Nissan Primera P12. Instruction — part 682
PS-14
[F9Q]
POWER STEERING GEAR AND LINKAGE
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for tear, wrinkle, and deformation. Replace it, if necessary.
Steering Gear Assembly
●
Check for smooth operation through a full stroke.
●
Check rack and tie-rod for cracks, deformation or other damage.
●
Using a preload gauge, measure rotational torque of pinion gear.
Check that reeding is within range specified.
●
Check rack sliding force.
Gear Housing Cylinder
Check gear housing cylinder for damage and scratch (inner wall). Replace it, if necessary.
Tie Rod Ball Joint
1.
Tensile force
●
Hook spring scale at the position indicated in the figure. Con-
firm the reading at the moment the ball stud begins moving is
within specifications. If the value is outside the standard,
replace outer and inner sockets.
Pinion rotating torque
: 0.85 - 1.45 N·m (0.09 -
0.14 kg·m, 8 - 12 in-lb)
MGIA0036E
Rack sliding force
: 145 - 255 N (14.8 - 26.0
kg, 32.6 - 57.3 lb)
SST090B
Outer socket
Inner socket
Oscillating
torque
0.3 - 2.9 N·m (0.03 - 0.29
kg·m, 3 - 25 in-lb)
0.1 - 7.8 N·m (0.01 - 0.79
kg·m, 1 - 69 in-lb)
Measure-
ment on
spring bal-
ance
6.6 - 63.7 N (0.67 - 65.0
kg, 1.48 - 14.32 lb)
0.3 - 24.3 N (0.03 - 2.48
kg, 0.07 - 5.46 lb)
MGIA0007E
POWER STEERING GEAR AND LINKAGE
PS-15
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PS
2.
Sliding torque
●
Using a preload gauge, check reading is within range speci-
fied below. If the value is outside the standard, replace outer
and inner sockets.
3.
Axial end play
●
Apply load of 490 N (50 kg, 110.6 lb) to ball stud axially. Mea-
sure amount of movement that stud makes by using a dial
gauge. Check reading is within range specified below. If not,
replace outer and inner sockets.
ASSEMBLY
1.
Apply multi-purpose grease to both large- and small- diameter
sides.
2.
Install large- and small- diameter side of boot to inner socket
boot mounting groove.
3.
Install boot band to large- and small- diameter side of boot.
4.
Connect lock nut and outer socket to inner socket. Temporarily
tighten lock nut until length of tie rod is within specification.
CAUTION:
Perform toe-in adjustment after this procedure. Length
achieved after toe-in adjustment is not necessarily value
given here.
Outer socket
PR25T
Sliding torque
0.3 - 2.9 N·m (0.03 - 0.29 kg·m, 3 - 25 in·lb)
SGIA0083E
Outer socket
: 0.1 mm (0.004 in) or less
Inner socket
: 0.1 mm (0.004 in) or less
SGIA0057E
SST589B
Tie rod length (L)
: 130 mm (5.12 in)
SST867C
PS-16
[F9Q]
POWER STEERING OIL PUMP
POWER STEERING OIL PUMP
PFP:49110
On-Vehicle Inspection and Service
EGS000NH
OIL PUMP PULLEY HYDRAULIC PRESSURE INSPECTION
Before starting following procedure, check tension of belt.
1.
Raise vehicle. Connect oil pressure gauge between oil pump
discharge connector and high pressure hose. Then bleed the
hydraulic circuit.
2.
Start engine. Run engine until oil temperature reaches 50
°
C -
60
°
C (122 - 140
°
F)
CAUTION:
●
Leave valve of hydraulic pressure gauge fully open while
starting and running engine. If engine is started with
valve closed, hydraulic pressure in oil pump goes up.
This will relief pressure along with abnormal increase of
oil temperature.
●
Care must be taken to keep hose clear of belt and other parts when engine is started.
3.
Fully close hydraulic pressure gauge valve with engine at idle. Measure relief pressure.
4.
After measurement, open valve slowly.
CAUTION:
Never keep valve closed for 15 seconds or longer.
●
If relief pressure is outside specification, disassemble and service oil pump.
5.
After inspection, remove oil pressure gauge from hydraulic circuit. Add fluid. Be sure to bleed the system
completely. Refer to
PS-5, "Bleeding Hydraulic System"
.
Removal and Installation
EGS000NI
REMOVAL
1.
Loosen belt tensioner mounting bolt. Then, remove belt.
2.
Remove union bolt and hose for oil pump.
3.
Remove oil pump attaching bolt.
4.
Remove oil pump from vehicle.
INSTALLATION
Paying attention to following items, install in the reverse order of removal.
●
After installation, adjust belt tension. Refer to “Accessory belt” in “B1 Engine Body”.
●
After installation, be sure to bleed system. Refer to
PS-5, "Bleeding Hydraulic System"
.
Relief pressure specification
: To be informed
SST834-H
MGIA0037E
HYDRAULIC LINE
PS-17
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HYDRAULIC LINE
PFP:49721
Removal and Installation
EGS000NL
MGIA0038E
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