2008 NISSAN TEANA engine oil

IGNITION COIL, SPARK PLUG AND ROCKER COVER
EM-51
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1. Apply liquid gasket to the position shown in the figure with the
following procedure:
Use Genuine Liquid Gasket or equivalent.
a. Refer to figure (E) to apply liquid gasket to joint part of camshaft
bracket (No. 1) (1) and cylinder head.
b. Refer to figure (H) to apply liquid gasket in 90 degrees to figure.
2. Install rocker cover gasket to rocker cover.
3. Install rocker cover.
 Check if rocker cover gasket is not dropped from the installation groove of rocker cover.
4. Tighten bolts in two steps separately in numerical order as
shown in the figure.
5. Install in the reverse order of removal after this step.
A : Liquid gasket application point
F: View F
b: 4 mm (0.16 in)
c: φ2.5 - 3.5 mm (0.098 - 0.138 in)
d: 5 mm (0.20 in)
g : 10 mm (0.39 in)
I : End surface of camshaft bracket (No. 1)
: Engine front
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: Engine front
1st step: 1.96 N·m (0.2 kg-m, 17 in-lb)
2nd step: 8.33 N·m (0.85 kg-m, 74 in-lb)
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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

EM-62
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TIMING CHAIN
CAUTION:
Never overtighten slack guide mounting bolt (2). It is nor-
mal for a gap (A) to exist under the bolt seat when mounting
bolt is tightened to specification.
7. Install the timing chain tensioner (primary) with the following procedure:
a. Pull plunger stopper tab (A) up (or turn lever downward) so as to
remove plunger stopper tab from the ratchet of plunger (D).
NOTE:
Plunger stopper tab and lever (C) are synchronized.
b. Push plunger into the inside of tensioner body.
c. Hold plunger in the fully compressed position by engaging
plunger stopper tab with the tip of ratchet.
d. To secure lever, insert stopper pin (E) through hole of lever into
tensioner body hole (B).
 The lever parts and the tab are synchronized. Therefore, the
plunger will be secured under this condition.
NOTE:
Figure shows the example of 1.2 mm (0.047 in) diameter thin screwdriver being used as the stopper pin.
e. Install timing chain tensioner (primary) (1).
 Remove any dirt and foreign materials completely from the
back and the mounting surfaces of timing chain tensioner (pri-
mary).
f. Pull out stopper pin (A) after installing, and then release plunger.
8. Check again that the mating marks on each sprocket and each timing chain have not slipped out of align-
ment.
9. Install new O-rings (1) on rear timing chain case.
10. Install new front oil seal on front timing chain case.
 Apply new engine oil to both oil seal lip and dust seal lip.
1 : Slack guide
3 : Cylinder block
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A: Bank 1
B: Bank 2
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TIMING CHAIN
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 Install it so that each seal lip is oriented as shown in the figure.
 Using a suitable drift [outer diameter: 60 mm (2.36 in)], press-
fit oil seal until it becomes flush with front timing chain case
end face.
 Check the garter spring is in position and seal lip is not
inverted.
11. Install water pump cover to front timing chain case.
 Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to water pump cover (1) as shown in
the figure.
Use Genuine Liquid Gasket or equivalent.
12. Install front timing chain case as follows:
A: Oil seal lip
B : Dust seal lip
: Engine inside
: Engine outside
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PBIC0790E
a: φ2.3 - 3.3 mm (0.091 - 0.130 in)
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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)
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A: Crack
B: Wear
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EM-66
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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-69
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10. Remove starter motor. Refer to STR-15, "VQ25DE : Exploded View" (VQ25DE) or STR-20, "VQ35DE :
Exploded View" (VQ35DE).
Vehicle Underbody
1. Remove front drive shafts (RH and LH). Refer to FAX-16, "Exploded View".
2. Remove exhaust front tube. Refer to EX-5, "
Exploded View".
3. Remove heat insulator.
4. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to ST-16, "
Exploded View".
5. Disconnect front stabilizer connecting rod. Refer to FSU-14, "
Exploded View".
6. Remove strut assembly and steering knuckle fixing nuts and bolts. Refer to FSU-9, "
Exploded View" and
FA X - 8 , "
Exploded View".
7. Remove front wheel sensor (RH and LH) for ABS from steering knuckle. Refer to BRC-57, "
FRONT
WHEEL SENSOR : Exploded View".
8. Remove front brake caliper assembly with piping connected, and temporarily secure it to aside for vehicle
side. Refer to BR-34, "
BRAKE CALIPER ASSEMBLY : Exploded View".
9. Disconnect power steering piping at a point between vehicle and engine. Refer to ST-34, "
Exploded
View".
 Install plug to avoid leakage of power steering fluid.
10. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to EM-38, "
Exploded View" and TM-332, "Removal and Installation" (VQ25DE) or TM-168,
"Removal and Installation" (VQ35DE).
11. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-38, "
Exploded
View".
12. Remove crankshaft position sensor (POS). Refer to EM-38, "
Exploded View".
CAUTION:
 Handle carefully to avoid dropping and shocks.
 Never disassemble.
 Never allow metal powder to adhere to magnetic part at sensor tip.
 Never place sensors in a location where they are exposed to magnetism.
Removal
1. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of front suspension member.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2. Remove engine mounting insulator (RH) and engine mounting bracket (RH).
3. Remove mounting bolt between transverse link and front suspension member with power tool.
4. Remove front suspension member mounting nuts and bolts. Refer to FSU-16, "
Exploded View".
5. Carefully lower jack, or raise lift to remove the engine and the transaxle assembly and front suspension
member. When performing work, observe the following caution:
CAUTION:
 Confirm there is no interference with the vehicle.
 Check all connection points have been disconnected.
 Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support the vehi-
cle at rear jacking point(s) to prevent it from falling it off the lift.
Separation
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