2008 NISSAN TEANA engine coolant

TIMING CHAIN
EM-53
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Removal and InstallationINFOID:0000000003802270
REMOVAL
1. Drain engine oil. Refer to LU-8, "Draining".
2. Drain engine coolant from inside engine. Refer to EM-76, "
Setting".
3. Remove intake manifold collector. Refer to EM-28, "
Exploded View".
4. Remove rocker covers (bank 1 and bank 2). Refer to EM-49, "
Exploded View".
5. Remove oil pans (lower and upper) and oil strainer. Refer to EM-38, "
Exploded View".
6. Remove drive belt, idler pulleys and bracket. Refer to EM-12, "
Removal and Installation" and EM-25,
"Exploded View".
7. Separate engine harness removing their brackets from front timing chain case.
8. Remove valve timing control covers.
 Loosen mounting bolts in reverse order as shown in the figure.
CAUTION:
Shaft is internally jointed with camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.
9. Obtain No. 1 cylinder at TDC of its compression stroke as follows:
a. Rotate crankshaft pulley clockwise to align timing mark (grooved
line without color) ( ) with timing indicator.
19. Valve timing control cover (bank 1) 20.Intake valve timing control sole-
noid valve (bank 1)21. Seal ring
22. Water pump cover 23. Front oil seal 24. Crankshaft pulley
25. Crankshaft pulley bolt 26.Intake valve timing control sole-
noid valve (bank 2)27. Valve timing control cover (bank 2)
28.Valve timing control cover gasket
(bank 2)
A. Refer to EM-53
Refer to GI-4, "Components" for symbols in the figure.
A: Bank 1
B: Bank 2
C : Dowel pin hole
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SEM727G

TIMING CHAIN
EM-65
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c. Tighten mounting bolts in numerical order as shown in the fig-
ure.
14. Install crankshaft pulley as follows:
a. Install crankshaft pulley, taking care not to damage front oil seal.
 When press-fitting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).
b. Fix crankshaft with the pulley holder (commercial service tool).
c. Tighten crankshaft pulley bolt.
d. Place a paint mark (A) on crankshaft pulley (1) aligning with the
angle mark (B) on crankshaft pulley bolt (2). Tighten the bolt 90
degrees (angle tightening).
15. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns
smoothly.
16. Install in the reverse order of removal after this step.
InspectionINFOID:0000000003802271
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain as necessary.
INSPECTION AFTER INSTALLATION
Inspection for Leakage
The following are procedures for checking fluids leak, lubricates leak.
 Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
A: Bank 1
B: Bank 2
C : Dowel pin hole
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: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC4627J
A: Crack
B: Wear
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EM-66
< ON-VEHICLE REPAIR >
TIMING CHAIN
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.
 Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
 Bleed air from lines and hoses of applicable lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage

EM-68
< REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
 Place chocks at front and back of rear wheels.
 For engines not equipped with engine slingers, attach proper slingers and bolts described in PARTS
CATALOG.
CAUTION:
 Always be careful to work safely, avoid forceful or uninstructed operations.
 Never start working until exhaust system and engine coolant are cool enough.
 If items or work required are not covered by the engine section, refer to the applicable sections.
 Always use the support point specified for lifting.
 Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
 For supporting points for lifting and jacking point at rear axle, refer to GI-30, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Outline
At first, remove the engine and the transaxle assembly with front suspension member downward. Then sepa-
rate the engine and the transaxle.
Preparation
1. Release fuel pressure. Refer to EC-411, "Inspection".
2. Drain engine coolant. Refer to CO-8, "
Draining".
CAUTION:
 Perform this step when the engine is cold.
 Never spill engine coolant on drive belt.
3. Remove the following parts:
 Engine cover: Refer to EM-24, "
Exploded View".
 Front road wheel and tires
 Splash guards (RH and LH): Refer to EXT-22, "
FENDER PROTECTOR : Exploded View".
 Air duct (inlet), air cleaner cases (upper and lower) with mass air flow sensor and air duct assembly:
Refer to EM-26, "
Exploded View".
 Battery and battery tray: Refer to PG-109, "
Removal and Installation".
 Drive belt: Refer to EM-12, "
Removal and Installation".
 Reservoir tank of radiator. Refer to CO-13, "
Exploded View".
 Front wiper arm: Refer to WW-105, "
Exploded View".
4. Disconnect engine room harness at the TCM, ECM and other sides.
CAUTION:
To keep clean harness connector and avoid damage and foreign materials, cover them completely
with plastic bags or something similar.
5. Remove battery bracket with ECM and TCM.
6. Remove extension cowl top. Refer to EXT-20, "
Exploded View".
Engine Room
1. Disconnect heater hoses. Refer to CO-25, "Exploded View".
 Install plug to avoid leakage of engine coolant.
2. Remove EVAP hose. Refer to EM-28, "
Exploded View".
3. Disconnect fuel feed hose quick connector at fuel tube side. Refer to EM-44, "
Exploded View".
 Install plug to avoid leakage of fuel.
4. Disconnect transaxle shift control cable at transaxle side. Refer to TM-319, "
Exploded View" (VQ25DE) or
TM-157, "
Exploded View" (VQ35DE).
5. Disconnect brake booster vacuum hose at engine side. Refer to EM-28, "
Exploded View".
6. Disconnect ground cable.
7. Disconnect A/C compressor piping at A/C compressor side. Refer to HA-36, "
Exploded View".
8. Disconnect suction hoses of power steering oil pump at reservoir tank side. Refer to ST-34, "
Exploded
View".
 Install plug to avoid leakage of power steering fluid.
9. Disconnect CVT fluid cooler hoses from radiator. Refer to CO-13, "
Exploded View".

ENGINE ASSEMBLY
EM-75
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a. Tighten the bolt No. 2 as shown in the figure. (temporarily)
b. Tighten the bolts in numerical order as shown in the figure.
(specified torque)
InspectionINFOID:0000000003802274
INSPECTION AFTER INSTALLATION
Inspection for Leakage
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.
 Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
 Warm up engine thoroughly to check there is no leakage of fuel, exhaust gases, or any oil/fluids including
engine oil and engine coolant.
 Bleed air from lines and hoses of applicable lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.: Vehicle front
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Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

ENGINE STAND SETTING
EM-77
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The figure shows an example of widely use engine stand (A)
that can hold mating surface of transaxle with drive plate
removed.
CAUTION:
Before removing the hanging chains, check the engine
stand is stable and there is no risk of overturning.
5. Drain engine oil. Refer to LU-8, "
Draining".
6. Drain engine coolant by removing water drain plugs (A) and (B)
from cylinder block both sides as shown in the figure.
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C: Plug
D : Connector bolt
Tightening torque : Refer to EM-110, "Disassem-
bly and Assembly".
PBIC2487E

REAR TIMING CHAIN CASE
EM-81
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b. Remove timing chain tensioners (secondary) (1) with a stopper
pin (B) attached.
7. Use a scraper to remove all traces of old liquid gasket from front and rear timing chain cases, and oppo-
site mating surfaces.
 Remove old liquid gasket from bolt hole (B) and thread.
ASSEMBLY
1. Install rear timing chain case as follows:
 Install new O-rings (1) onto cylinder block.
a. Apply liquid gasket with the tube presser (commercial service tool) to rear timing chain case back side as
shown in the figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
 For “A” in the figure, completely wipe out liquid gasket extended on a portion touching at engine
coolant.
A : Bank 1
B : Bank 2
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A : Remove sticking old liquid gasket
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: Engine front
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EM-92
< DISASSEMBLY AND ASSEMBLY >
CAMSHAFT
b. Disconnect ignition coil and injector harness connectors. Refer to EM-49, "Exploded View" and EM-44,
"Exploded View".
3. Remove intake valve timing control solenoid valve. Refer to EM-79, "
Exploded View".
4. Crank engine, and then check that engine oil comes out from
intake valve timing control solenoid valve hole (A). End crank
after checking.
WARNING:
Be careful not to touch rotating parts. (drive belt, idler pul-
ley, and crankshaft pulley, etc.)
CAUTION:
 Prevent splashing by using a shop cloth so as to prevent
the worker from injury from engine oil and so as to prevent engine oil contamination.
 Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to
engine and vehicle. Especially, be careful no to apply engine oil to rubber parts of drive belt,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.
5. Perform the following inspection if engine oil does not come out from intake valve timing control solenoid
valve oil hole of the cylinder head.
 Remove oil filter, and then clean it. Refer to LU-10, "
Removal and Installation".
 Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to LU-2,
"EngineLubricationSystem".
6. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.
 Clean oil groove if necessary. Refer to LU-2, "
EngineLubricationSystem".
7. After inspection, install removed parts in the reverse order.
Inspection for Leakage
The following are procedures for checking fluids leak, lubricates leak. Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
 Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
 Bleed air from lines and hoses of applicable lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.1 : Valve timing control cover (bank 2)
: Engine front
JPBIA1783ZZ
Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage