Nissan GT-R. Instruction — part 79
DLN-20
< PRECAUTION >
[FRONT FINAL DRIVE: F160A]
PRECAUTIONS
• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing
work. If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Turn the ignition switch to ACC position.
(At this time, the steering lock will be released.)
3.
Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4.
Perform the necessary repair operation.
5.
When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock
when the ignition switch is turned to LOCK position.)
6.
Perform self-diagnosis check of all control units using CONSULT.
General Precautions
INFOID:0000000009162084
CAUTION:
After finishing servicing, check that all the tools and waste are stored in a customary place.
FRONT DIFFERENTIAL GEAR OIL
DLN-21
< PERIODIC MAINTENANCE >
[FRONT FINAL DRIVE: F160A]
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PERIODIC MAINTENANCE
FRONT DIFFERENTIAL GEAR OIL
Inspection
INFOID:0000000009162089
OIL LEAKAGE
Visually check final drive assembly surrounding area for smears and leakage of defferential gear oil.
*1: When the oil does not drop
*2: When the oil drops
OIL LEVEL
• Remove filler plug (1) and gasket. Then check that oil is filled up
(A) from mounting hole for the filler plug.
CAUTION:
Never start engine while checking oil level.
• Set a gasket on filler plug (1) and install it on final drive, and then
tighten to the specified torque.
CAUTION:
Never reuse gasket.
Status
Parts
Required operation
Smears
*1
Each part on the final drive assembly
Use part cleaner or the equivalent to wipe out smeared oil. Then,
check for oil leakage.
Leakage
*2
Oil seal
Check the oil seal mounting surface and sliding surface for abnor-
malities. If it is normal, replace only oil seal. Then, check for oil
leakage.
Filler plug
Replace the filler plug gasket. Then, check for oil leakage.
Drain plug
Replace the drain plug gasket. Then, check for oil leakage.
Mating surface between Gear carrier and
rear cover.
Check the seal surface for abnormalities. If it is normal, replace
only rear cover gasket. Then, check for oil leakage.
Standard
Filler plug tightening
torque
: 35 N·m (3.6 kg-m, 26 ft-lb)
NNDID0017ZZ
DLN-22
< SERVICE DATA AND SPECIFICATIONS (SDS)
[FRONT FINAL DRIVE: F160A]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
INFOID:0000000009162112
Applied model
AWD
VR38DETT
GR6Z30A
Final drive model
F160A
Gear ratio
2.937
Number of teeth (Drive gear/Drive pinion)
47/16
Oil capacity (Approx.)
(US pt, lmp pt)
0.65 (1-3/8, 1-1/8)
Number of pinion gears
2
Drive pinion adjustment spacer type
Solid
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-23
< SYMPTOM DIAGNOSIS >
[REAR FINAL DRIVE]
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000009162118
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
NOTE:
Although operating sound may be heard from LSD while driving, this is not always a malfunction.
Reference
Thi
s
work is reco
mmended t
o
be perf
ormed by
G
T
-R cert
ified
NISSAN dealer
.
Thi
s
work is reco
mmended t
o
be perf
ormed by
G
T
-R cert
ified
NISSAN dealer
.
Thi
s
work is reco
mmended t
o
be perf
ormed by
G
T
-R cert
ified
NISSAN dealer
.
Thi
s
work is reco
mmended t
o
be perf
ormed by
G
T
-R cert
ified
NISSAN dealer
.
—
NVH in DLN
section.
NVH in F
A
X, RAX, FS
U and RSU
se
ctio
ns
.
NVH in WT
section.
NVH in WT
section.
NVH in
F
A
X an
d
RAX s
e
c
tio
n.
NVH in BR section.
NVH in ST
section.
Possible cause and SUSPECTED PARTS
G
e
a
r t
o
ot
h
ro
ug
h
Ge
ar co
nt
a
c
t
im
pro
pe
r
T
o
o
th su
rf
ac
es wo
rn
Ba
ck
la
sh
i
n
co
rrec
t
Co
mp
an
io
n
f
lan
ge
ex
ce
ssi
ve
run
o
u
t
Ge
ar oil
im
pro
pe
r
PROPELLER SHAF
T
AXLE
AND SUSPE
N
S
ION
TIRE
ROA
D
WHEEL
DR
IVE SHAF
T
BRAKE
STEERING
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
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