Infiniti G35 (V35) Sedan. Manual — part 308
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< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000000956919
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
Reference
SUSPECTED PARTS (Possible cause)
CLUTCH P
E
DAL (I
ns
pe
cti
o
n
a
nd
ad
jus
tm
e
n
t)
CLUTCH LINE (A
ir in line)
MAS
T
ER CYLINDER PIS
T
ON CUP (Damaged)
ENGINE MOU
N
TING (Loose)
CSC (Con
ce
nt
ric
Sla
v
e
Cy
lin
de
r) (W
orn
, di
rty
or
da
ma
ge
d)
CLUTCH DISC (Out
of
true)
CLUTCH DISC (Runou
t i
s
ex
ce
ssi
v
e
)
CLUTCH DISC (Lining
broken)
CLUTCH DISC (Dirty or burned)
CLUTCH DISC (Oily)
CLUTCH DISC (W
orn
out)
CLUTCH DISC (Hardened)
CLUTCH DISC (Lack
of
sp
lin
e
gre
a
s
e)
DI
APHRAGM SPRI
N
G (Dam
ag
ed
)
DIAPHRAGM
SPRING (Ou
t of
ti
p a
lig
nm
en
t)
PRESSURE P
L
A
T
E (Di
s
torti
on)
FL
YWHEE
L
(Distortion)
Symptom
Clutch grabs/chatters
1
2
2
2
2
2
Clutch pedal spongy
1
2
2
Clutch noisy
1
Clutch slips
1
2
2
3
4
5
Clutch does not disengage
1
2
3
4
4
4
4
4
4
4
5
5
6
PRECAUTIONS
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< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Service Notice or Precautions for Clutch
INFOID:0000000000956920
CAUTION:
• Recommended clutch fluid is brake fluid “DOT 3”. Refer to
MA-10, "Fluids and Lubricants"
• Never reuse drained clutch fluid.
• Be careful not to splash clutch fluid on painted areas.
• When removing clutch tube, use a flare nut wrench.
• When installing clutch tube, use a flare nut torque wrench.
• Use new clutch fluid to clean or wash all parts of master cylin-
der.
• Never use mineral oils such as gasoline or kerosene. It will
ruin the rubber parts of the hydraulic system.
• If transmission assembly is removed from the vehicle, always
replace CSC (Concentric Slave Cylinder) body and CSC tube.
Return CSC body insert to original position to remove trans-
mission assembly. Dust on clutch disc sliding parts may dam-
age seal of CSC body and may cause clutch fluid leakage.
• Do not disassemble CSC body.
WARNING:
After cleaning clutch disc, wipe it with a dust collector. Do not use compressed air.
SBR686C
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< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000000956921
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
INFOID:0000000000956922
Tool number
(Kent-Moore No.)
Tool name
Description
ST20050240
(
—
)
Diaphragm adjusting wrench
Adjusting unevenness of diaphragm spring of
clutch cover
ST20670000
(
—
)
Clutch aligning bar
a: 15 mm (0.59 in) dia.
b: 23 mm (0.91 in) dia.
Installing clutch disc
ZZA0508D
ZZA1178D
Tool name
Description
1. Flare nut crowfoot
a: 10 mm (0.39 in)
2. Torque wrench
Installing clutch tube
Power tool
Loosening bolts and nuts
S-NT360
PBIC0190E
CLUTCH PEDAL
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< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
CLUTCH PEDAL
Inspection and Adjustment
INFOID:0000000000956923
INSPECTION
1.
Make sure that clevis pin (1) floats freely in the bore of clutch
pedal. It should not be bound by clevis or clutch pedal.
a.
If clevis pin is not free, make sure that ASCD clutch switch (2) is
not applying pressure to clutch pedal causing clevis pin to bind.
To adjust, loosen lock nut (3) and turn ASCD clutch switch.
b.
Tighten lock nut. Refer to
c.
Make sure that clevis pin floats in the bore of clutch pedal. It
should not be bound by clutch pedal.
d.
If clevis pin is still not free, remove clevis pin and check for
deformation or damage. Replace clevis pin if necessary. Leave
clevis pin removed for step 2.
2.
Check clutch pedal stroke for free range of movement.
a.
With clevis pin removed, manually move clutch pedal up and down to determine if it moves freely.
b.
If any sticking is found, replace related parts (bushing, clutch pedal assembly, etc.). Reassemble clutch
pedal and again make sure that clevis pin floats freely in the bore of clutch pedal.
3.
Check clutch hydraulic and system components (clutch master cylinder, CSC, etc.) for sticking or binding.
a.
If any sticking or binding is found, repair or replace related parts as necessary.
b.
If hydraulic system repair was necessary, bleed the clutch hydraulic system. Refer to
ADJUSTMENT
1.
Adjust clutch interlock switch (1) position so that clearance
between stopper rubber (2) and thread end (A) of clutch inter-
lock switch with clutch pedal depressed is clearance “C”.
2.
After adjusting clearance “C”, tighten lock nut (3) to the specified
torque. Refer to
JPDIB0001ZZ
Clearance “C”
: Refer to
.
JPDIB0002ZZ
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