2006 INFINITI M35 Factory Service Manual

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Page 4977 of 5621

INFINITI M35 2006 Factory Service Manual PS-24
POWER STEERING GEAR
Revision: 2006 January2006 M35/M45
ASSEMBLY
1. Apply power steering fluid to O-ring. Put an O-ring into rack Teflon ring.
2. Heat rack Teflon ring to approximately 40
C

Page 4978 of 5621

INFINITI M35 2006 Factory Service Manual POWER STEERING GEAR
PS-25
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Revision: 2006 January2006 M35/M45
b. Insert rack oil seal (inner) into rack assembly piston (rack Te f l o n
ring).
c. Push retainer to adjustin

Page 4979 of 5621

INFINITI M35 2006 Factory Service Manual PS-26
POWER STEERING GEAR
Revision: 2006 January2006 M35/M45
1 2 . A p p l y G e n u i n e L i q u i d G a s k e t , T h r e e B o u n d 1111 B o r e q u i v a l e n t
to the thread

PS-26
POWER STEERING GEAR
Revision: 2006 January2006 M35/M45
1 2 . A p p l y G e n u i n e L i q u i d G a s k e t , T h r e e B o u n d 1111 B o r e q u i v a l e n t
to the thread (2 turns thread), and then screw in the adjusting
screw until it reaches height “H” from gear housing assembly
measured before disassembling.
13. Move rack assembly 10 strokes throughout the full stroke so that
the parts can fit with each other.
14. Measure pinion rotating torque within
180 of neutral position
of the rack assembly using the preload gauge [SST] and preload
adapter [SST]. Stop the gear at the point where highest torque is
read.
15. Loosen adjusting screw and retighten to 5.4 Nꞏm (0.55 kg-m, 48
in-lb), and then loosen by 20 to 40
.
16. Measure pinion rotating torque using the preload adapter [SST]
and preload gauge [SST] to make sure that the measured value
is within the standard. Readjust if the value is outside the stan-
dard. Replace steering gear assembly if the value is outside the
standard after readjusting or adjusting screw rotating torque is 5
Nꞏm (0.51 kg-m, 44 in-lb) or less.
17. Apply Genuine Liquid Gasket, Three Bound 1111B or equivalent to inner socket and turn pinion fully to left
with inner socket installed to gear housing assembly.
18. Set dial gauge as shown in the figure. Measure vertical move-
ment of rack assembly when pinion is turned clockwise with
torque of 19.6 Nꞏm (2.0 kg-m, 14 ft-lb). Readjust adjusting screw
angle if the measured value is outside the standard. Replace
steering gear assembly if the measured value is still outside the
standard or adjusting screw rotating torque is 5 Nꞏm (0.51 kg-m,
44 in-lb) or less.
SGIA0624E
SGIA0942E
SGIA0936E
Pinion rotating torque standard 2WD AWD
Around neutral position (within
100)
Average A1.95 - 2.58 Nꞏm
(0.20 - 0.26 kg-m, 18 - 22 in-lb)2.27 - 3.05 Nꞏm
(0.24 - 0.31 kg-m, 20 - 26 in-lb)
Maximum variation B 0.98 Nꞏm (0.10 kg-m, 9.0 in-lb)
SGIA1185E

Page 4980 of 5621

INFINITI M35 2006 Factory Service Manual POWER STEERING GEAR
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Revision: 2006 January2006 M35/M45
19. Install large end of boot to gear housing assembly.
20. Install small end of boot to inner socket boot mounti

Page 4981 of 5621

INFINITI M35 2006 Factory Service Manual PS-28
POWER STEERING GEAR
Revision: 2006 January2006 M35/M45
Bent cut end of the wire toward rack axial as shown in the fig-
ure after twisting the wire 4 to 4.5 turns so that cut end doe

Page 4982 of 5621

INFINITI M35 2006 Factory Service Manual POWER STEERING OIL PUMP
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Revision: 2006 January2006 M35/M45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS000DE
CHECKING RELIEF OIL PRESSURE
CAUTI

POWER STEERING OIL PUMP
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Revision: 2006 January2006 M35/M45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS000DE
CHECKING RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1. Connect the hydraulic pressure gauge [SST] between oil pump
discharge connector and high-pressure hose. Bleed air from the
hydraulic circuit while opening valve fully. Refer to PS-8, "
Air
Bleeding Hydraulic System" .
2. Start engine. Run engine until oil temperature reaches 50 to
80
C (122 to 176F).
CAUTION:
Leave the valve of the hydraulic pressure gauge [SST]
fully open while starting and running engine. If engine is
started with the valve closed, the hydraulic pressure in
oil pump goes up to the relief pressure along with
unusual increase of oil temperature.
Be sure to keep hose clear of belts and other parts when
engine is started.
3. Fully close the hydraulic pressure gauge [SST] valve with
engine at idle and measure the relief oil pressure.
CAUTION:
Never keep valve closed for 10 seconds or longer.
4. Open the valve slowly after measuring. Repair oil pump is the
relief oil pressure is outside the standard. Refer to PS-30, "
Dis-
assembly and Assembly (Models with VK45DE)" , PS-34, "Disassembly and Assembly (Models with
VQ35DE)" .
5. After inspection, disconnect the hydraulic pressure gauge [SST] from hydraulic circuit, then add fluid and
bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
Removal and InstallationNGS000DF
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove undercover from vehicle with a power tool.
3. Loosen drive belt. Refer to EM-15, "
DRIVE BELTS" (VQ35DE), EM-174, "DRIVE BELTS" (VK45DE).
4. Remove drive belt from oil pump pulley.
5. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-38,
"HYDRAULIC LINE" .
6. Remove oil pump mounting bolts, and then remove power steering oil pump. Refer to PS-38, "
Compo-
nents" .
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-38, "HYDRAULIC LINE" .
Perform the following procedure after installing.
–Adjust belt tension (VQ35DE). Refer to EM-15, "Tension Adjustment" .
–About the installation of VK45DE drive belt, refer to EM-174, "Tension Adjustment" .
–Bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" . Relief oil pressure:
8,520 - 9,320 kpa (86.9 - 95.1 kg/cm
2 , 1,235 - 1,351 psi)
SGIA0915E

Page 4983 of 5621

INFINITI M35 2006 Factory Service Manual PS-30
POWER STEERING OIL PUMP
Revision: 2006 January2006 M35/M45
Disassembly and Assembly (Models with VK45DE)NGS000DG
COMPONENTS
INSPECTION BEFORE DISASSEMBLY
Disassemble oil pump only when the follo

Page 4984 of 5621

INFINITI M35 2006 Factory Service Manual POWER STEERING OIL PUMP
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Revision: 2006 January2006 M35/M45
DISASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.

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