engine NISSAN TEANA 2014 Service Manual

EM-34
< REMOVAL AND INSTALLATION >[QR25DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
9. Loosen the exhaust manifold and three way catalyst nuts in the
reverse order as shown.
10. Remove the exhaust manifold and three way catalyst assembly and gasket. Discard the gasket.
11. Remove the exhaust manifold cover (lower rear).
INSPECTION AFTER REMOVAL
Surface Distortion
• Use a reliable straightedge (A) and feeler gauge (B) to check the flatness of exhaust manifold mating surface.
NOTE:
Place the straightedge (A) diagonally and measure in several loca-
tions.
INSTALLATION
Exhaust Manifold
1. Install studs in cylinder head and exhaust manifold (if removed). Then tighten to specification.
CAUTION:
Do not reuse cylinder head or exhaust manifold studs.
2. Install exhaust manifold cover (lower rear) (if removed) and bolts. Then tighten the bolts to specification in the numerical
order shown.
CAUTION:
Do not reuse bolts.
3. Install the exhaust manifold and gasket. Then tighten the nuts to specification in the numerical order shown.
CAUTION:
Do not reuse gasket. : Engine front
AWBIA0559ZZ
Limit : 0.3 mm (0.012 in)
ALBIA0828GB
ALBIA0887GB
: Engine front
AWBIA0560ZZ
Revision: November 20132014 Altima NAM

EM-36
< REMOVAL AND INSTALLATION >[QR25DE]
OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
Exploded ViewINFOID:0000000009460484
Removal and InstallationINFOID:0000000009460485
REMOVAL
WARNING:
To avoid the danger of being scalded, never dr ain the engine oil when the engine is hot.
1. Drain engine oil. Refer to LU-10, "Changing Engine Oil"
.
2. Remove the oil filter. Refer to LU-11, "Removal and Installation"
.
1. Oil pan, upper 2. Oil filter 3. Front cover
4. O-ring 5. Oil strainer 6. Oil pan, lower
7. Washer 8. Drain plug 9. O-ring
10. Oil level gauge guide 11. Oil level gauge 12. Rear cover plate
A. To Oil pan, lower
AWBIA1622ZZ
Revision: November 20132014 Altima NAM

OIL PAN AND OIL STRAINEREM-37
< REMOVAL AND INSTALLATION > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
3. Remove the front exhaust tube and gaskets. Refer to
EX-5, "Exploded View".
4. Remove the fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
5. Remove oil level gauge (1), oil level gauge guide (2), and O-ring (3).
CAUTION:
Do not reuse O-ring.
6. Disconnect the air fuel ratio sensor 1 electrical harness connector.
7. Remove the front driveshaft (LH) and front driveshaft (RH). Refer to FAX-10, "Removal and Installation
(LH)" and FAX-12, "Removal and Installation (RH)".
8. Remove the connecting rod (LH) and the connecting rod (RH). Refer to FSU-19, "Exploded View"
.
9. Remove the tie rod end from the steering knuckle ( RH) and the tie rod end from the steering knuckle (LH).
Refer to ST-36, "Exploded View"
.
10. Remove the power steering gear bolts and support the power steering gear. Refer to ST-36, "Removal
and Installation".
11. Remove the rear engine mount torque rod bracket. Refer to EM-84, "Removal and Installation"
.
12. Remove the front suspension member for clearance to remove the oil pan. Refer to FSU-20, "Removal
and Installation".
13. Disconnect the A/C compressor electrical harness connector.
14. Remove the drive belt. Refer to EM-19, "Removal and Installation"
.
15. Remove the A/C compressor bolts, position the A/C compressor aside and support. Refer to HA-30,
"COMPRESSOR : Removal and Installation".
16. Remove the lower oil pan bolts in the reverse order as shown, using power tool.
17. Remove the lower oil pan using Tool (A). CAUTION:
Be careful not to damage the mating surfaces.
NOTE:
In areas where the cutter is difficult to use, use a plastic hammer
to lightly tap (1) the cutter where the liquid gasket is applied. Use
a plastic hammer to slide (2) the cutter by tapping on the side.
ALBIA0910GB
ALBIA0830GB
Tool number : KV10111100 (J-37228)
AWBIA1249GB
Revision: November 20132014 Altima NAM

EM-38
< REMOVAL AND INSTALLATION >[QR25DE]
OIL PAN AND OIL STRAINER
18. Remove the oil strainer bolts in the reverse order as shown then
remove the oil strainer.
19. Remove rear cover plate, and four engine-to transaxle bolts, using power tool.
20. Loosen the upper oil pan bolts in the order shown using power tool.
21. Remove upper oil pan using Tool (A). • Remove the three O-rings from the upper oil pan and front
cover.
CAUTION:
Be careful not to damage the mating surfaces.
NOTE:
In areas where the cutter is difficult to use, use a plastic hammer
to lightly tap (1) the cutter where the liquid gasket is applied. Use
a plastic hammer to slide (2) the cutter by tapping on the side.
INSPECTION AFTER REMOVAL
Clean the oil strainer screen to remove any foreign material.
INSTALLATION
1. Apply Genuine Silicone RTV Sealant or equivalent to the upper oil pan at the specified sealant bead diameter (A) as shown.
Refer to GI-21, "Recommended Chemical Products and Seal-
ants".
CAUTION:
• Install two new O-rings in the upper oil pan and a new O- ring in the front cover.
• Do not reuse O-rings.
• Installation should be done within 5 minutes after apply- ing liquid gasket.
• Do not fill the engine with oil for at least 30 minutes after the co mponents are installed to allow
the liquid gasket to cure.
AWBIA1382ZZ
ALBIA0832GB
Tool number : KV10111100 (J-37228)AWBIA1249GB
Sealant bead
diameter (A) : 4.0 - 5.0 mm (0.157 - 0.197 in)
AWBIA1371ZZ
Revision: November 20132014 Altima NAM

OIL PAN AND OIL STRAINEREM-39
< REMOVAL AND INSTALLATION > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
2. Install the upper oil pan to the block and tighten the upper oil pan
bolts to specification in the order shown.
3. Apply Genuine Silicone RTV Sealant or equivalent to the lower oil pan at the specified sealant bead diameter (A) as shown.
Refer to GI-21, "Recommended Chemical Products and Seal-
ants".
CAUTION:
• Installation should be done within 5 minutes after apply-
ing liquid gasket.
• Do not fill the engine with oi l for at least 30 minutes after
the components are installed to allow the liquid gasket to
cure.
4. Install the lower oil pan to the upper oil pan and tighten the lower oil pan bolts to specification in the numerical order shown.
5. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Check for engine oil leaks with the engine at operating temperature and running at idle.
All bolts except 18 and 19 : 21.6 N·m (2.2 kg-m, 16.0 ft-
lb)
Bolts 18 and 19 : 8.8 N·m (0.90 kg-m, 78.0 in- lb)
ALBIA0832GB
Sealant bead
diameter (A) : 4.0 - 5.0 mm (0.157 - 0.197 in)ALBIA0834GB
ALBIA0830GB
Revision: November 20132014 Altima NAM

EM-40
< REMOVAL AND INSTALLATION >[QR25DE]
IGNITION COIL
IGNITION COIL
Exploded ViewINFOID:0000000009460486
Removal and InstallationINFOID:0000000009460487
REMOVAL
1. Remove the engine room cover. Refer to
EM-28, "Removal and Installation".
2. Disconnect the harness connector from the ignition coil.
3. Remove the ignition coil. CAUTION:
Do not drop or shock it.
INSTALLATION
Installation is in the reverse order of removal.
1. Ignition coil 2. Spark plug 3. Rocker cover
AWBIA1302GB
Revision: November 20132014 Altima NAM

FUEL INJECTOR AND FUEL TUBEEM-41
< REMOVAL AND INSTALLATION > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
FUEL INJECTOR AND FUEL TUBE
Exploded ViewINFOID:0000000009460488
Removal and InstallationINFOID:0000000009460489
CAUTION:
• Apply new engine oil before inst alling the parts, as shown above.
• Do not remove or disassemble part s unless instructed as shown.
REMOVAL
1. Remove engine room cover. Refer to EM-28, "Removal and Installation".
2. Release the fuel pressure. Refer to EC-182, "Work Procedure"
.
3. Disconnect the battery negative terminal. Refer to PG-73, "Removal and Installation (Battery)"
.
4. Remove the air duct hose and resonator. Refer to EM-29, "Exploded View"
.
1. Rocker cover 2. Cylinder head 3. Fuel tube
4. Clip 5. O-ring (green) 6. Fuel injector
7. O-ring (black) Front
AWBIA1378ZZ
Revision: November 20132014 Altima NAM

EM-42
< REMOVAL AND INSTALLATION >[QR25DE]
FUEL INJECTOR AND FUEL TUBE
5. Remove quick connector cap (1) from the fuel feed side (B) and
the fuel tube side (A).
6. Disconnect the fuel hose quick connector at the fuel tube side using Tool (D).
CAUTION:
• Do not pull with lateral force applied. O-ring inside quick connector may be damaged.
• Prepare container and cloth beforehand as fuel will leak out.
• Avoid fire and sparks.
• Be sure to cover openings of disconnected pipes with
plug or plastic bag to avoid fuel leaks and entry of foreign
materials.
• Do not reuse O-ring.
a. With the sleeve (E) side of Tool (D) facing quick connector, install Tool onto fuel tube.
b. Insert Tool into quick connector until sleeve contacts and goes no further (A). Hold the Tool on that posi-
tion.
CAUTION:
Inserting the Tool hard will not disconnect quick connector. Hold Tool where it contacts and goes
no further.
c. Hold the fuel tube in the location (B) and pull the quick connector straight out in direction (C) from the fuel
tube.
7. Disconnect the EVAP canister purge volume control solenoid.
8. Remove the PCV hose from the rocker cover.
9. Disconnect sub-harness for injectors at engine front side, and remove it from bracket.
10. Disconnect the fuel injector harness connectors.
11. Loosen the bolts in the reverse order shown, then remove fuel tube and fuel injectors as an assembly.
12. Remove the fuel injectors from the fuel tube, (if necessary).
a. Release the clip.
b. Pull fuel injector straight out of the fuel tube. CAUTION:
• Be careful not to damage the nozzle.
• Avoid any impact, such as dropping the fuel injector.
• Do not disassemble or adjust the fuel injector.
INSTALLATION
1. Install new O-rings on the fuel injector.
CAUTION:
• Do not reuse O-rings.
• Upper and lower O-rings are different. Be careful not to confuse them.
ALBIA0890GB
Tool number : 16441 6N210 (J-45488)
ALBIA0891GB
AWBIA1261GB
Revision: November 20132014 Altima NAM

FUEL INJECTOR AND FUEL TUBEEM-43
< REMOVAL AND INSTALLATION > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O• Handle O-rings with bare hands only. Do not wear gloves.
• Do not clean O-rings with solvent.
• Make sure that O-ring and its mating part are free of foreign material.
• Be careful not to scratch O- rings during installation.
• Do not twist or stretch the O-ring. If the O-ring was stretched while it is attached, do not insert it
into the fuel tube immediately.
2. Install the fuel injector (5) into the fuel tube (1) with the following procedure:
(2): O-ring (black)
(4): O-ring (green)
a. Insert the new clip (3) into the clip mounting groove (F) on fuel injector (5).
• Insert the clip (3) so that prot rusion (E) of fuel injector (5)
matches cutout (C) of the clip (3).
CAUTION:
• Do not reuse clip (3), replace it with a new one.
• Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector (5) into fuel tube (1) with clip (3) attached. • Insert fuel injector (5) so that protrusion (A) of fuel tube (1)
matches cut-out (B) of the clip (3).
• Check that fuel tube flange (G) is securely fixed in flange
groove (D) on the clip (3).
c. Check that installation is comple te by checking that fuel injector
(5) does not rotate or come off.
3. Install fuel tube and fuel injector assembly with the following procedure.
a. Insert the tip of each fuel injector into intake manifold.
b. Tighten the bolts to specification in the numerical order as shown.
CAUTION:
After properly connecting fu el tube assembly to injector
and fuel hose, check co nnection for fuel leaks.
4. Connect the fuel hose quick connector.
a. Make sure no foreign substances are deposited in and around the fuel tube and quick connector, and there is no damage to them.
b. Thinly apply new engine oil around the fuel tube tip end. Fuel tube side : Black
Nozzle side : Green
AWBIA1262GB
AWBIA1261GB
Revision: November 20132014 Altima NAM

EM-44
< REMOVAL AND INSTALLATION >[QR25DE]
FUEL INJECTOR AND FUEL TUBE
c. Align center to insert quick connector straight onto fuel tube.
d. Insert fuel tube into quick connector (1) until the top spool (B) on fuel tubes is inserted completely and the second level spool (C)
is positioned slightly below the quick connector bottom end.
CAUTION:
• Hold at position (A) as show n, when inserting the fuel
tube into the quick connector.
• Carefully align to center to avoid inclined insertion to pre-
vent damage to the O-ring inside the quick connector.
• Insert the fuel tube until you hear a “click” sound and
actually feel the engagement.
• To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.
• Do not reuse O-ring.
e. Before clamping the fuel hose with the hose clamp, pull the quick connector hard by hand, holding at the
(A) position, as shown. Make sure it is completely engaged (connected) so that it does not come off of the
fuel tube.
NOTE:
Recommended pulling force is 50 N (5.1 kg, 11.2 lb).
f. Install quick connector cap (1) over fuel hose side (B) and fuel tube side (A).
NOTE:
Direct arrow mark on quick connector cap (1) to fuel hose side.
5. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at connections as follows:
1. Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections. • Perform procedures for “Throttle Valve Closed Posi tion Learning” after finishing repairs. Refer to EC-
178, "Work Procedure".
• If electric throttle control actuator is replaced, perform procedures for “Idle Air Volume Learning” after
finishing repairs. Refer to EC-179, "Work Procedure"
.
WARNING:
Do not touch engine immediately after stopping as engine is extremely hot.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
ALBIA0896GB
ALBIA0890GB
Revision: November 20132014 Altima NAM