Infiniti G35 (V35). Manual — part 678
PS-22
POWER STEERING GEAR
POWER STEERING GEAR
PFP:49001
Disassembly and Assembly
NGS000BH
COMPONENTS
1.
Outer socket
2.
Boot clamp
3.
Boot
4.
Inner socket
5.
Boot clamp
6.
End cover assembly
7.
Rack oil seal
8.
Rack Teflon ring
9.
O-ring
10. Rack assembly
11.
Rack oil seal
12. Gear housing assembly
13. Cylinder tubes
14. Power steering solenoid valve
(with EPS)
15. O-ring
16. Gear sub-assembly
17. Rear cover cap
, and the followings for the symbols in the figure.
: Apply Genuine Thread Locking Sealant, Three Bound 1111B or equivalent.
SGIA1476E
POWER STEERING GEAR
PS-23
C
D
E
F
H
I
J
K
L
M
A
B
PS
CAUTION:
●
Secure steering gear assembly with a vise, using copper
plates or something similar to prevent it from being dam-
aged. Do not grip cylinder with a vise.
●
Before performing disassembly, clean steering gear assem-
bly with kerosene. Be careful not to bring any kerosene into
contact with the discharge and return port connectors.
DISASSEMBLY
1.
Remove fixing bolts of power steering solenoid valve, and then remove power steering solenoid valve
from gear-sub assembly (with EPS).
2.
Remove cylinder tubes from gear housing assembly.
3.
Remove rear cover cap from gear sub-assembly.
4.
Measure adjusting screw height from gear housing assembly,
then loosen adjusting screw.
CAUTION:
●
Do not turn adjusting screw more than twice.
●
Replace steering gear assembly when adjusting screw is
removed or more than twice.
5.
Remove fixing bolts of gear sub-assembly and then remove
gear sub-assembly from gear housing assembly.
6.
Remove O-ring from gear housing assembly.
7.
Loosen lock nut of outer socket, and remove outer socket.
8.
Remove boot clamps of the small diameter side and the large
diameter side, then remove boots.
CAUTION:
On removing boots, be careful not to damage the inner socket and the gear housing assembly. If
they are is damaged, change them to avoid oil leaks.
9.
Drill out the clinching part of cylinder outer rim with a 3 mm (0.12
in) drill in 1.5 mm (0.059 in) depth.
: Apply multi-purpose grease.
: Apply Genuine NISSAN PSF or equivalent.
SGIA0360E
SGIA0568E
STC0013D
PS-24
POWER STEERING GEAR
10. Remove end cover assembly with a 42 mm (1.65 in) open head
(suitable tool).
CAUTION:
Be careful not to damage rack. If it is damaged, replace
rack. Otherwise, oil leaks may result.
11. Pull rack with rack oil seal out of gear housing assembly.
CAUTION:
Be careful not to damage rack. If it is damaged, change to a
new one to avoid oil leaks.
12. Heat rack Teflon ring to approximately. 40
°
C (104
°
F) with a
dryer, then remove it and O-ring from rack assembly.
CAUTION:
Be careful not to damage rack. If it damaged, change to a
new one to avoid oil leaks.
13. Use a taped 29 mm (1.14 in) socket and an extension bar.
Remove rack oil seal from gear housing assembly.
CAUTION:
Be careful not to damage gear housing assembly and cylin-
der inner wall. If it is damaged, gear housing assembly
must be replaced. Otherwise, oil leaks will result.
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for cracks and deformation. Replace it, if necessary.
Rack Assembly
Check rack for damage and wear. Replace it, if necessary.
Gear Sub-Assembly
●
Check pinion gear for damage and wear. Replace it, if necessary.
●
Rotate pinion and check for torque variation or rattle. Replace if necessary.
Gear Housing Assembly
Check gear housing assembly for damage and scratches (inner wall). Replace it, if necessary.
SST081B
SGIA0151E
SGIA0454E
POWER STEERING GEAR
PS-25
C
D
E
F
H
I
J
K
L
M
A
B
PS
Outer Socket and Inner Socket
Swing Torque
●
Hook a spring balance at the point shown in the figure. Confirm
if the reading is within the specification. When ball stud and
inner socket start moving the measured value must be within the
specification. If the reading is outside the specification, replace
socket.
Specified value
Rotating torque
●
Using a preload gauge (SST), check if reading is within the
value specified below. If the value is outside the standard,
replace outer sockets.
Axial End Play
●
Apply load of 490 N (50 kg,110 lb) to ball stud axially. Use a dial
gauge to measure the amount of the movement that the stud
makes. Check if the reading is within the specified below. If the
value is outside the standard, replace outer and inner sockets.
SGIA0493E
Item
Outer socket
Inner socket
Measuring point
Cotter pin hole of stud
Shown as L: 48.5 mm (1.909 in)
Swing torque
0.3 - 2.9 N·m (0.03 - 0.29 kg-m,3 - 25 in-lb)
1.0 - 7.8 N·m (0.11 - 0.79 kg-m, 9 - 69 in-lb)
Measuring value
4.42 - 42.7 N (0.5 - 4.4 kg, 1 - 10 lb)
10 - 78 N (1 - 8 kg, 2 - 18 lb)
Rotating torque
0.3 - 2.9 N·m (0.03 - 0.29 kg-m, 3 - 25 in-lb)
SGIA0941E
Outer socket
0.5 mm (0.020 in) or less
Inner socket
0.2 mm (0.008 in) or less
SGIA1437E
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