaft.
NOTE:
When replacing rear oil seal without removing lower cylinder block, use screwdriver to pull it out from
between crankshaft and cylinder block.
18. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.
CAUTION:
Identify installation positions, and store them without mixing them up.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
CAUTION:
Use a goggles to protect your eye.
2. Install each plug to cylinder block as shown in the figure.

Apply liquid gasket to the thread of water drain plug “A”.
Use Genuine Liquid Gasket or equivalent.

Apply liquid gasket to the thread of plug “C”.
Use Anaerobic Liquid Gasket or equivalent.

Tighten each plug as specified below.
NOTE:
Do not apply liquid gasket to the thread of plug “B”.
3. Install main bearings and thrust bearings with the following procedure:
a. Remove dust, dirt, and engine oil on the bearing mating surfaces of cylinder block and lower cylinder
block.
b. Install thrust bearings to the both sides of the No. 3 journal hous-
ing on cylinder block.

Install thrust bearings with the oil groove facing crankshaft
arm (outside).
SBIA0275E
Part Washer Tightening torque
A No 9.8 N·m (1.0 kg-m, 87 in-lb)
B Yes 53.9 N·m (5.5 kg-m, 40 ft-lb)
C Yes 62.8 N·m (6.4 kg-m, 46 ft-lb)
PBIC2626E
PBIC0264E

CYLINDER BLOCK
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CONNECTING ROD BEND AND TORSION

Check with connecting rod aligner.

If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END DIAMETER

Install connecting rod cap without connecting rod bearing installed, and tightening connecting rod bolts to
the specified torque. Refer to EM-86, "
ASSEMBLY" for the tightening procedure.

Measure the inner diameter of connecting rod big end with
inside micrometer.

If out of the standard, replace connecting rod assembly.
CONNECTING ROD BUSHING OIL CLEARANCE
Connecting Rod Bushing Inner Diameter
Measure the inner diameter of connecting rod bushing with inside
micrometer.bend:
Limit: 0.15 mm (0.0059 in) per 100 mm (3.94 in) length
To r s i o n :
Limit: 0.30 mm (0.012 in) per 100 mm (3.94 in) length
PBIC2077E
Standard: 48.000 - 48.013 mm (1.8898 - 1.8903 in)
PBIC1641E
Standard: 20.000 - 20.012 mm (0.7874 - 0.7879 in)
PBIC0120E

CYLINDER BLOCK
EM-103
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Measure the distortion on the cylinder block upper face at some
different points in six directions with straight edge and feeler
gauge.

If it exceeds the limit, replace cylinder block and lower cylinder
block assembly.
NOTE:
Cylinder block cannot be replaced as a single, because it is
machined together with lower cylinder block.
MAIN BEARING HOUSING INNER DIAMETER

Install lower cylinder block without main bearings installed, and
tighten lower cylinder mounting bolts to the specified torque.
Refer to EM-86, "
ASSEMBLY" for the tightening procedure.

Measure the inner diameter of main bearing housing with bore
gauge.

If out of the standard, replace cylinder block and lower cylinder
block assembly.
NOTE:
Cylinder block cannot be replaced as a single, because it is
machined together with lower cylinder block.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter

Using bore gauge, measure the cylinder bore for wear, out-of-
round and taper at six different points on each cylinder. (“X” and
“Y” directions at “A”, “B” and “C”) (“Y” is in longitudinal direction
of engine)
NOTE:
When determining cylinder bore grade, measure the cylinder
bore at “B” position.

If the measured value exceeds the limit, or if there are scratches and/or seizure on the cylinder inner wall,
hone or re-bore the cylinder inner wall.

Oversize piston is provided. When using oversize piston, re-bore the cylinder so that the clearance of the
piston to cylinder bore satisfies the standard.
CAUTION:
When using an oversize piston, use oversize pistons for all cylinders with oversize piston rings.Limit: 0.1 mm (0.004 in)
PBIC0121E
Standard: 58.944 - 58.968 mm (2.3206 - 2.3216 in)
PBIC2012E
Standard inner diameter
: 89.010 - 89.030 mm (3.5043 - 3.5051 in)
Wear limit
: 0.2 mm (0.008 in)
Out-of-round (Difference between “X” and “Y”)
: 0.015 mm (0.0006 in)
Taper limit (Difference between “A” and “C”)
: 0.01 mm (0.0004 in)
Oversize (OS): 0.2 mm (0.008 in)
SBIA0284E

EM-104
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CYLINDER BLOCK

Piston Skirt Diameter
Measure the outer diameter of piston skirt with micrometer.
Piston to Cylinder Bore Clearance
Calculate by piston skirt diameter and cylinder bore inner diameter (direction “X”, position “B”).
(Clearance) = (Cylinder bore inner diameter) – (Piston skirt diameter)

If it exceeds the limit, replace piston and piston pin assembly. Refer to EM-92, "HOW TO SELECT PIS-
TON" .
Re-boring Cylinder Bore
1. Cylinder bore size is determined by adding piston to cylinder bore clearance to piston skirt diameter.
2. Install lower cylinder block, and tighten mounting bolts to the specified torque. Otherwise, cylinder bores
may be distorted in final assembly. Refer to EM-86, "
ASSEMBLY" for the tightening procedure.
3. Cut cylinder bores.
NOTE:

When any cylinder needs boring, all other cylinders must also be bored.

Do not cut too much out of cylinder bore at a time. Cut only 0.05 mm (0.0020 in) or so in diameter at a
time.
4. Hone cylinders to obtain specified piston to cylinder bore clearance.
5. Measure the finished cylinder bore for out-of-round and taper.
NOTE:
Measurement should be done after cylinder bore cools down.
CRANKSHAFT MAIN JOURNAL DIAMETER

Measure the outer diameter of crankshaft main journals with
micrometer.

If out of the standard, measure the main bearing oil clearance.
Then use undersize bearing. Refer to EM-106, "
MAIN BEARING
OIL CLEARANCE" . Measure point
: Distance from the top 42.0 mm (1.654 in)
Standard
: 88.990 - 89.010 mm (3.5035 - 3.5043 in)
PBIC0125E
Standard : 0.01 - 0.03 mm (0.0004 - 0.0012 in)
Limit : 0.08 mm (0.0031 in)
Re-bored size calculation: D = A + B – C
where,
D: Bored diameter
A: Piston skirt diameter as measured
B: Piston to cylinder bore clearance (standard value)
C: Honing allowance 0.02 mm (0.0008 in)
Standard: 54.955 - 54.979 mm (2.1636 - 2.1645 in) dia.
PBIC0270E