Infiniti QX4 (R50). Manual — part 554
General Specifications
NBST0037
Applied model
All
Steering model
Power steering
Steering gear type
PR32K
Steering overall gear ratio
17.2
Turns of steering wheel
(Lock to lock)
3.09
Steering column type
Collapsible, tilt
Steering Wheel
NBST0038
Unit: mm (in)
Steering wheel axial play
0 (0)
Steering wheel play
35 (1.38) or less
Movement of gear housing
±
2 (
±
0.08) or less
Steering Column
NBST0039
Unit: mm (in)
Steering column length “L
1
”
716.7 - 718.7 (28.22 - 28.30)
Steering column lower shaft length “L
2
”
178 - 180 (7.01 - 7.09)
Steering column upper joint length “L
3
”
430.7 - 432.7 (16.96 - 17.04)
SST739C
Steering Transfer Gear
NBST0041
Rotating torque
0.25 - 0.69 N·m (2.5 - 7.0 kg-cm, 2.2 - 6.1 in-lb)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
ST-32
Steering Gear and Linkage
NBST0040
Applied model
All
Steering gear type
PR32K
Tie-rod outer ball joint
Swinging force at cotter pin hole: “A”
4.9 - 47.1 N (0.5 - 4.8 kg, 1.1 - 10.6 lb)
Rotating torque: “B”
0.3 - 2.9 N·m (3 - 30 kg-cm, 2.6 - 26.0 in-lb)
Axial end play: “C”
0.1 mm (0.004 in) or less
Tie-rod inner ball joint
Swinging force*: “A”
3.9 - 32.4 N (0.4 - 3.3 kg, 0.9 - 7.3 lb)
Axial end play: “C”
0.3 mm (0.012 in) or less
Tie-rod standard length “L”
200 mm (7.87 in)
Rack stroke “S”
72.0 mm (2.835 in)
Pinion gear preload without
gear fluid
Lock to lock
Average rotating torque
0.78 - 1.47 N·m (8.0 - 15.0 kg-cm, 6.9 - 13.0 in-lb)
Within
±
100° from the neutral position
Maximum torque variation
0.4 N·m (4 kg-cm, 3.5 in-lb)
Outside the above range
Maximum torque variation
0.6 N·m (6 kg-cm, 5.2 in-lb)
*: Measuring point [
: 240 mm (9.45 in)]
SST740C
Power Steering
NBST0042
Steering gear type
PR32K
Rack sliding force
Under normal operating oil pressure
137 - 255 N (14 - 26 kg, 31 - 57 lb)
Retainer adjustment
(Adjustment screw)
Initial tightening torque
4.9 - 5.9 N·m (50 - 60 kg-cm, 43 - 52 in-lb)
Retightening torque after loosening
0.2 N·m (2 kg-cm, 1.7 in-lb)
Tightening torque after gear has settled
4.9 - 5.9 N·m (50 - 60 kg-cm, 43 - 52 in-lb)
Returning angle
10° - 20°
Steering wheel turning force
(Measured at one full turn from the neutral position)
39 N (4 kg, 9 lb) or less
Fluid capacity (Approximate)
0.9
(1 US qt, 3/4 Imp qt)
Oil pump maximum pressure
8,630 - 9,219 kPa (88 - 94 kg/cm
2
, 1,251 - 1,337 psi)
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Steering Gear and Linkage
ST-33
NOTES
FRONT & REAR SUSPENSION
CONTENTS
FRONT SUSPENSION . . . . . . . . . . . . . 2
Precautions . . . . . . . . . . . . . . . . ..2
. . . . . . . . . . . . . . .2
Preparation . . . . . . . . . . . . . . . . ..2
. . . . . . . . . . 2
. . . . . . . . 2
Noise, Vibration and Harshness (NVH)
Troubleshooting . . . . . . . . . . . . . . ...3
. . . . . . . 3
Components. . . . . . . . . . . . . . . . .4
On-vehicle Service. . . . . . . . . . . . . ...5
. . . . . . . . ...5
. . . . . . . . . .6
Coil Spring and Strut Assembly. . . . . . . . ...8
. . . . . . . . . . . . . . .8
. . . . . . . . . . . . . . . . .9
. . . . . . . . . . . . . . ..9
. . . . . . . . . . . . . . . .9
. . . . . . . . . . . . . . . .10
Stabilizer Bar . . . . . . . . . . . . . . . .10
. . . . . . . ...10
. . . . . . . . . . . . . . ... 11
Transverse Link and Lower Ball Joint . . . . . ... 11
. . . . . . . ... 11
. . . . . . . . . . . . . . ...12
Service Data and Specifications (SDS). . . . . .13
GENERAL SPECIFICATIONS (FRONT)
. . . . . .13
. . . . . . ..13
. . . . . . . . . . . ...13
. . . . . . .14
. . . . . . . . ..14
REAR SUSPENSION. . . . . . . . . . . . . .15
Precautions . . . . . . . . . . . . . . . . 15
. . . . . . . . . . . . . ...15
Preparation . . . . . . . . . . . . . . . . 15
. . . . . . . ..15
Noise, Vibration and Harshness (NVH)
Troubleshooting . . . . . . . . . . . . . . .15
Components. . . . . . . . . . . . . . . ...16
On-vehicle Service. . . . . . . . . . . . . .16
. . . . . . . . ...16
Removal and Installation . . . . . . . . . . ...17
Coil Spring and Shock Absorber . . . . . . . ...18
. . . . . . . . . . . . . ...18
. . . . . . . ...19
. . . . . . . . . . . . . . ...19
Upper Link, Lower Link and Panhard Rod. . . . 19
. . . . . . . . . . . . . . ...19
. . . . . . . . . . . . . . 20
Stabilizer Bar . . . . . . . . . . . . . . . .20
. . . . . . . ...20
Service Data and Specifications (SDS). . . . . .20
. . . . . ...20
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
BR
ST
RS
BT
HA
SC
EL
IDX
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