Infiniti FX35, FX50 (S51). Manual — part 1763
ST-44
< REMOVAL AND INSTALLATION >
POWER STEERING OIL PUMP
6.
Remove oil seal from body assembly using a flat-bladed screw-
driver.
7.
Remove O-ring from body assembly.
8.
Remove lock nut, and then remove copper washer, joint and O-
ring.
9.
Remove connector bolt, and then remove O-ring, flow control
valve and spring from body assembly
10. Remove mounting bolts of suction pipe, and then remove suc-
tion pipe from body assembly.
11. Remove O-ring from body assembly.
ASSEMBLY
1.
Apply recommended grease to oil seal lips (1). Apply recom-
mended fluid to around oil seal. Install oil seal to body assembly
using a drift (commercial service tool).
CAUTION:
• Never reuse the oil seal.
• Fix oil pump with a vise if necessary.
• Use copper plates when fixing with a vise.
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.
SST034A
SGIA1150E
SGIA0422E
POWER STEERING OIL PUMP
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< REMOVAL AND INSTALLATION >
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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.
• 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.
SGIA1166E
SGIA0989E
SGIA0613E
SGIA0425E
ST-46
< REMOVAL AND INSTALLATION >
POWER STEERING OIL PUMP
14. Apply recommended fluid to O-ring, and then install O-ring to body assembly.
15. Install suction pipe to body assembly.
VK50VE : Inspection
INFOID:0000000005235293
RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1.
Connect the oil pressure gauge [SST: KV48103500 (J-26357)]
and the oil pressure gauge adapter [SST: KV48102500 (J-
33914)] between oil pump discharge connector and high-pres-
sure hose. Bleed air from the hydraulic circuit while opening
valve fully. Refer to
.
2.
Start engine. Run engine until oil temperature reaches 50 to
80
°
C (122 to 176
°
F).
CAUTION:
• Leave the valve of the oil pressure gauge 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 oil pressure gauge 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 if the relief oil pressure is outside the standard.
Refer to
ST-43, "VK50VE : Disassembly and Assembly"
.
5.
Disconnect the oil pressure gauge from hydraulic circuit.
6.
When installing eye bolt (1) and copper washer (2) to oil pump
(3), refer to the figure.
CAUTION:
• Never reuse copper washers.
• Apply power steering fluid or equivalent to around copper
washer, then install eye bolt.
• Install eye bolt with eye joint (assembled to high pressure
hose) (B) protrusion (A) facing with pump side cutout, and
then tighten it to the specified torque after tightening by
hand. Refer to
ST-49, "VK50VE : Exploded View"
• Securely insert harness connector to pressure sensor.
7.
Check fluid level, fluid leakage and air bleeding hydraulic sys-
tem after the installation. Refer to
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.
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.
Standard
Relief oil pressure
: Refer to
.
SGIA0915E
JSGIA0452ZZ
POWER STEERING OIL PUMP
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Cartridge Assembly Inspection
Check cam ring, rotor and vane for damage. Replace cartridge assembly if necessary.
Side Plate Inspection
Check side plate for damage. Replace side plate if there are.
Flow Control Valve Inspection
Check flow control valve and spring for damage. Replace if necessary.
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