Infiniti G37 Coupe. Manual — part 436
DLN-58
< DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R200]
DRIVE PINION
12. Select the correct pinion height adjusting washer.
13. Remove the J-34309 differential shim selector tool from the final
drive housing. Then disassemble to retrieve the pinion bearings.
DRIVE PINION RUNOUT
1.
Set a dial indicator (A) vertically to the tip of the drive pinion.
2.
Rotate drive pinion to check for runout.
3.
If the runout value is outside of the limit, possible causes are an
assembly malfunction of drive pinion and pinion bearing and
malfunction of pinion bearing. Check for these items and repair if
necessary.
Inspection After Disassembly
INFOID:0000000001714239
Clean up the disassembled parts. Then, inspect if the parts are worn or damaged. If so, follow the measures
below.
Pinion head height number
Add or remove from the standard pinion height ad-
justing washer thickness measurement
−
6
−
5
−
4
−
3
−
2
−
1
0
+1
+2
+3
+4
+5
+6
Add 0.06 mm (0.0024 in)
Add 0.05 mm (0.0020 in)
Add 0.04 mm (0.0016 in)
Add 0.03 mm (0.0012 in)
Add 0.02 mm (0.0008 in)
Add 0.01 mm (0.0004 in)
Use the selected washer thickness
Subtract 0.01 mm (0.0004 in)
Subtract 0.02 mm (0.0008 in)
Subtract 0.03 mm (0.0012 in)
Subtract 0.04 mm (0.0016 in)
Subtract 0.05 mm (0.0020 in)
Subtract 0.06 mm (0.0024 in)
SPD205A
Limit
Drive pinion runout
: Refer to
.
JSDIA0032ZZ
Content
Conditions and Measures
Hypoid gear
• If the gear teeth do not mesh or line-up correctly, determine the cause and adjust or replace as nec-
essary.
• If the gears are worn, cracked, damaged, pitted or chipped (by friction) noticeably, replace with new
drive gear and drive pinion as a set.
Bearing
• If any chipped (by friction), pitted, worn, rusted or scratched mark, or unusual noise from the bearing
is observed, replace as a bearing assembly (as a new set).
Side gear and pinion mate
gear
• If any cracks or damage on the surface of the tooth is found, replace.
• If any worn or chipped mark on the contact sides of the thrust washer is found, replace.
Side gear thrust washer and
pinion mate thrust washer
• If it is chipped (by friction), damaged, or unusually worn, replace.
DRIVE PINION
DLN-59
< DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R200]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
Oil seal
• Whenever disassembled, replace.
• If wear, deterioration of adherence (sealing force lips), or damage is detected on the lips, replace them.
Differential case
• If any wear or crack on the contact sides of the differential case is found, replace.
Companion flange
• If any chipped mark (about 0.1 mm, 0.004 in) or other damage on the contact sides of the lips of the
companion flange is found, replace.
Content
Conditions and Measures
DLN-60
< SERVICE DATA AND SPECIFICATIONS (SDS)
[REAR FINAL DRIVE: R200]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specification
INFOID:0000000001714245
Drive Gear Runout
INFOID:0000000001714246
Unit: mm (in)
Differential Side Gear Clearance
INFOID:0000000001714247
Unit: mm (in)
Preload Torque
INFOID:0000000001714248
Unit: N·m (kg-m, in-lb)
Backlash
INFOID:0000000001714249
Unit: mm (in)
Drive Pinion Runout
INFOID:0000000001714250
Unit: mm (in)
Applied model
2WD
VQ37VHR
A/T
Final drive model
R200
Gear ratio
3.692
Number of teeth (Drive gear/Drive pinion)
48/13
Oil capacity (Approx.)
(US pt, lmp pt)
1.4 (3, 2-1/2)
Number of pinion gears
2
Drive pinion adjustment spacer type
Collapsible
Item
Limit
Drive gear back face runout
0.05 (0.0020)
Item
Standard
Side gear backlash (Clearance between side gear and differential
case)
0.2 (0.008) or less
(Each gear should rotate smoothly without excessive resistance
during differential motion.)
Item
Standard
Pinion bearing (P
1
)
2.65 – 3.23 (0.27 – 0.32, 24 – 28)
Side bearing (P
2
)
0.20 – 0.52 (0.02 – 0.05, 2 – 4)
Side bearing to pinion bearing (Total preload)
(Total preload = P
1
+ P
2
)
2.84 – 3.75 (0.29 – 0.38, 26 – 33)
Item
Standard
Drive gear to drive pinion gear
0.10 – 0.15 (0.0039 – 0.0059)
Item
Limit
Tip of drive pinion runout
0.8 (0.031)
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-61
< SYMPTOM DIAGNOSIS >
[REAR FINAL DRIVE: R200V]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000001714252
M/T MODELS
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
A/T MODELS
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
Reference
NVH in DLN
section.
NVH in F
AX, RAX
, FSU
and RSU sections.
NVH in WT
se
ct
io
n.
NVH in WT
se
ct
io
n.
NVH in F
AX and RAX section.
NVH in BR section.
NVH in ST section.
Possible cause and SUSPECTED PARTS
Ge
ar t
o
o
th ro
ug
h
Gea
r co
nt
ac
t im
p
rope
r
T
o
ot
h s
u
rf
ac
es
worn
Ba
ckl
a
s
h
i
n
corre
ct
Com
p
a
n
ion
fla
n
g
e
e
x
ce
ss
iv
e ru
no
ut
Gea
r oi
l i
m
p
rop
er
PROPELLER SHAF
T
AXLE AND SUSPE
NSION
TIRES
ROA
D
WHEEL
D
R
IV
E
SH
AF
T
BRAKES
STEERI
N
G
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
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