steering INFINITI M35 2007 Factory Service Manual

POWER STEERING OIL PUMP
PS-33
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
ASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.
1. Apply recommended grease to oil seal lips (1). Apply recom-
mended fluid to around oil seal, and then install oil seal to body
assembly.
2. Apply recommended fluid to drive shaft, and press drive shaft
into body assembly, then install snap ring.
3. Apply recommended fluid to O-ring, and then install O-ring into
body assembly.
4. Install side plate to body assembly.
5. Install dowel pin (3) into dowel pin hole (A), and then install cam
ring (2) pointing it's D
1 side toward the body assembly (1) side
as shown in the figure.

When installing cam ring, turn carved face with a letter E (B)
of it to rear cover.
CAUTION:
Do not confuse the assembling direction of cam ring. If
cam ring is installed facing the incorrect direction, it may
cause oil pump operation malfunction.
6. Install rotor to body assembly.
SGIA1150E
SGIA0422E
SGIA1166E

PS-34
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45

When installing rotor, turn mark face on rotor to body assem-
bly.
7. Install vane to rotor so that arc of vane faces cam ring side.
8. Check if drive shaft turns smoothly.
9. Install gasket to body assembly.
10. Install rear cover to body assembly, and then tighten mounting
bolts to the specified torque.
11. Install pulley and washer to drive shaft, and then tighten lock nut
at the specified torque.
12. Apply recommended fluid to O-ring. Install spring, flow control
valve and O-ring to body assembly, and then tighten connector
bolt to the specified torque.
13. Apply recommended fluid to O-ring . Install O-ring, joint and cop-
per washer to connector bolt, and then tighten lock nut to the
specified torque.
14. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
15. Install suction pipe to body assembly.
SGIA0989E
SGIA0613E
SGIA0425E

POWER STEERING OIL PUMP
PS-35
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
Disassembly and Assembly (Models with VQ35DE)NGS000DH
COMPONENTS
INSPECTION BEFORE DISASSEMBLY
Disassemble oil pump only when the following malfunctions occur.

If oil leakage is found on oil pump.

Oil pump pulley is damaged or deformed.

Performance of oil pump is low.
1. Pulley 2. Oil seal 3. Bracket
4. Body assembly 5. Suction pipe 6. O-ring
7. Flow control valve B assembly 8. Flow control valve spring 9. Flow control valve A
10. Dowel pin 11. Front side plate 12. Vane
13. Rotor 14. Rotor snap ring 15. Cam ring
16. Rear side plate 17. O-ring 18. Teflon ring
19. O-ring 20. Rear cover 21. Cartridge
Refer to GI-11, "
Components" , and the followings for the symbols in the figure.
: Apply power steering fluid.
: Apply multi-purpose grease.
SGIA1188E

PS-36
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45
DISASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.
1. Remove rear cover mounting bolts, and then remove rear cover from body assembly.
2. Remove O-ring from body assembly.
3. Remove rear side plate from cartridge, and then remove Teflon ring and O-ring from rear side plate.
4. Remove rotor snap ring using a snap ring plier, and remove pul-
ley from body assembly.
CAUTION:
Remove pulley so as not to be damaged when removing
rotor snap ring.
5. Remove cartridge, front side plate, flow control valve A, flow
control valve spring and flow control valve B assembly from
body assembly.
CAUTION:
Do not drop and damage flow control valve A and flow con-
trol valve B assembly when removing.
6. Remove oil seal from body assembly.
7. Remove mounting bolt of suction pipe, and then remove suction
pipe from body assembly.
8. Remove O-ring from body assembly.
9. Remove bracket mounting bolts, and then remove bracket from
body assembly.
INSPECTION AFTER DISASSEMBLY
Body Assembly and Rear Cover Inspection
Check body assembly and rear cover for internal damage. Replace rear cover if it is damaged. Replace oil
pump assembly if body assembly is damaged.
Cartridge Assembly Inspection
Check cam ring, rotor and vane for damage. Replace cartridge assembly if there are.
Side Plate Inspection
Check side plates (front and rear) for damage. Side plates (front and rear) must be replaced as a set if they
are damaged.
Flow Control Valve Inspection
Check flow control valve A, flow control valve spring and flow control valve B assembly for damage. Replace if
there are.
SGIA0059E
SGIA0526E

POWER STEERING OIL PUMP
PS-37
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
ASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.
1. Apply recommended grease to oil seal lips. Apply recommended
fluid to around oil seal, and then install oil seal to body assembly
using the drift [SST].
2. Install bracket to body assembly, and then tighten mounting
bolts to the specified torque.
3. If dowel pin has been removed, insert it into body assembly by
hand. If cannot be inserted by hand, lightly tap with a hammer.
4. Install flow control valve A, flow control valve spring and flow
control valve B assembly as shown in the figure.
5. Install front side plate (3) with dowel pin (2) on flow control valve
A (1) side as shown in the figure aligning with front side plate
cutout (A) to body assembly (4).
6. Install cam ring as shown in the figure.
7. Install pulley to body assembly.
CAUTION:
Do not damage oil seal when installing pulley.
SGIA0527E
SGIA0526E
SGIA1189E
SGIA0612E

PS-38
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45
8. Install rotor so that mark faces body assembly, and then install it
to pulley shaft.
9. Install vane to rotor so that arc of vane faces cam ring side.
10. Install rotor snap ring to slit of pulley shaft using a hammer and a
10 mm (0.39 in) socket.
CAUTION:

Do not damage rotor and pulley shaft.

Power steering oil pump assembly must be replaced if
rotor is damaged.
11. Install rear side plate with dowel pin A on flow control valve A
side as shown in the figure aligning with rear side plate cutout B
to cartridge.
12. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
13. Apply recommended fluid to O-ring, and then install O-ring to
rear side plate.
14. Apply recommended fluid to Teflon ring, and then install Teflon
ring to rear side plate.
15. Install rear cover to body assembly, and then tighten mounting
bolts to the specified torque.
16. Apply recommended fluid to O-ring, and then install O-ring to body assembly.
17. Install suction pipe to body assembly.
SGIA0989E
SGIA0613E
SGIA0063E
SGIA0530E

HYDRAULIC LINE
PS-39
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
HYDRAULIC LINEPFP:49721
Removal and InstallationNGS000DI
COMPONENTS (VQ35DE 2WD MODELS)
1. Reservoir tank 2. Reservoir tank bracket 3. Suction hose
4. High pressure hose 5. Oil pump assembly 6. Steering gear assembly
7. Low pressure piping 8. High pressure piping 9. O-ring
SGIA1390E

PS-40
HYDRAULIC LINE
Revision: 2007 April2007 M35/M45
10. Eye-bolt 11. Copper washer 12. Eye-joint (assembled to high-pres-
sure side hose)
13. Pressure sensor 14. Oil pump bracket
Refer to GI-11, "
Components" , and the followings for the symbols in the figure.
: Apply power steering fluid.

HYDRAULIC LINE
PS-41
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
COMPONENTS (VQ35DE AWD MODELS)
1. Reservoir tank 2. Reservoir tank bracket 3. Suction hose
4. High-pressure hose 5. Oil pump assembly 6. Steering gear assembly
7. Low pressure piping 8. High pressure piping 9. O-ring
10. Eye-bolt 11. Copper washer 12. Eye-joint (assembled to high-pres-
sure side hose)
13. Pressure sensor 14. Oil pump bracket
SGIA1191E

PS-42
HYDRAULIC LINE
Revision: 2007 April2007 M35/M45
Refer to GI-11, "Components" , and the followings for the symbols in the figure.
: Apply power steering fluid.