coolant NISSAN TEANA 2008 Owners Manual

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
< REMOVAL AND INSTALLATION >
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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
< DISASSEMBLY AND ASSEMBLY >
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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
< DISASSEMBLY AND ASSEMBLY >
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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
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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

EM-104
< DISASSEMBLY AND ASSEMBLY >
CYLINDER HEAD
c. Using a drift, press-fit spark plug tube so that its height (A) is as
specified in the figure.
CAUTION:
 When press-fitting, take care not to deform spark plug
tube.
 After press-fitting, wipe off liquid gasket protruding onto
cylinder-head upper face.
11. Install spark plug with the spark plug wrench (commercial service tool).
InspectionINFOID:0000000003802292
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter
 Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between (C) and (B)
exceeds the limit, replace them with new one.
 If reduction of outer diameter appears in a position other than (B),
use it as (B) point.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to EM-143,
"CylinderBlock".
1. Using a scraper, wipe off oil, scale, gasket, sealant and carbon deposits from surface of cylinder head.
CAUTION:
Never allow gasket fragments to enter engine oil or engine coolant passages.
2. At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions (A), (B), (C), (D), (E) and
(F).
 If it exceeds the limit, replace cylinder head.
INSPECTION AFTER DISASSEMBLY
Valve Dimensions
 Check the dimensions of each valve. For the dimensions, refer to EM-139, "CylinderHead".
 If dimensions are out of the standard, replace valve and check valve seat contact. Refer to "Valve Seat Con-
tact".
Valve Guide Clearance
Valve Stem Diameter
B : High strength thread locking sealant application area
Standard press-fit height: 37.7 - 38.7 mm (1.484 - 1.524 in)
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Limit [(C) - (B)] : 0.11 mm (0.0043 in)
A : Measuring point
d : 11 mm (0.43 in)
e : 48 mm (1.89 in)
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Limit : Refer to EM-139, "CylinderHead".
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EM-106
< DISASSEMBLY AND ASSEMBLY >
CYLINDER HEAD
 Check the valve spring pressure at specified spring height.
 If the installation load or load with valve open is out of the stan-
dard, replace valve spring.
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.
Standard (Intake and exhaust)
: Refer to EM-139,
"CylinderHead". Free height
Installation height
Installation load
Height during valve open
Load with valve open
SEM113
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 —

EM-112
< DISASSEMBLY AND ASSEMBLY >
CYLINDER BLOCK
 Loosen main bearing cap bolts in the reverse order shown in
the figure in several different steps.
10. Remove main bearing beam.
11. Remove main bearing caps.
CAUTION:
Be careful not to drop main bearing, and to scratch the sur-
face.
 Using main bearing cap bolts, remove main bearing cap while
shaking it back-and-forth.
12. Remove crankshaft.
13. Remove main bearings and thrust bearings from cylinder block and main bearing caps.
CAUTION:
 Be careful not to drop main bearing, and to scratch the surface.
 Identify installation positions, and store them without mixing them up.
14. Remove oil jet. (VQ35DE)
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.
: Engine front
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PBIC0881E
EMQ0195D

CYLINDER BLOCK
EM-123
< DISASSEMBLY AND ASSEMBLY >
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Unit: mm (in)
*: After installing in connecting rod
CYLINDER BLOCK DISTORTION
 Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.
 Measure the distortion on the cylinder block upper face at some
different points in six directions (C), (D), (E), (F), (G) and (H) with a
straightedge (A) and a feeler gauge (B).
 If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
 Install main bearing caps (2) and main bearing beam without
installing main bearings, and tighten main bearing cap bolts to the
specified torque. Refer to EM-110, "
Disassembly and Assembly"
for the tightening procedure.
 Measure the inner diameter of main bearing housing with a bore
gauge.
 If out of the standard, replace cylinder block (1) and main bearing
caps as assembly.
NOTE:
Cylinder block cannot be replaced as a single part, because it is
machined together with main bearing caps.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore inner Diameter
 Using a bore gauge, measure cylinder bore for wear, out-of-round
and taper at six different points on each cylinder. [(A) and (B) direc-
tions at (C), (D) and (E)] is in longitudinal direction of engine.
Grade 0 1
Connecting rod bushing inner diameter *22.000 - 22.006
(0.8661 - 0.8664)22.006 - 22.012
(0.8664 - 0.8666)
Piston pin hole diameter21.993 - 21.999
(0.8659 - 0.8661)21.999 - 22. 005
(0.8661 - 0.8663)
Piston pin outer diameter21.989 - 21.995
(0.8657 - 0.8659)21.995 - 22.001
(0.8659 - 0.8662)
Limit : Refer to EM-143, "CylinderBlock".
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Standard : Refer to EM-143, "CylinderBlock".
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f : 10 mm (0.39 in)
g : 60 mm (2.36 in)
h : 120 mm (4.72 in)
Standard and limit : Refer to EM-143, "
CylinderBlock".
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