engine NISSAN TEANA 2008 Service Manual

INTAKE MANIFOLD COLLECTOR
EM-31
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Tighten mounting nuts and bolts in numerical order as shown in the
figure.
NOTE:
Figure is shown as an example of VQ35DE.
Electric Throttle Control Actuator
 Tighten mounting bolts in numerical order as shown in the figure.
 Perform the “Throttle Valve Closed Position Learning” when har-
ness connector of electric throttle control actuator is disconnected.
Refer to EC-16, "
THROTTLE VALVE CLOSED POSITION
LEARNING : Special Repair Requirement".
 Perform the “Idle Air Volume Learning” and “Throttle Valve Closed
Position Learning” when electric throttle control actuator is
replaced. Refer to EC-16, "
IDLE AIR VOLUME LEARNING : Spe-
cial Repair Requirement".
: Engine front
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EM-32
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INTAKE MANIFOLD
INTAKE MANIFOLD
Exploded ViewINFOID:0000000003802255
Removal and InstallationINFOID:0000000003802256
REMOVAL
1. Release fuel pressure. Refer to EC-411, "Inspection".
2. Remove intake manifold collector. Refer to EM-28, "
Exploded View".
3. Remove fuel tube and fuel injector assembly. Refer to EM-44, "
Exploded View".
4. Loosen mounting nuts and bolts in reverse order as shown in
the figure to remove intake manifold with power tool.
5. Remove gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSTALLATION
Note the following, and install in the reverse order or removal.
Intake Manifold
 If stud bolts were removed, install them and tighten to the specified torque below.
1. Intake manifold 2. Gasket
A. Refer to EM-32
Refer to GI-4, "Components" for symbols in the figure.
JPBIA1629GB
: Engine front
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: 10.8 N·m (1.1 kg-m, 8 ft-lb)

INTAKE MANIFOLD
EM-33
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 Tighten all mounting nuts and bolts to the specified torque in two or
more steps in numerical order shown in the figure.
InspectionINFOID:0000000003802257
INSPECTION AFTER REMOVAL
Surface Distortion
 Check the surface distortion of the intake manifold mating surface
with a straightedge (A) and a feeler gauge (B).
 If it exceeds the limit, replace intake manifold.
: Engine front
1st step: 7.4 N·m (0.75 kg-m, 5 ft-lb)
2nd step and after: 25.5 N·m (2.6 kg-m, 19 ft-lb)
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Limit : Refer to EM-136, "Intake Manifold".
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EM-34
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EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded ViewINFOID:0000000003802258
Removal and InstallationINFOID:0000000003802259
REMOVAL
WARNING:
Perform the work when the exhaust and cooling system have completely cooled down.
1. Remove following parts:
 Air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly: Refer to EM-
26, "Exploded View".
 Engine cover: Refer to EM-24, "
Exploded View".
 Front wiper arm: Refer to WW-105, "
Exploded View".
 Extension cowl top: Refer to EXT-20, "
Exploded View".
2. Remove exhaust front tube. Refer to EX-5, "
Exploded View".
1. Gasket 2. Exhaust manifold (bank 1) 3. Exhaust manifold cover (bank 1)
4. Air fuel ratio sensor 1 (bank 1) 5. Ring gasket 6. Three way catalyst (bank 1)
7. Three way catalyst support (bank 1) 8. Heated oxygen sensor 2 (bank 1) 9. Air fuel ratio sensor 1 (bank 2)
10. Exhaust manifold cover (bank 2) 11. Exhaust manifold (bank 2) 12. Ring gasket
13. Three way catalyst (bank 2) 14. Three way catalyst support (bank 2) 15. Heated oxygen sensor 2 (bank 2)
A. To oil pan (upper) B. Upper mark
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA2235GB

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-35
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3. Disconnect harness connector and remove air fuel ratio sensor
1 on both banks with the heated oxygen sensor wrench [SST:
KV10117100 (J3647-A)] (B).
 Put marks to identify installation positions of each air fuel ratio
sensor 1.
CAUTION:
 Be careful not to damage air fuel ratio sensor 1.
 Discard any air fuel ratio sensor 1 which has been
dropped onto a hard surface such as a concrete floor.
Replace with a new sensor.
NOTE:
Figure is shown as an example of bank 2 (A).
4. Disconnect harness connector and remove heated oxygen sen-
sor 2 on both banks with the heated oxygen sensor wrench
[SST: KV10114400 (J38365)] (B).
 Put marks to identify installation positions of each heated oxy-
gen sensor 2.
CAUTION:
 Be careful not to damage heated oxygen sensor 2.
 Discard any heated oxygen sensor 2 which has been
dropped onto a hard surface such as a concrete floor.
Replace with a new sensor.
5. Remove exhaust manifold covers (bank 1 and bank 2).
6. Remove three way catalyst support mounting bolts (bank 1 and bank 2).
7. Remove three way catalysts (bank 1 and bank 2) by loosening bolts first and then removing nuts.
CAUTION:
Handle carefully to avoid any shock to three way catalyst.
8. Loosen mounting nuts in reverse order as shown in the figure to
remove exhaust manifolds (bank 1 and bank 2).
NOTE:
Disregard No. 7 and 8 when loosing.
9. Remove gaskets.
CAUTION:
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A : Bank 1
C : Bank 2
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A: Bank 1
B: Bank 2
: Engine front
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EM-36
< ON-VEHICLE REPAIR >
EXHAUST MANIFOLD AND THREE WAY CATALYST
Cover engine openings to avoid entry of foreign materials.
INSTALLATION
Note the following, and install in the reverse order of removal.
Exhaust Manifold Gasket
Install in the direction indicated in the figure.
Exhaust Manifold
 If stud bolts were removed, install them and tighten to the torque specified below.
 Tighten mounting nuts in numerical order as shown in the figure.
NOTE:
No. 7 and 8 mean double tightening of nuts No. 1 and 2.
Three Way Catalyst Supports
1. Temporarily tighten three way catalyst support mounting bolts.
2. Tighten three way catalyst support mounting bolts to oil pan (upper).
3. Tighten three way catalyst support mounting bolts to three way catalyst.
Air Fuel Ratio Sensor 1 and Heated Oxygen Sensor 2
 Install air fuel ratio sensor 1 and heated oxygen sensor 2 in the original position.
A: Bank 1
B : Triangle press
C: Bank 2
: Engine front
PBIC4954E
: 15.4 N·m (1.6 kg-m, 11 ft-lb)
A: Bank 1
B: Bank 2
: Engine front
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EM-38
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OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
Exploded ViewINFOID:0000000003802261
Removal and InstallationINFOID:0000000003802262
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
When removing oil pan (lower) or oil strainer only, take step 1 then step 18 and 19.
1. Drain engine oil. Refer to LU-8, "
Draining".
CAUTION:
Never spill engine oil on drive belt.
2. Drain engine coolant. Refer to CO-8, "
Draining".
CAUTION:
Never spill engine coolant on drive belt.
3. Remove following parts:
 Front road wheel and tires (RH and LH)
1. Oil pan (upper) 2. O-ring 3. Oil pan gasket (front)
4. Relief valve 5. Oil pressure switch 6. Oil cooler
7. Connector bolt 8. Oil filter 9. Oil strainer
10. Drain plug 11. Drain plug washer 12. Oil pan (lower)
13. Rear plate cover 14. Crankshaft position sensor (POS) 15. Oil pan gasket (rear)
A. Refer to LU-10
B. To oil pump C. Oil pan side
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA1636GB

OIL PAN AND OIL STRAINER
EM-39
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 Splash guard (RH and LH): Refer to EXT-22, "FENDER PROTECTOR : Exploded View".
 Exhaust front tube: Refer to EX-5, "
Exploded View".
 Drive belt: Refer to EM-12, "
Removal and Installation".
4. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to HA-36,
"Exploded View".
5. Remove oil level gauge. Refer to EM-96, "
Exploded View".
6. Remove front drive shaft (RH). Refer to FAX-16, "
Exploded View".
7. Remove three way catalyst (bank 1 and bank 2) from exhaust manifolds (bank 1 and bank 2). Refer to
EM-34, "
Exploded View".
8. Remove oil pressure switch.
9. Remove oil filter. Refer to LU-10, "
Removal and Installation".
10. Remove oil cooler and water pipes. Refer to LU-11, "
Exploded View".
11. Support transaxle assembly with a suitable jack.
CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
12. Support front suspension member with a suitable jack.
13. Remove engine mounting insulator (rear). Refer to EM-67, "
Exploded View".
14. Remove engine mounting insulator (LH) mounting bolts from transaxle. Refer to EM-67, "
Exploded View".
15. Remove rear torque rod through bolts from rear torque rod bracket. Refer to EM-67, "
Exploded View".
16. Remove member stay, front suspension member fixing bolts and nuts. Refer to FSU-16, "
Exploded View".
17. Lower the jack for the front suspension member to the height.
18. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in reverse order as shown in the figure to
remove.
b. Insert the seal cutter [SST: KV10111100 (J37228)] (A) between
oil pan (upper) and oil pan (lower).
CAUTION:
 Be careful not to damage the mating surfaces.
 Never insert a screwdriver, this will damage the mating
surfaces.
c. Slide the seal cutter by tapping on the side of tool with a ham-
mer. Remove oil pan (lower).
19. Remove oil strainer.
PBIC0782E
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EM-40
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OIL PAN AND OIL STRAINER
20. Loosen mounting bolts in the reverse order as shown in the fig-
ure to remove.
 Insert the seal cutter [SST: KV10111100 (J37228)] between oil
pan (upper) and cylinder block. Slide seal cutter by tapping on
the side of tool with a hammer. Remove oil pan (upper).
CAUTION:
 Be careful not to damage the mating surfaces.
 Never insert a screwdriver, this will damage the mating
surfaces.
21. Remove O-rings (2) from bottom of cylinder block (1) and oil
pump (3).
22. Remove oil pan gaskets (1).
INSTALLATION
1. Install oil pan (upper) as follows:
a. Use a scraper to remove old liquid gasket from mating surfaces.
CAUTION:
Never scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
 Also remove old liquid gasket from mating surface of cylinder
block.
 Remove old liquid gasket from the bolt holes and threads.
b. Install new oil pan gaskets.
PBIC1636E
: Engine front
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A : Notch
B : Protrusion
: Engine front
JPBIA0433ZZ
MEM108A

OIL PAN AND OIL STRAINER
EM-41
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 Apply liquid gasket to new oil pan gaskets as shown in the fig-
ure.
Use Genuine Liquid Gasket or equivalent.
 To install, align protrusion (B) of oil pan gasket with notches
(A) of front timing chain case and rear oil seal retainer.
 Install oil pan gasket (1) with smaller arc to front timing chain
case side.
c. Install new O-rings (2) on the bottom of cylinder block (1) and oil
pump (3).
d. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to the cylinder block mating surface of
oil pan (upper) to a limited portion as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
 For bolt holes with marks (5 locations), apply liquid
gasket outside the holes.
 Apply a bead of 4.5 to 5.5 mm (0.177 to 0.217 in) diameter to area (a).
 Attaching should be done within 5 minutes after coating.
e. Install oil pan (upper).
CAUTION:
Install avoiding misalignment of both O-rings.
C : Sealing point
a : 15 mm (0.59 in)
b : 5 mm (0.20 in)
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: Engine front
JPBIA0433ZZ
: Engine front
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b : 35 mm (1.38 in)
c: φ3.5 - 4.5 mm (0.138 - 0.177 in)
: Engine front
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