Nissan 350Z Workshop Maunual 2005 (15) PDF | Page 13

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
EM-13
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Revision: 2005 August 2005 350Z
Use the Chart Below to Help You Find the Cause of the Symptom. ABS009YB
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 related
Location
of noise
Type 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
engine
Rocker
cover
Cylinder
head
Ticking or
clicking
CA?AB?
Tappet
noise
Valve clearance EM-113
Rattle C A ? A B C
Camshaft
bearing
noise
Camshaft runout
Camshaft journal oil
clearance
EM-104
EM-105
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan
Slap or
knock
?A?BB?
Piston pin
noise
Piston to piston pin oil
clearance
Connecting rod bush-
ing oil clearance
EM-158
EM-161
Slap or
rap
A??BBA
Piston
slap noise
Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion
EM-163
EM-159
EM-160
EM-160
Knock ABCBBB
Connect-
ing rod
bearing
noise
Connecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearance
EM-161
EM-165
Knock A B ? A B C
Main
bearing
noise
Main bearing oil clear-
ance
Crankshaft runout
EM-166
EM-165
Front of
engine
Timing
chain
case
Tapping or
ticking
AA?BBB
Timing
chain and
chain ten-
sioner
noise
Timing chain cracks
and wear
Timing chain tensioner
operation
EM-68
EM-59
Front of
engine
Squeak-
ing or fizz-
ing
AB?B?C
Drive belts
(Sticking
or slip-
ping)
Drive belts deflection
EM-14
CreakingABABAB
Drive belts
(Slipping)
Idler pulley bearing
operation
Squall
Creak
AB?BAB
Water
pump
noise
Water pump operation
CO-23,
"WATER
PUMP"

Nissan 350Z Workshop Maunual 2005 (15) Summary of Content

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGEM-13CDEFGHIJKLMAEMRevision: 2005 August 2005 350ZUse the Chart Below to Help You Find the Cause of the Symptom. ABS009YB1. 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 relatedLocation of noiseType of noiseOperating condition of engineSource of noiseCheck itemRefer-ence pageBefore warm-upAfter warm-upWhen start-ingWhen idlingWhen racingWhile drivingTop of engineRocker coverCylinder headTicking or clickingCAABTappet noiseValve clearance EM-113Rattle C A A B CCamshaft bearing noiseCamshaft runoutCamshaft journal oil clearanceEM-104EM-105Crank-shaft pul-leyCylinder block (Side of engine)Oil panSlap or knockABBPiston pin noisePiston to piston pin oil clearanceConnecting rod bush-ing oil clearanceEM-158EM-161Slap or rapABBAPiston slap noisePiston to cylinder bore clearancePiston ring side clear-ancePiston ring end gapConnecting rod bend and torsionEM-163EM-159EM-160EM-160Knock ABCBBBConnect-ing rod bearing noiseConnecting rod bush-ing oil clearanceConnecting rod bear-ing oil clearanceEM-161EM-165Knock A B A B CMain bearing noiseMain bearing oil clear-anceCrankshaft runoutEM-166EM-165Front of engineTiming chain caseTapping or tickingAABBBTiming chain and chain ten-sioner noiseTiming chain cracks and wearTiming chain tensioner operationEM-68EM-59Front of engineSqueak-ing or fizz-ingABBCDrive belts (Sticking or slip-ping)Drive belts deflectionEM-14CreakingABABABDrive belts (Slipping)Idler pulley bearing operationSquallCreakABBABWater pump noiseWater pump operationCO-23, "WATER PUMP"