Shock NISSAN TEANA 2003 Workshop Manual

EM-154
[VQ]
SPARK PLUG (PLATINUM-TIPPED TYPE)

CAUTION:

Do not drop or shock spark plug.

Do not use wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Installation is the reverse order of removal.Cleaner air pressure:
Less than 588 kPa (5.88 bar, 6 kg/cm
2 , 85 psi)
Cleaning time:
Less than 20 seconds
SMA773C
SMA806CA

EM-178
[VQ]
TIMING CHAIN

b. Remove camshaft sprockets (INT and EXH) mounting bolts.

Secure the hexagonal portion of camshaft using wrench to
loosen mounting bolts.
CAUTION:
Do not loosen mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.
c. Remove timing chain (secondary) together with camshaft sprockets.

Turn camshaft slightly to secure slackness of timing chain on timing chain tensioner (secondary) side.

Insert 0.5 mm (0.020 in)-thick metal or resin plate between
timing chain and timing chain tensioner plunger (guide).
Remove timing chain (secondary) together with camshaft
sprockets with timing chain loose from guide groove.
CAUTION:
Be careful of plunger coming-off when removing timing
chain (secondary). This is because plunger of timing
chain tensioner (secondary) moves during operation,
leading to coming-off of fixed stopper pin.
NOTE:
Camshaft sprocket (INT) is two-for-one structure of sprockets
for timing chain (primary) and for timing chain (secondary).

When handling camshaft sprocket (INT), be careful of the fol-
lowing caution:
CAUTION:

Handle carefully to avoid any shock to camshaft
sprocket.

Do not disassemble. (Do not loosen bolts “A” as
shown in the figure).
22. Remove water pump. Refer to CO-46, "
WATER PUMP" .
23. Remove rear timing chain case as follows:
a. Loosen and remove mounting bolts in the reverse order as
shown in the figure.
b . C u t l i q u i d g a s k e t u s i n g s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ] a n d
remove rear timing chain case.
KBIA1698J
PBIC1978E
PBIC2980E
SEM735G

CAMSHAFT
EM-193
[VQ]
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2. Install engine sub-attachment with engine stand shaft [SST: KV10117001 and KV10106500] to right side
of cylinder block, then lift engine, and mount it onto engine stand [SST: ST0501S000]. Refer to EM-228,
"CYLINDER BLOCK" .
3. Remove front timing chain case, camshaft sprocket, timing chain and rear timing chain case. Refer to EM-
173, "TIMING CHAIN" .
4. Remove camshaft position sensors (PHASE) (right and left
banks) from cylinder head back side.
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at
sensor tip.

Do not place sensors in a location where they are
exposed to magnetism.
5. Remove intake valve timing control solenoid valves.

Discard intake valve timing control solenoid valve gaskets and
use new gaskets for installation.
6. Remove camshaft brackets.

Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction for
installation.

Equally loosen camshaft bracket bolts in several steps in the
reverse order as shown in the figure.
7. Remove camshafts.
8. Remove valve lifters.
KBIA1046E
SEM443GA
PBIC2050E

ENGINE ASSEMBLY
EM-225
[VQ]
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Vehicle Underbody
1. Remove front drive shafts (right and left sides). Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove front exhaust tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to PS-17, "
POWER STEERING GEAR AND LINKAGE" .
4. Disconnect front stabilizer connecting rod. Refer to FSU-16, "
STABILIZER BAR" .
5. Disconnect power steering piping at a point between vehicle and engine. Refer to PS-39, "
HYDRAULIC
LINE" .

Install plug to avoid leakage of power steering fluid.
6. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
Removal Work
1. Install engine slingers into front of cylinder head (right bank) and
rear of cylinder head (left bank).
2. Lift with hoist and secure engine in position.
3. Use manual lift table caddy (commercial service tool) or equiva-
lently rigid tool such as transmission jack. Securely support bot-
tom of front suspension member, and simultaneously adjust
hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
4. Separate engine mounting insulator (RH) and engine mounting bracket (RH).
5. Remove engine mounting (LH) through-bolt. (VQ23DE)
PBIC2483E
PBIC2484E

EM-230
[VQ]
CYLINDER BLOCK


A widely use engine stand can be used.
CAUTION:
Use engine stand that has a load capacity [approximately
220 kg (441 lb) or more] large enough for supporting the
engine weight.
NOTE:
This example is engine stand for holding at transaxle mount-
ing side with drive plate removed.
5. Drain engine oil. Refer to LU-21, "
Changing Engine Oil" .
6. Drain engine coolant by removing water drain plugs from cylin-
der block both sides at “A” and “D” and cylinder block front side
at “B” as shown in the figure.
NOTE:
Water drain plug at the right bank side for VQ35DE is also used
as a connector of water pipe for oil cooler. Refer to LU-23, "
OIL
COOLER (VQ35DE)" .
7. Remove drive plate. Fix crankshaft pulley with pulley holder [SST: KV10109300], and remove mounting
bolts.

Loosen mounting bolts in diagonal order.
CAUTION:

Do not disassemble drive plate.

Do not place drive plate with signal plate facing down.

When handling signal plate, take care not to damage or
scratch it.

Handle signal plate in a manner that prevents it from
becoming magnetized.
8. Remove cylinder head. Refer to EM-210, "
CYLINDER HEAD" .
9. Remove knock sensor.
CAUTION:
Carefully handle sensor avoiding shocks.
PBIC0085E
PBIC2487E
SEM760G

GI-32
SERVICE INFORMATION FOR ELECTRICAL INCIDENT


Do not apply excessive shock to the control unit by dropping or
hitting it.

Be careful to prevent condensation in the control unit due to
rapid temperature changes and do not let water or rain get on it.
If water is found in the control unit, dry it fully and then install it in
the vehicle.

Be careful not to let oil to get on the control unit connector.

Avoid cleaning the control unit with volatile oil.

Do not disassemble the control unit, and do not remove the
upper and lower covers.

When using a DMM, be careful not to let test probes get close to
each other to prevent the power transistor in the control unit
from damaging battery voltage because of short circuiting.

When checking input and output signals of the control unit, use
the specified check adapter.
SAIA0255E
SEF348N

MA-22
ENGINE MAINTENANCE (QR20DE)

2. Using oil filter wrench [SST], remove oil filter.
CAUTION:

Oil filter is provided with relief valve. Use Genuine Nissan
Oil Filter or equivalent.

Be careful not to get burned when engine and engine oil
may be hot.

When removing, prepare a shop cloth to absorb any
engine oil leakage or spillage.

Do not allow engine oil to adhere to drive belt.

Completely wipe off any engine oil that adheres to engine
and vehicle.
INSTALLATION
1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply new engine oil to the oil seal contact surface of new oil fil-
ter.
3. Screw oil filter manually until it touches the installation surface,
then tighten it by 2/3 turn. Or tighten to specification.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to MA-20, "Changing Engine Oil" .
2. Start engine, and make sure there is no leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil. Refer to MA-20, "
Changing Engine Oil" .
Checking and Changing Spark PlugsBLS00098
REMOVAL
1. Remove ignition coil. Refer to EM-31, "IGNITION COIL" .
2. Remove spark plug with spark plug wrench (commercial service
tool).
CAUTION:
Do not drop or shock it.
KBIA0303E
SMA010
Oil filter:
: 17.6 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
SEM294A

ENGINE MAINTENANCE (QR20DE)
MA-23
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INSPECTION AFTER REMOVAL
Use standard type spark plug for normal condition.
Hot type spark plug is suitable when fouling occurs with standard type spark plug under conditions such as:

Frequent engine starts

Low ambient temperatures
Cold type spark plug is suitable when spark plug knock occurs with standard type spark plug under conditions
such as:

Extended highway driving

Frequent high engine revolution
CAUTION:

Do not drop or shock spark plug.

Do not use wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Installation is the reverse order of removal.
Checking EVAP Vapor LinesBLS0009A
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.
Refer to EC-27, "
EVAPORATIVE EMISSION SYSTEM" .
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (Nominal) : 1.1 mm (0.043 in)
Cleaner air pressure:
Less than 588 kPa (5.88 bar, 6 kg/cm
2 , 85 psi)
Cleaning time:
Less than 20 seconds
SMA773C
SMA806CA
Spark plug:
: 24.5 N·m (2.5 kg-m, 18 ft-lb)

MA-32
ENGINE MAINTENANCE (VQ23DE AND VQ35DE)

2. Apply engine oil to the oil seal contact surface of new oil filter.
3. Screw oil filter manually until it touches the installation surface,
then tighten it by 2/3 turn. Or tighten to specification.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to MA-30, "Changing Engine Oil" .
2. Start engine, and check there is no leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil. Refer to MA-30, "
Changing Engine Oil" .
Changing Spark Plug (Platinum-Tipped Type)BLS0005R
REMOVAL
1. Remove engine cover. Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
2. Remove ignition coil. Refer to EM-152, "
IGNITION COIL" .
3. Remove spark plug using spark plug wrench (commercial ser-
vice tool).
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL
Use standard type spark plug for normal condition.
Hot type spark plug is suitable when fouling occurs with standard type spark plug under conditions such as:

Frequent engine starts

Low ambient temperatures
Cold type spark plug is suitable when spark plug knock occurs with standard type spark plug under conditions
such as:

Extended highway driving

Frequent high engine revolution
SMA010
Oil filter:
: 17.6 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
SEM294A

ENGINE MAINTENANCE (VQ23DE AND VQ35DE)
MA-33
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CAUTION:

Do not drop or shock spark plug.

Do not use wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Install in the reverse order of removal.
Checking Positive Crankcase Ventilation SystemBLS0009B
PCV (POSITIVE CRANKCASE VENTILATION) VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (Nominal) : 1.1 mm (0.043 in)
Cleaner air pressure:
Less than 588 kPa (5.88 bar, 6 kg/cm
2 , 85 psi)
Cleaning time:
Less than 20 seconds
SMA773C
SMA806CA
: 24.5 N·m (2.5 kg-m, 18 ft-lb)
PBIB1589E