Nissan GT-R. Instruction — part 301
POWER STEERING FLUID
ST-7
< PERIODIC MAINTENANCE >
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Fill reservoir tank with a sufficient amount of fluid so that fluid level is not below the MIN line while
turning steering wheel.
2.
Start the engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leak-
age.
3.
Repeat step 2 above several times at approximately 3 seconds intervals.
CAUTION:
Never hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4.
Check fluid for bubbles and white contamination.
5.
Stop the engine if bubbles or white contamination exist. Perform step 2 and 3 above after waiting until
bubbles and white contamination disappear.
6.
Stop the engine, and then check fluid level.
ST-8
< PERIODIC MAINTENANCE >
STEERING WHEEL
STEERING WHEEL
Inspection
INFOID:0000000009160097
STEERING WHEEL AXIAL END PLAY
1.
Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.
2.
Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.
3.
Check the following items if steering wheel axial end play is out of the standard.
• Check the steering column assembly mounting condition. Refer to
• Check steering gear assembly mounting condition for looseness. Refer to
.
STEERING WHEEL PLAY
1.
Turn steering wheel so that front wheels come to the straight-ahead position.
2.
Start the engine and lightly turn steering wheel to the left and right until front wheels start to move.
3.
Measure steering wheel movement on the outer circumference.
4.
Check the following items if steering wheel play is out of the standard.
• Check backlash for each joint of steering column assembly.
• Check installation condition of steering gear assembly.
NEUTRAL POSITION STEERING WHEEL
1.
Check that steering gear assembly, steering column assembly and steering wheel are installed in the cor-
rect position.
2.
Perform neutral position inspection after wheel alignment. Refer to
3.
Set the vehicle to the straight-ahead position and check that the steering wheel is in the neutral position.
4.
Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.
STEERING WHEEL TURNING TORQUE
1.
Park the vehicle on a level and dry surface, apply parking brake.
2.
Tires need to be inflated to the specified pressure. Refer to
3.
Remove driver air bag module. Refer to
.
4.
Start the engine.
5.
Check that the power steering fluid is at the operating temperature.
Steering wheel axial end
play
: Refer to
Wheel Axial End Play and
Play"
.
Steering wheel play
: Refer to
Wheel Axial End Play and
Play"
.
Fluid temperature
: 50 – 80
°
C (122 – 176
°
F)
STEERING WHEEL
ST-9
< PERIODIC MAINTENANCE >
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6.
Make sure that the reading is within the following specified
range using preload gauge (A) [SST: ST3127S000 (J-25765-A)].
7.
If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump.
FRONT WHEEL TURNING ANGLE
1.
Check front wheel turning angle after toe-in inspection. Refer to
2.
Place front wheels on turning radius gauges and rear wheels on
stands, so that vehicle can be level.
3.
Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.
4.
With the engine at idle, turn steering wheel from full left stop to
full right stop and measure the turning angles.
Steering wheel turning
torque
: Refer to
.
JSGIA0431ZZ
FAA0016D
Inner wheel (Angle: A)
: Refer to
ST-18, "EXCEPT TRACK PACK-SPECIFIC
(Except track pack-
CIFIC SUSPENSION : Steering Angle"
(Track pack-
specific suspension).
Outer wheel (Angle: B)
: Refer to
ST-18, "EXCEPT TRACK PACK-SPECIFIC
(Except track pack-
CIFIC SUSPENSION : Steering Angle"
(Track pack-
specific suspension).
SGIA0055E
ST-10
< REMOVAL AND INSTALLATION >
STEERING WHEEL
REMOVAL AND INSTALLATION
STEERING WHEEL
Exploded View
INFOID:0000000009160098
Removal and Installation
INFOID:0000000009160099
REMOVAL
NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
omits neutral position alignment procedure during spiral cable installation.
1.
Set the vehicle to the straight-ahead position.
2.
Remove driver air bag module. Refer to
.
3.
Remove steering wheel lock nut after steering is locked.
4.
Remove steering wheel with the steering wheel puller (A) [SST:
ST27180001 (J-25726-A)].
NOTE:
Put paint marks on the steering wheel and the column shaft
head for supporting accurate positioning during the installation
procedure.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Never twist spiral cable freely on excessively after it becomes tight (doing so may cause the cable to
tear off).
NOTE:
Check the spiral cable neutral position after replacing or rotating spiral cable. Refer to
• Never reuse steering wheel lock nut.
1.
Steering wheel
Refer to
for symbols in the figure.
JSGIA0705GB
NNGIA0005ZZ
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