2014 NISSAN TEANA crank

EM-6
< PRECAUTION >[QR25DE]
PRECAUTIONS
4. Cover the serrated end of the valve with a large shop towel (A).
Strike the valve face end with a hammer, separating it into two
pieces.
5. Fill a bucket, such as a 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can, with at least 10 (2-5/8 US gal, 2-1/4 lmp gal) of water.
Carefully place the already cut (serrated) valves into the water
one-at-a-time using a set of large tweezers and quickly move
away at least 2.7 m (9 ft).
6. The valves should be placed in a standing position as shown in the illustration to allow complete reaction. After the bubbling
action has subsided, additional valves can be placed into the
bucket allowing each subsequent chemical reaction to subside.
However, no more than 8 valves should be placed in the same
10 (2-5/8 US gal, 2-1/4 lmp gal) amount of water. The com-
plete chemical reaction may take as long as 4 to 5 hours.
Remove the valves using a set of large tweezers after the chem-
ical reaction has stopped. Afterwards, valves can be disposed
as ordinary scrap.
Precaution for Assembly and InstallationINFOID:0000000009460458
• Use torque wrench to tighten bolts or nuts.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
follow the specifications.
• Always replace the old with a new gas ket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
• Bleed the air trapped within the system after draining the coolant.
• Before starting engine, apply fuel pressure to fuel li nes with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage or rattles.
Parts Requiring Angular TighteningINFOID:0000000009460459
• Use an angle wrench for the final tightening of the following engine parts.
- Cylinder head bolts
- Lower cylinder block bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000009460460
REMOVAL OF LIQUID GASKET
JPBIA4966ZZ
A : Bucket [Such as 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can]
JPBIA4967ZZ
Revision: November 20132014 Altima NAM

PREPARATIONEM-9
< PREPARATION > [QR25DE]
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EM
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KV10107902
(J-38959)
Valve oil seal puller Removing valve oil seal
KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 (0.79) dia. d: 8 (0.31) dia.
b: 13 (0.51) dia. e: 10.7 (0.421) dia.
c: 10.3 (0.406) dia. f: 5 (0.20) dia.
Unit: mm (in)
—
(J-39386)
Valve oil seal drift Installing valve oil seal
EM03470000
(J-8037)
Piston ring compressor Installing piston assembly into cylinder bore
ST16610001
(J-23907)
Pilot converter puller Removing crankshaft pilot converter
16441 6N210
(J-45488)
Quick connector release Removing fuel tube quick connectors in en-
gine room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210)
KV10117100
(J-36471-A)
Heated oxygen sensor wrench Loosening or tightening heated oxygen sen-
sor
For 22 mm (0.87 in) hexagon nut
Tool number
(TechMate No.)
Tool name Description
S-NT011
S-NT603
NT024
S-NT044
S-NT045
PBIC0198E
NT379
Revision: November 20132014 Altima NAM

EM-10
< PREPARATION >[QR25DE]
PREPARATION
Commercial Service Tool
INFOID:0000000009460462
KV991J0050
(J-44626)
Air fuel ratio (A/F) sensor wrench Loosening or tightening air fuel ratio (A/F)
sensor 1
KV11105210
(J-44716)
Stopper plate Holding drive plate and flywheel static
—
(J-46535)
Drive belt tension releaser Releasing drive belt tension
Tool number
(TechMate No.)
Tool name Description
LEM054
ZZA0009D
WBIA0536E
Tool name
Description
Tube presser Pressing the tube of liquid gasket
Pulley holder Removing and installing crankshaft pulley
(Holding crankshaft pulley)
a: 68 mm (2.68 in) dia.
b: 8 mm (0.31 in) dia.
Crank puller Removing crankshaft pulley
S-NT052
NT628
ZZA0010D
Revision: November 20132014 Altima NAM

EM-14
< SYMPTOM DIAGNOSIS >[QR25DE]
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
Use the Chart Below to Help You Find the Cause of the Symptom
INFOID:0000000009460464
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
1. Valve mechanism 2. Intake and exhaust valve 3. Water pump
4. Timing chain 5. Drive belt 6. Rotation mechanism
A. Tappet noise B. Camshaft bearing noise C. Water pump noise
D. VTC noise E. Timing chain and chain tensioner noiseF. Drive belt noise (slipping)
G. Main bearing noise H. Connecting rod bearing noise J. Piston pin noise
K. Piston slap noise
Location of noise Typ e of
noise Operating condition of engine
Source of noise Check item
Refer-
ence page
Before
warm-
up After
warm-
up When
start-
ing When
idling When
racing While
driving
Top of en-
gine
Rocker
cover
Cylinder
head Ticking or
clicking CA—AB—
Tappet
noise Valve clearance
EM-23
Rattle C A — A B C Camshaft
bearing
noise Camshaft journal clear-
ance
Camshaft runout EM-47EM-47
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan Slap or
knock —A—BB—
Piston pin
noise Piston and piston pin
clearance
Connecting rod bushing
clearance EM-96
EM-96
Slap or
rap A——BBA
Piston
slap noise Piston-to-bore clear-
ance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion EM-96EM-96
EM-96
EM-96
Knock A B C B B B
Connect-
ing rod
bearing
noise Connecting rod bushing
clearance (Small end)
Connecting rod bearing
clearance (Big end) EM-96EM-96
Knock A B — A B C
Main bear-
ing noise Main bearing oil clear-
ance
Crankshaft runout EM-96EM-96
Front of
engine
Timing
chain cov-
er Tapping or
ticking AA—BBB Timing
chain and
chain ten-
sioner
noise Timing chain cracks
and wear
Timing chain tensioner
operation EM-62
Revision: November 20132014 Altima NAM

DRIVE BELTSEM-19
< PERIODIC MAINTENANCE > [QR25DE]
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DRIVE BELTS
Exploded ViewINFOID:0000000009460467
Checking Drive BeltsINFOID:0000000009460468
WARNING:
Inspect the drive belt only when the engine is stopped.
1. Visually check entire drive belt for wear, damage or cracks.
2. Check that the drive belt auto-tensioner indicator is within the possible use range.
NOTE:
• When new drive belt is installed, the drive belt aut o-tensioner indicator should be within the new drive
belt range.
• Check the drive belt auto-tensioner indicator when the engine is cold.
3. If the drive belt auto-tensioner indicator is out of the possible use range or belt is damaged, replace drive
belt.
Tension AdjustmentINFOID:0000000009460469
Belt tension is not manually adjustable, it is aut omatically adjusted by the drive belt auto-tensioner.
Removal and InstallationINFOID:0000000009460470
REMOVAL
1. Remove the fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
1. Generator pulley 2. Water pump pulley 3. Drive belt auto-tensioner
4. Crankshaft pulley 5. A/C compressor pulley 6. Drive belt retainer boss
A. View A B. New drive belt range C. Possible use range
D. Indicator (notch)
AWBIA1309GB
Revision: November 20132014 Altima NAM

EM-20
< PERIODIC MAINTENANCE >[QR25DE]
DRIVE BELTS
2. Securely hold the hexagonal part (A) of drive belt auto-tensioner
(1) using suitable tool, and move in the direction of arrow (loos-
ening direction of tensioner).
WARNING:
Avoid placing hand in a locatio n where pinching may occur
if the holding tool accidentally comes off.
3. Insert a rod approximately 6 mm (0.24 in) in diameter through the rear of the drive belt auto-tensioner into retaining boss (B) to
lock drive belt auto-tensioner pulley.
NOTE:
Leave drive belt auto-tensioner pulley arm locked until drive belt
is installed again.
4. Loosen drive belt from drive belt auto-tensioner and then remove it from the other pulleys.
INSTALLATION
1. Install the drive belt onto all of the pulleys except for the drive belt auto-tensioner. Then install the drive
belt onto drive belt auto-tensioner last.
CAUTION:
Confirm belts are completely set on the pulleys.
2. Release drive belt auto-tensioner, and apply tension to drive belt.
WARNING:
Avoid placing hand in a location where pinching m ay occur if the holding tool accidentally comes
off.
3. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
4. Confirm the indicator is within the possible use range. Refer to EM-19, "Checking Drive Belts"
.
5. Install the fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
Removal and Installation of Drive Belt Auto-tensionerINFOID:0000000009460471
REMOVAL
CAUTION:
The complete drive belt auto-tensioner must be replaced as a unit, including the pulley.
1. Remove the front RH wheel and tire assembly. Refer to WT-55, "Adjustment"
.
2. Remove the fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
ALBIA0879GB
1. Drive belt auto-tensioner
AWBIA1381ZZ
Revision: November 20132014 Altima NAM

CAMSHAFT VALVE CLEARANCEEM-23
< PERIODIC MAINTENANCE > [QR25DE]
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CAMSHAFT VALVE CLEARANCE
Camshaft valve clearanceINFOID:0000000009460474
• Perform this inspection as follows after removal, inst
allation, or replacement of the camshaft or any valve-
related parts, or if there are any unusual engine conditions due to changes in valve clearance over time
(starting, idling, and/or noise).
1. Remove the fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
2. Remove the rocker cover using power tool. Refer to EM-45, "Removal and Installation"
.
3. Turn crankshaft pulley clockwise when viewed from front to align TDC identification mark (B) with timing indicator (A).
NOTE:
Do not confuse TDC mark (B) with paint marks (C).
4. At this time, check that the both intake and exhaust cam lobes of No. 1 cylinder face outside.
• If they do not face outside, turn crankshaft pulley once more.
5. Measure valve clearances with a feeler gauge at locations marked (X) in the table below.
• No.1 cylinder compression TDC.
ALBIA0840GB
ALBIA0882GB
Cylinder No.1 (A) No.2 (B) No.3 (C) No.4 (D)
Va l v e I N T (E)EXH
(F) INT
(E) EXH
(F) INT
(E) EXH
(F) INT
(E) EXH
(F)
Measure x x x x
: Engine frontALBIA0886GB
Revision: November 20132014 Altima NAM

EM-24
< PERIODIC MAINTENANCE >[QR25DE]
CAMSHAFT VALVE CLEARANCE
• Use a feeler gauge to measure the clearance between valve
lifter and camshaft.
6. Turn crankshaft one complete revolution (360 °) and align mark on crankshaft pulley with pointer.
7. Measure valve clearances with a feeler gauge at locations marked (X) in the table below.
• No.4 cylinder compression TDC.
If out of specifications, make necessary adjustment.
ADJUSTMENT
NOTE:
• Perform adjustment by selecting the valve lifter with the correct head thickness.
1. Remove camshaft. Refer to EM-47, "Removal and Installation"
.
2. Remove the valve lifters at the locations that are outside the standard.
3. Measure the center thickness of the removed valve lifters with a micrometer (A).
4. Use the equation below to calculate valve lifter thickness for replacement. • Valve lifter thickness calculation.t = t1 + (C1 - C2)
t = Thickness of replacement valve lifter.
t1 = Thickness of removed valve lifter.
C1 = Measured valve clearance.
C2 = Standard valve clearance. Valve clearance: Refer to
EM-111, "Standard and Lim-
it".
SEM139D
Cylinder No.1 (A) No.2 (B) No.3 (C) No.4 (D)
Va l v e I N T (E)EXH
(F) INT
(E) EXH
(F) INT
(E) EXH
(F) INT
(E) EXH
(F)
Measure x x x x
: Engine frontALBIA0884GB
PBIC3195J
Revision: November 20132014 Altima NAM