engine NISSAN TEANA 2008 Service Manual

REAR TIMING CHAIN CASE
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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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CAMSHAFT
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2. Loosen camshaft sensor bracket bolts in reverse order as
shown in the figure.
NOTE:
The order of loosening bolts in the same for bank 1 and bank 2.
3. 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
reverse order as shown in the figure.
4. Remove camshafts.
5. Remove valve lifters.
 Identify installation positions, and store them without mixing them up.
6. Remove timing chain tensioners (secondary) (1) from cylinder
head.
 Remove timing chain tensioner (secondary) with its stopper
pin (C) attached.
NOTE:
Stopper pin should be attached when timing chain (secondary)
is removed.
INSTALLATION
: Engine front
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: Engine front
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A: Bank 1
B: Bank 2
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CAMSHAFT
1. Install timing chain tensioners (secondary) (1) on both sides of
cylinder head.
 Install timing chain tensioner (secondary) with its stopper pin
(C) attached.
 Install timing chain tensioner (secondary) with sliding part fac-
ing downward on cylinder head (bank 1), and with sliding part
facing upward on cylinder head (bank 2).
2. Install valve lifters.
 Install it in the original position.
3. Install camshafts.
 Follow your identification marks made during removal, or fol-
low the identification marks that are present on new camshafts
for proper placement and direction.
VQ25DE
VQ35DE
 Install camshaft so that dowel pin (A) on front end face are
positioned as shown in the figure. (No. 1 cylinder TDC on its
compression stroke)
NOTE:
Though camshaft does not stop at the portion as shown in the
figure, for the placement of cam nose, it is generally accepted
camshaft is placed for the same direction of the figure.
4. Install camshaft brackets.
A: Bank 1
B: Bank 2
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: Engine front
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Bank INT/EXH Dowel pin (1)Paint marks
M1 (D) M2 (E) M3 (C)
1EXH (B) Yes No Purple Light blue
INT (A) Yes Yellow No Light blue
2INT (A) Yes Yellow No Light blue
EXH (B) Yes No Purple Light blue
Bank INT/EXH Dowel pin (1)Paint marks
M1 (D) M2 (E) M3 (C)
1EXH (B) Yes No Light blue Light blue
INT (A) Yes Pink No Light blue
2INT (A) Yes Pink No Light blue
EXH (B) Yes No Light blue Light blue
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CAMSHAFT
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 Remove foreign material completely from camshaft bracket backside and from cylinder head installation
face.
 Install camshaft bracket in original position and direction as
shown in the figure.
 Install camshaft brackets (No. 2 to 4) aligning the stamp marks
(A) as shown in the figure.
NOTE:
There are no identification marks indicating left and right for
camshaft bracket (No. 1).
 Apply liquid gasket to mating surface of camshaft bracket (No.
1) as shown on bank 1 and bank 2.
Use Genuine Liquid Gasket or equivalent.
A : No. 1
B : No. 2
C : No. 3
D : No. 4
E: Bank 1
F : Exhaust side
G : Intake side
H: Bank 2
I : Intake side
J : Exhaust side
: Engine front
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B: Bank 1
C: Bank 2
: Engine front
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a : 8.5 mm (0.335 in)
b : 2 mm (0.08 in)
c : Clearance 5 mm (0.20 in)
d: φ2.0 - 2.3 mm (0.08 - 0.12 in)
* : Apply liquid gasket to rear timing chain case side
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EM-88
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CAMSHAFT
5. Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.
a. Tighten No. 7 to 10 in order as shown.
b. Tighten No. 1 to 6 in order as shown.
c. Tighten No. 1 to 10 in numerical order as shown.
d. Tighten No. 1 to 10 in numerical order as shown.
CAUTION:
After tightening mounting bolts of camshaft brackets (No.
1), be sure to wipe off excessive liquid gasket from the
parts list below.
 Mating surface of rocker cover
 Mating surface of rear timing chain case
6. Tighten camshaft sensor bracket bolts in numerical order as
shown in the figure.
NOTE:
The order of tightening bolts in the same for bank 1 and bank 2.
7. Measure difference in levels between front end faces of cam-
shaft bracket (No. 1) and cylinder head.
 Measure two positions (both intake and exhaust side) for a
single bank.
 If the measured value is out of the standard, reinstall camshaft
bracket (No. 1).
8. Inspect and adjust the valve clearance. Refer to EM-17, "
Inspection and Adjustment".
9. Install in the reverse order of removal after this step.
InspectionINFOID:0000000003802285
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on precise flat table, and support No. 2 and 4 journals of camshaft.
: Engine front
: 1.96 N·m (0.20 kg-m, 1 ft-lb)
: 1.96 N·m (0.20 kg-m, 1 ft-lb)
: 5.88 N·m (0.60 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
: Engine front
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Standard : −0.14 to 0.14 mm (−0.0055 to 0.0055 in)
EMQ0044D

CAMSHAFT
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Check if surface of valve lifter has any wear or cracks.
 If anything above is found, replace valve lifter. Refer to EM-136,
"Camshaft".
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER Measure the outer diameter at 1/2 height of valve lifter with a
micrometer (A) since valve lifter is in barrel shape.
VALVE LIFTER HOLE DIAMETER Measure the inner diameter of valve lifter hole of cylinder head with
an inside micrometer.
VALVE LIFTER CLEARANCE (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter outer diameter)
 If the calculated value is out of the standard, referring to each standard of valve lifter outer diameter and
valve lifter hole diameter, replace either or both valve lifter and cylinder head.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
 Perform this inspection only when DTC P0011 is detected in self-diagnostic results of CONSULT-III
and it is directed according to inspection procedure of EC section. Refer to EC-137, "
Diagnosis Pro-
cedure".
 Check when engine is cold so as to prevent burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-7, "
Inspection".
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release the fuel pressure. Refer to EC-411, "
Inspection".
KBIA0182E
Standard
: Refer to EM-136, "Camshaft".
(Intake and exhaust)
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Standard
: Refer to EM-136, "Camshaft".
(Intake and exhaust)
SEM867E
Standard
: Refer to EM-136, "Camshaft".
(Intake and exhaust)

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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

OIL SEAL
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OIL SEAL
VALVE OIL SEAL
VALVE OIL SEAL : Removal and InstallationINFOID:0000000003802286
REMOVAL
1. Remove camshaft relating to valve oil seal to be removed. Refer to EM-84, "Exploded View".
2. Remove valve lifters. Refer to EM-84, "
Exploded View".
3. Turn crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping
into cylinder.
4. Remove valve collet.
 Compress valve spring with the valve spring compressor [SST:
KV10116200 (J26336-A)] (A), the attachment [SST:
KV10115900 (J26336-20)] (C), the adapter [SST:
KV10109220 ( — )] (B). Remove valve collet with a magnet
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
5. Remove valve spring retainer, and valve spring.
6. Remove valve oil seal using the valve oil seal puller [SST:
KV10107902 (J38959)] (A).
INSTALLATION
1. Apply new engine oil on new valve oil seal joint and seal lip.
2. Using the valve oil seal drift [SST: KV10115600 (J-38958)] (A),
press fit valve seal to height (b) shown in the figure.
NOTE:
Dimension: Height measured before valve spring seat installa-
tion
3. Install in the reverse order of removal after this step.
FRONT OIL SEAL
FRONT OIL SEAL : Removal and InstallationINFOID:0000000003802287
REMOVAL
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Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
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OIL SEAL
1. Remove the following parts:
 Road wheel and tire (RH)
 Splash guard (RH): Refer to EXT-22, "
FENDER PROTECTOR : Exploded View".
 Drive belt: Refer to EM-12, "
Removal and Installation".
 Crankshaft pulley: Refer to EM-52, "
Exploded View".
2. Remove front oil seal using a suitable tool.
CAUTION:
Be careful not to damage front timing chain case and crank-
shaft.
INSTALLATION
1. Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.
2. Install front oil seal.
 Install front oil seal so that each seal lip is oriented as shown in
the figure.
 Using a suitable drift, press-fit until the height of front oil seal is
level with the mounting surface.
- Suitable drift: outer diameter 60 mm (2.36 in), inner diameter
50 mm (1.97 in).
 Check the garter spring is in position and seal lips not inverted.
CAUTION:
 Be careful not to damage front timing chain case and
crankshaft.
 Press-fit straight and avoid causing burrs or tilting oil
seal.
3. Install in the reverse order of removal after this step.
REAR OIL SEAL
REAR OIL SEAL : Removal and InstallationINFOID:0000000003802288
REMOVAL
1. Remove transaxle assembly. Refer to TM-332, "Exploded View" (VQ25DE) or TM-168, "Exploded View"
(VQ35DE).
2. Remove drive plate. Refer to EM-107, "
Exploded View".
3. Remove oil pan (upper). Refer to EM-38, "
Exploded View".
SEM829E
A: Oil seal lip
B : Dust seal lip
: Engine inside
: Engine outside
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SEM829E

OIL SEAL
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4. Use a seal cutter (SST) to cut away liquid gasket and remove
rear oil seal retainer.
CAUTION:
Be careful not to damage mating surfaces.
NOTE:
Regard both rear oil seal and retainer a an assembly.
INSTALLATION
1. Remove old liquid gasket on mating surfaces of cylinder block and oil pan (upper) using scraper.
2. Apply new engine oil to both oil seal lip and dust seal lip of new oil seal retainer.
3. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to rear oil seal retainer as shown in the
figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
Attaching should be done within 5 minutes after coating.
4. Install rear oil seal retainer to cylinder block. Refer to EM-107, "
Exploded View".
 Check the garter spring is in position and seal lips not inverted.
5. Install in the reverse order of removal after this step.
SEM830E
PBIC2649E