2014 NISSAN TEANA torque

EM-58
< REMOVAL AND INSTALLATION >[QR25DE]
VALVE TIMING CONTROL
VALVE TIMING CONTROL
Exploded ViewINFOID:0000000009460495
Intake Valve Timing Intermediate Lock Cont
rol Solenoid Valve, Intake Valve Timing
Control Solenoid Valve, a nd Exhaust Valve Timing Control Solenoid Valve
INFOID:0000000009460496
REMOVAL
1. Disconnect the battery negative terminal. Refer to PG-73, "Removal and Installation (Battery)".
2. Remove the core support cover. Refer to EXT-17, "Removal and Installation"
.
3. Remove the front air duct. Refer to EM-29, "Removal and Installation"
.
4. Remove the engine room cover. Refer to EM-28, "Removal and Installation"
.
5. Support the engine using a suitable jack.
6. Remove the RH engine mounting support bracket. Refer to EM-84, "Removal and Installation"
.
7. Remove the RH engine mount torque rod. Refer to EM-84, "Removal and Installation"
.
8. Disconnect intake valve timing intermediate lock control solenoid valve, intake valve timing control sole- noid valve, and exhaust valve timing control solenoid valve connectors.
9. Remove intake valve timing intermediate lock control solenoid valve, intake valve timing control solenoid valve, and exhaust valve timing control solenoid valve bolts.
10. Remove intake valve timing intermediate lock control solenoid valve, intake valve timing control solenoid valve, exhaust valve timing control solenoid valve from valve timing control cover.
11. Remove O-rings from intake valve timing intermediate lock control solenoid valve, intake valve timing con- trol solenoid valve, and exhaust valve timing control solenoid valve.
CAUTION:
Do not reuse O-rings.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Lubricate O-rings with clean en gine oil before installing.
1. Valve timing cover 2. O-rings 3. Intake valve timing intermediate
lock control solenoid valve
4. Intake valve timing control sole- noid valve 5. Exhaust valve timing control so-
lenoid valve
AWBIA1319GB
Revision: November 20132014 Altima NAM

TIMING CHAINEM-69
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d. Tighten front cover bolts in the numerical order shown.
e. After all bolts are tightened, retighten them to the specified torque.
CAUTION:
Wipe off excess sealant leaking at the surface for installing
the oil pan.
10. Install the chain guide between the camshaft sprockets.
11. Install valve timing control cover. Refer to EM-59, "Valve Timing Control Cover"
.
12. Insert crankshaft pulley by aligning with crankshaft key. • Tap its center with a plastic hammer to insert.
• Do not tap the crankshaft pulley outer diameter.
13. Tighten crankshaft pulley bolt. • Secure crankshaft pulley with tool to tighten the bolt.
• Perform angle tightening with the following procedure:
a. Apply new engine oil to threads and seat surfaces of bolts.
b. Tighten to initial specifications:
c. Apply a paint mark (A) on the front cover, mating with any one of six easy to recognize stamp marks on bolt flange (B).
d. Turn crankshaft pulley bolt an additional 60 degrees +6/-0 degrees.
NOTE:
Check that the assembled unit does not interfere with adjacent
components by turning the crankshaft in the tightening direction.
14. Installation of the remaining components is in the reverse order of removal.Front cover bolts
Bolts 6, 10, 12 : 49 N·m (5.0 kg-m, 36 ft-lb)
Bolts (all remaining) : 12.7 N·m (1.3 kg-m, 9 ft-lb)
(A) : Dowel pin
ALBIA0944ZZ
Crankshaft bolt (1) : 42.1 N·m (4.3 kg-m, 31 ft-lb)
ALBIA0862GB
Revision: November 20132014 Altima NAM

ENGINE ASSEMBLYEM-83
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UNIT REMOVAL AND INSTALLATION
ENGINE ASSEMBLY
Exploded ViewINFOID:0000000009460507
AWBIA1326GB
1. RH engine mount torque rod 2. RH engine support bracket 3. RH engine mounting insulator
4. RH engine mounting bracket 5. Transmission mounting bracket 6. LH engine mounting bracket
7. LH engine mounting insulator 8. Rear engine mount torque rod 9. Rear engine mount torque rod bracket
A. 40 N·m (4.1 kg-m, 30 ft-lb) B. 41 N·m (4.2 kg-m, 30 ft-lb) C. 45 N·m (4.6 kg-m, 33 ft-lb)
D. 50 N·m (5.1 kg-m, 37 ft-lb) E. 60 N·m (6.1 kg-m, 44 ft-lb) F. 85 N·m (8.7 kg-m, 63 ft-lb)
Revision: November 20132014 Altima NAM

EM-84
< UNIT REMOVAL AND INSTALLATION >[QR25DE]
ENGINE ASSEMBLY
Removal and Installation
INFOID:0000000009460508
WARNING:
• Place chocks at the front and back of the rear wheels.
• For engines not equipped with slin gers, attach proper slingers and bolts as described in the Parts
Catalog.
CAUTION:
• Do not start working until the exh aust system and coolant are cool.
• If items or work required are not covered by the en gine main body section, follow the applicable pro-
cedures.
• Use the correct supporting points for lifting and jacking. Refer to GI-33, "Garage Jack and Safety
Stand".
• In removing the drive shaft, be careful not to damage the grease seals on the transaxle.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove engine cover using power tool. Refer to EM-28, "Removal and Installation".
2. Release fuel pressure. Refer to EC-182, "Work Procedure"
.
3. Disconnect the negative and positive battery terminal. Refer to PG-73, "Removal and Installation (Bat-
tery)".
4. Disconnect the fuel rail at the fuel hose quick connector (engine side). Refer to EM-41, "Removal and
Installation".
5. Drain the engine coolant. Refer to CO-12, "Changing Engine Coolant"
.
6. Remove the engine under cover. Refer to EXT-28, "Removal and Installation"
.
7. Remove hood assembly. Refer to DLK-170, "HOOD ASSEMBLY : Removal and Installation"
.
8. Remove core support cover.
9. Remove the front air duct and air cleaner case assembly. Refer to EM-29, "Removal and Installation"
.
10. Remove battery and battery tray. Refer to PG-74, "Removal and Installation (Battery Tray)"
.
11. Remove cowl top. Refer to EXT-24, "Removal and Installation"
.
12. Remove strut brace. Refer to FSU-19, "Exploded View"
.
13. Disconnect EVAP hose and vacuum hose from intake manifold.
14. Remove upper and lower radiator hoses (engine side).
15. Remove CVT cooler lines.
16. Disconnect engine room harness connecto r at the CVT and ECM connectors.
CAUTION:
Protect the harness connector with plastic bags or suitable covering to help prevent damage and
intrusion of foreign mate rials into the connectors.
17. Remove the brake booster vacuum hose.
18. Disconnect the heater hoses.
19. Remove the front wheels and tires using a power tool. Refer to WT-55, "Adjustment"
.
20. Remove the fender protector side covers (RH) and (LH). Refer to EXT-26, "FENDER PROTECTOR :
Removal and Installation".
21. Remove tie rod ends from the steering knuckles. Refer to ST-36, "Removal and Installation"
.
22. Remove the power steering gear bolts and support the power steering gear. Refer to ST-36, "Exploded
View".
23. Remove rear cover plate.
24. Remove the torque converter nuts.
25. Remove the rear engine mount torque rod.
26. Remove front exhaust tube and gaskets. Refer to EX-5, "Exploded View"
.
G. 90 N·m (9.2 kg-m, 66 ft-lb) H. 103 N·m (11 kg-m, 76 ft-lb) J. Follow installation procedure
Front
Revision: November 20132014 Altima NAM

ENGINE ASSEMBLYEM-85
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27. Remove the LH and RH drive shafts. Refer to
FAX-10, "Removal and Installation (LH)", FAX-12, "Removal
and Installation (RH)".
28. Remove the drive belt. Refer to EM-19, "Removal and Installation"
.
29. Remove the front suspension member. Refer to FSU-20, "Removal and Installation"
.
30. Remove the A/C compressor with piping connected and support using suitable wire.
31. Disconnect the transaxle shift controls. Refer to TM-407, "Removal and Installation"
.
32. Install engine slingers into the rear of the cylinder head (A) and front engine mounting bracket holes (B).
• Use engine mounting bolt holes for front slinger.
• Use the holes in the rear of the cylinder head for the rear
slinger.
33. Support engine and transaxle assembly with engine lifti ng equipment from the top with the vehicle raised
on a hoist.
34. Remove the RH engine mount torque rod, RH engine support bracket and RH engine mounting insulator and bracket.
35. Remove LH transaxle mounting insulator through-bolts.
36. Lower the engine and transaxle assembly from the engine compartment using suitable tool.
CAUTION:
• Before and during this procedure, alw ays check if any harnesses are left connected.
• Avoid any damage to, or any oil/grease smearing or spills onto the engine mounting insulators.
37. Remove the starter motor. Refer to STR-22, "QR25DE : Removal and Installation"
.
38. Remove engine and transaxle harness.
39. Separate engine and transaxle. Refer to TM-206, "Exploded View"
.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
Tighten the transmission bolts to specification. Refer to TM-407, "Removal and Installation"
.
• Do not allow oil to get on mounting insulators. Be careful not to damage mounting insulators.
• If parts have a direction mark (arrow) this indicates front of the vehicle, and the parts must be installed
according to the identification mark.
• Install the RH engine mounting bracket bolts in the following steps:
- First install bolts (A) and (B) loosely.
- Install and tighten the five RH engine mounting bracket bolts to specification in the order as shown.
- : Front
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "FOR USA AND CANADA : 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. Slinger bolts (A) : 28 N·m (2.8 kg-m, 21 ft-lb)
Slinger bolts (B) : 48 N·m (4.9 kg-m, 35 ft-lb))
AWBIA1363ZZ
RH engine mounting bracket bolt : 48.2 N·m (4.9 kg-m, 36 ft-lb)
ALBIA0541ZZ
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-91
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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22. Remove the crankshaft (A).
CAUTION:
• Do not damage or deform the signal plate (B) while
mounted on the crankshaft.
• When setting the crankshaft on a flat surface, use a block of wood to avoid interferen ce between the signal plate
and the surface.
• Do not remove signal plate unless it is necessary.
23. Pull the rear oil seal off of the rear end of the crankshaft. CAUTION:
Do not damage the crankshaft or cylinder block when removing the rear oil seal.
NOTE:
When replacing the rear oil seal without removing the cy linder block, use a suitable tool to pull it out from
between crankshaft and block.
24. Remove the main bearings and thrust bearings from the cylinder block and lower cylinder block. CAUTION:
Identify and number the bearings, if reusing th em, so that they are assembled in the same position
and direction.
25. Remove oil jets (A) if necessary.
ASSEMBLY
1. Using compressed air, clean out the coolant and oil passages in the cylinder block, the cylinder bore and
the crankcase to remove any foreign material.
WARNING:
Use approved safety glasses to protect your eyes.
2. Install the drain plugs on the cylinder block. • Apply Silicone RTV Sealant. Use Genuine Silicone RTV Seal ant, or equivalent. Refer to
GI-21, "Recommended Chemi cal Products and Sealants"
.
• : Engine front CAUTION:
Do not reuse copper sealing washers.
AWBIA1377ZZ
: Engine front
JPBIA0686ZZ
Drain plug torque
Drain plug (A) : 54 Nm (5.5 kg-m, 40 ft-lb)
Drain plug (B) : 9.8 Nm (1.0 kg-m, 87 in-lb)
AWBIA1328GB
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-99
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• Check with connecting rod aligner. Refer to
EM-111, "Standard and
Limit".
• If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BEARING (BIG END)
• Install the connecting rod cap (1) without the connecting rod bear-
ing installed. After tightening the connecting rod bolt to the speci-
fied torque, measure the connecting rod big end inner diameter
using an inside micrometer. Refer to EM-111, "Standard and Limit"
.
CONNECTING ROD BUSHING OIL CLEARANCE (SMALL END)
Inner Diameter of Connecting Rod (Small End)
• Measure inner diameter of bushing using suitable tool (A). Refer to
EM-111, "Standard and Limit"
Outer Diameter of Piston Pin
PBIC3268J
(A) : Example
(B) : Measuring direction of inner diameter
(2) : Connecting rod
AWBIA1375ZZ
PBIC3270J
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-101
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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• Measure the distortion on the block upper face at some different
points in 6 directions using a suitable tool (A).
• If out of the distortion limit, replace the cylinder block and lower block they are machined together as an assembly.
INNER DIAMETER OF MAIN BEARING HOUSING
• Install the main bearing caps with the main bearings removed andtighten the bolts to the specified torque. Refer to EM-88, "Disas-
sembly and Assembly".
• Using a bore gauge (A), measure the inner diameter of the main
bearing housing.
• If out of the standard, replace the cylinder block and lower cylinder block assembly.
NOTE:
These components cannot be replaced as a single unit because
they were processed together.
PISTON TO CYLINDER BORE CLEARANCE
Inner Diameter of Cylinder Bore
• Using a bore gauge, measure cylinder bore for wear, out-of-round and taper at 6 different points on each cylinder. (Y and X directions
at C, D, and E). The Y axis is in the longitudinal direction of the
engine.
NOTE:
When determining cylinder bore grade, measure cylinder bore at
(D) position. Refer to EM-111, "Standard and Limit"
.
• If there are scratches and/or seizure on t he cylinder inner wall, hone the inner wall.
Outer Diameter of Piston
• Measure piston skirt diameter using a suitable tool (A). Refer to
EM-111, "Standard and Limit"
.
• Measure point (distance from the top): 37.5 mm (1.476 in).
Piston to Cylinder Bore Clearance
Limit : 0.1 mm (0.004 in)
AWBIA1283GB
Standard : 58.944 - 58.968 mm (2.3206 - 2.3216 in)
AWBIA1284GB
Standard : Refer to EM-111, "Standard and Limit".
Out-of-round : Difference between (Y) and (X).
Taper : Difference between (C) and (E).
Dimension (f) : 10 mm (0.39 in)
Dimension (g) : 60 mm (2.36 in)
Dimension (h) : 120 mm (4.72 in)
AWBIA1360ZZ
PBIC3272J
Revision: November 20132014 Altima NAM