Page 1817 of 2896
EM-8Revision: June 2006
PREPARATION
2007 Versa
ST16610001
(J-23907)
Pilot bushing pullerRemoving crankshaft pilot bushing
KV11103000
(—)
Pulley pullerRemoving crankshaft pulley
KV991J0050
(J-44626)
Air fuel sensor SocketLoosening or tightening air fuel ratio A/F
sensor
a: 22 mm (0.87 in)
KV10114400
(J-38365)
Heated oxygen sensor wrenchLoosening or tightening rear heated oxy-
gen sensor
a: 22 mm (0.87 in)
KV11105210
(J-44716)
Stopper plateSecuring diveplate and flywheel
KV10115600
(J-38958)
Valve oil seal driftInstalling valve oil seal
Use side A.
a: 20 (0.79) dia
b: 13 (0.51) dia.
c: 10.3 (0.406) dia
d: 8 (0.31) dia.
e: 10.7 (0.421)
f: 5 (0.20)
KV10115801
(—)
Oil filter wrenchRemoving and installing oil filter
a: 64.3 mm (2.531 in) Tool number
(Kent-Moore No.)
Tool nameDescription
NT045
NT676
LBIA0444E
NT636
ZZA0009D
S-NT603
S-NT375
Page 1818 of 2896
PREPARATION
EM-9
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
Commercial Service ToolsEBS00U6Q
(Kent-Moore No.)
Tool nameDescription
(BT-3373-F)
Belt tension gaugeChecking drive belt tension
Power toolLoosening bolts and nuts
Spark plug wrench Removing and installing spark plug
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
KV10109300
(—)
Pulley holderRemoving and installing crankshaft pulley
KV10111800
Valve guide driftRemoving and installing valve guide
AMA126
PBIC0190E
PBIC2982E
NT048
NT030
NT628
PBIC4012E
Page 1819 of 2896
EM-10Revision: June 2006
PREPARATION
2007 Versa
Valve guide reamer (1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleanerReconditioning the exhaust system threads
before installing a new oxygen sensor (Use
with anti-seize lubricant shown below.)
a: J-43897-18 (18 mm dia.) for zirconia ox-
ygen sensor
b: J-43897-12 (12 mm dia.) for titania oxy-
gen sensor
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
E20 Torx® Socket
(J-45816)Removing and installing drive plate and fly-
wheel bolts (Kent-Moore No.)
Tool nameDescription
PBIC4013E
AEM488
AEM489
LBIA0285E
Page 1820 of 2896
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
EM-11
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting — Engine NoiseEBS00T5P
WBIA0769E
Page 1821 of 2896

EM-12Revision: June 2006
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
2007 Versa
Use the Chart Below to Help You Find the Cause of the Symptom.EBS00T5Q
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.
A: Closely related B: Related C: Sometimes related —: Not related1. Piston pin noise 2. Piston slap noise 3. Main bearing noise
4. Water pump noise 5. Timing chain and tensioner noise 6. Drive belt noise (stick/slipping)
7. Tappet noise 8. Camshaft bearing noise 9. Connecting rod noise
A. Rotational mechanism B. Water pump C. Timing chain
D. Drive belt E. Crankshaft pulley F. A/C compressor
G. Water pump H. Alternator I. Tension pulley
J. Valve mechanism K. Valves
Location
of noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of
engine
Rocker
cover
Cylinder
headTick ing or
clickingCA—AB—Tappet
noiseValve clearanceEM-107
Rattle C A —ABCCamshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runoutEM-49EM-49
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock—A—BB—Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bush-
ing oil clearanceEM-95
EM-97
Slap or
rapA——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-99EM-96
EM-96
EM-97
Knock A B C B B BConnect-
ing rod
bearing
noiseConnecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearanceEM-97EM-101
Knock A B —ABCMain
bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-101EM-100
Front of
engine
Front
coverTapping or
tickingAA—BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-41
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belt
(Sticking
or slip-
ping)Drive belt deflection
EM-13
Creaking A B A B A BDrive belt
(Slipping)Idler pulley bearing
operation
Squall
CreakAB—BABWater
pump
noiseWater pump operationCO-17
Page 1822 of 2896

DRIVE BELTS
EM-13
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
DRIVE BELTSPFP:02117
ComponentsEBS00U6Z
Checking Drive BeltsEBS00U70
WA RN ING:
Be sure to perform this step when the engine is stopped.
Make sure that the indicator (notch on fixed side) of drive belt auto-tensioner is within the possible use
range (A).
NOTE:
Check the drive belt auto-tensioner indication when the engine is cold.
When new drive belt is installed, the indicator (notch on fixed side) should be within the range (B).
Visually check entire drive belt for wear, damage or cracks.
If the indicator (notch on fixed side) is out of the possible use range or belt is damaged, replace drive belt.
Tension AdjustmentEBS00U71
Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.
Removal and InstallationEBS00U72
REMOVAL
1. Hold the hexagonal part (A) of drive belt auto-tensioner (1) with
a wrench securely. Then move the wrench handle in the direc-
tion of arrow (loosening direction of tensioner).
CAUTION:
Never place hand in a location where pinching may occur if
the holding tool accidentally comes off.
2. Insert a rod such as short-length screwdriver approximately 6
mm (0.24 in) in diameter into the hole (B) of the retaining boss to
fix drive belt auto-tensioner.
3. Remove drive belt.
1. Alternator 2. Drive belt auto–tensioner 3. Crankshaft pulley
4.A/C compressor (models with A/C)
Idler pulley (models without A/C)5. Water pump 6. Drive belt
A. Possible use range B. Range when new drive belt is installed C. Indicator
PBIC3137J
PBIC3936E
Page 1823 of 2896

EM-14Revision: June 2006
DRIVE BELTS
2007 Versa
INSTALLATION
1. Hold the hexagonal part (A) of drive belt auto-tensioner (1) with
a box wrench securely. Then move the wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Never place hand in a location where pinching may occur if
the holding tool accidentally comes off.
2. Insert a rod such as short-length screwdriver approximately 6
mm (0.24 in) in diameter into the hole (B) of retaining boss to fix
drive belt auto-tensioner.
3. Install drive belt.
CAUTION:
Confirm drive belt is completely set to pulleys.
Check for engine oil, working fluid and engine coolant are not adhered to drive belt and each
pulley groove.
4. Release drive belt auto-tensioner, and apply tension to drive belt.
5. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
6. Confirm tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to
EM-13, "
Checking Drive Belts" .
ComponentsEBS00U73
Removal and Installation of Drive Belt Auto-TensionerEBS00U74
REMOVAL
1. Remove drive belt. Refer to EM-13, "Removal and Installation" .
2. Release the fixed drive belt auto-tensioner pulley.
3. Loosen bolt and remove drive belt auto-tensioner.
PBIC3936E
1. Front cover 2. Drive belt auto–tensioner 3. Idler pulley (models without A/C)
4. Bracket (models without A/C) 5. Shaft (models without A/C)
PBIC4698E
Page 1824 of 2896
DRIVE BELTS
EM-15
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
NOTE:
Use TORX socket (size T50).
4. Remove idler pulley and bracket (models without A/C).
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
When installing drive belt auto-tensioner, be careful not to interfere with water pump pulley.
If there is damage greater than peeled paint, replace drive belt auto-tensioner and/or idler pulley.