engine INFINITI FX35 2008 Service Manual

STEERING WHEELPS-9
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STEERING WHEEL
On-Vehicle Inspection and ServiceINFOID:0000000001327712
CHECKING CONDITION OF INSTALLATION
 Check installation condition of steering gear assemb ly, front suspension, axle and steering column.
 Check if movement exists when steering wheel is mo ved up and down, to the left and right and to the axial
direction.
 Check if the mounting bolts for steering gear assembly are loose or not. Refer to PS-17
.
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumfe rence when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to FSU-5,
"Wheel Alignment Inspection".
1. Set vehicle to the straight direction, chec k if steering wheel is in the neutral position.
2. If it is not in the neutral position, remo ve steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen outer socket lock
nuts of steering outer sockets, then adjust outer so cket by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating te mperature. [Make sure temperature of fluid is
approximately 50 to 80 °C (122 to 176 °F).]
NOTE:
Tires need to be inflated normal pressure.
4. Check steering wheel turning force when steering wheel has been turned 360 ° from neutral position.
NOTE:
Multiply the distance L from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-27, "
On-Vehicle Inspection and Service".
End play of the axle direction for steering wheel : 0 mm (0 in)
SGIA0546E
Steering wheel play on the
outer circumference : 0 − 35 mm (0 − 1.38 in)
Steering wheel turning force : Less than 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA1136E
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PS-10
< SERVICE INFORMATION >
STEERING WHEEL
a. Disconnect lower joint and steering knuckle from steering gear assembly. Refer to PS-12, "Removal and
Installation", FA X - 4 , "Removal and Installation", FAX-11, "Removal and Installation".
b. Start and run engine at idle to make sure steer ing fluid has reached normal operating temperature.
c. While pulling outer socket slowly in ±11.5 mm ( ±0.453 in) range
from neutral position, make sure rack sliding force is within
specification.
d. If rack sliding force is not within specification, overhaul steering gear assembly.
CHECKING FRONT WHEEL TURNING ANGLE
 Check front wheel turning angle after the toe-in inspection. Placefront wheels on turning radius gauges and rear wheels on stands
so that vehicle can be level. Check the maximum inner and outer
wheel turning angles for LH and RH road wheels.
 Start engine and run at idle, turn steering wheel all the way right and left, measure the turning angle.
 Measure rack stroke if angles are outside the specified value.
 Disassemble steering gear assembly to check the cause that rack
stroke is outside of the standard.
 Steering angles are not adjustable. Check steering gear assembly, steering column assembly and front suspension components for
wear or damage if any of the turning angles are different from the
specified value. Replace any of them, if any non-standard condi-
tion exists.
Removal and InstallationINFOID:0000000001327713
REMOVAL
NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
will omit neutral position alignment procedure during spiral cable installation. Rack sliding force
: 147 − 211 N (15 − 21.5 kg, 33 − 47 lb)
SST090B
FAA0016D
Inner wheel (Angle: A) Minimum 32
°00’ (32.0 °)
Nominal 35 °00’ (35.0 °)
Maximum 36 °00’ (36.0 °)
Outer wheel (Angle: B) 30 °00’ (30.0 °)
SGIA0055E
Rack stroke L 67.0 mm (2.638 in)
SGIA0629J
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POWER STEERING OIL PUMPPS-27
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POWER STEERING OIL PUMP
On-Vehicle Inspection and ServiceINFOID:0000000001327718
CHECKING RELIEF OIL PRESSURE (VQ35DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gauge adapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 to 80 °C (122 to 176 °F).
CAUTION:
 Warm up engine with shut-o ff valve fully opened. If engine
is started with shut-off val ve closed, fluid pressure in
power steering pump increases to maximum. This will
raise fluid temperature excessively.
 Be careful not to contact hose with belt when engine is
started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressu re gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly. If relief oil pressure is outside the specificat ion, disassemble and repair oil pump. Refer to PS-29, "
Disas-
sembly and Assembly (VQ35DE Models)".
5. After inspection, disconnect oil pressure gauge ( SST) and oil pressure gauge adapter (SST) from hydrau-
lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly.
Refer to PS-7, "
Air Bleeding Hydraulic System".
CHECKING RELIEF OIL PRES SURE (VK45DE MODELS)
CAUTION:
SGIA0570E
SST
Pressure gauge KV48103500
(J-26357&J-26357-10)
Oil pump side Eye joint KV48102500-01 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
High pressure piping side Flare joint KV48102500-02 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
Relief oil pressure
: 9,900 - 10,700 kPa (101 - 109.1 kg/cm
2, 1436 - 1552 psi)
SGIA0522E
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PS-28
< SERVICE INFORMATION >
POWER STEERING OIL PUMP
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gaugeadapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 to 80 °C (122 to 176 °F).
CAUTION:
 Warm up engine with shut-off val ve fully opened. If engine is started with shut-off valve closed,
fluid pressure in power steering pump increases to maximum. This will raise fluid temperature
excessively.
 Be careful not to contact hose with belt when engine is started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressu re gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly. If relief oil pressure is outside the specification, disassemble and repair oil pump. Refer to PS-32, "
Disas-
sembly and Assembly (VK45DE Models)".
5. After inspection, disconnect oil pressure gauge (S ST) and oil pressure gauge adapter (SST) from hydrau-
lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly. Refer to PS-7, "
Air Bleeding Hydraulic System".
Removal and Installation (VQ35DE Models)INFOID:0000000001327719
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Loosen belt tensioner adjust screw, then remove belt from oil pump pulley. Refer to EM-15
.
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-37
.
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-37 for tightening torque. Install in the reverse order removal.
 After installation, adjust belt tension. Refer to EM-14
.
SGIA0570E
SST
Pressure gauge and shut-off valveKV48103500
(J26357 and J26357-10)
Oil pump side Connector A and O-ring
KV48105300-4 and 5295262U10
(—)
Eye-bolt and O-ring KV48105300-3 and 5295262U00
(—)
High pressure
piping side Connector B and O-ring
KV48105300-1 and 5295262U00
(—)
Nut KV48105300-2 ( — )
SGIA0572E
Relief oil pressure : 9,900 - 10,700 kPa (101 - 109.1 kg/cm
2, 1436 - 1552 psi)
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POWER STEERING OIL PUMPPS-29
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 After installation, bleed air. Refer to PS-7, "Air Bleeding Hydraulic System".
Removal and Installation (VK45DE Models)INFOID:0000000001327720
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Remove power steering oil pump belt from auto tensioner. Refer to EM-170
.
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure from power steering oil pump (drain fluid from their pip- ings). Refer to PS-37
.
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-37 for tightening torque. Install in the reverse order removal.
After installation, bleed air. Refer to PS-7, "
Air Bleeding Hydraulic System".
NOTE:
Adjustment of belt tension is no necessary bec ause engine of this model equips auto tensioner.
Disassembly and Assembly (VQ35DE Models)INFOID:0000000001327721
COMPONENTS
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.
 Oil leakage from oil pump
 Deformed or damaged pulley
 Poor performance
1. Rear cover 2. Teflon ring 3. O-ring
4. Rear side plate 5. Rotor snap ring 6. Dowel pin
7. Cam ring 8. Rotor 9. Vane
10. Cartridge 11. Front side plate 12. O-ring
13. Flow control valve A 14. Spring 15. Flow control valve B assembly
16. Body assembly 17. Oil seal 18. Pulley
19. O-ring 20. Suction pipe 21. Bracket
Refer to GI-8, "
Component" and the followings for the symbols in the figure.
: Apply power steering fluid
: Apply multi-purpose grease
SGIA1679E
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SERVICE DATA AND SPECIFICATIONS (SDS)
RAX-17
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SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel BearingINFOID:0000000001327531
Drive ShaftINFOID:0000000001327532
Axial end play 0.05 mm (0.002 in) or less
Rotational torque At a load of 49,033 N (5,000 kg, 11,000 lb)
Less than 2.7 N·m (0.28 kg-m, 24 in-lb)
Measurement of spring scale Less than 26.6 N (2.7 kg, 5.95 lb)
Measuring point (Brake caliper installation points)
SDIA0801E
Joint Wheel side Final drive side
Engine model VQ35DE VK45DE VQ35DE VK45DE
Grease quantity 86
− 96 g
(3.03 − 3.38 oz) 140
− 160 g
(4.93 − 5.64 oz) 124
− 134 g
(4.37 − 4.72 oz) 175
− 195 g
(6.17 − 6.87 oz)
Boots installed length 97 mm (3.82 in) 141.5 mm (5.57 in) 93.9 mm (3.697 in) 147.9 mm (5.82 in)
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PREPARATIONRF-3
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PREPARATION
Special Service ToolINFOID:0000000001328028
The actual shapes of Kent-Moore tools may differ fr om those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000001328029
Tool number
(Kent-Moore No.)
Tool name Description
(J39570)
Chassis ear Locating the noise
(J43980)
NISSAN Squeak and Rat-
tle Kit Repairing the cause of noise
SIIA0993E
SIIA0994E
Tool name Description
(J39565)
Engine ear
Locating the noise
SIIA0995E
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SQUEAK AND RATTLE TROUBLE DIAGNOSESRF-5
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If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half- clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
 Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
 If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, che ck ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool (Chassis Ear: J39570, Engine Ea r and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
 removing the components in the area that you suspect the noise is coming from. Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.
 tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only tem-
porarily.
 feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.
 placing a piece of paper between components that you suspect are causing the noise.
 looking for loose components and contact marks. Refer to RF-6, "
Generic Squeak and Rattle Troubleshooting".
REPAIR THE CAUSE
 If the cause is a loose component, tighten the component securely.
 If the cause is insufficient clearance between components:
- separate components by repositioning or loos ening and retightening the component, if possible.
- insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or urethane tape. A Nissan Squeak and Rattle Kit (J43980) is available through your authorized Nissan Parts Depart-
ment.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
The following materials are contained in the Nissan Squeak and Rattle Kit (J43980). Each item can be ordered
separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 × 135 mm (3.94 × 5.31 in)/76884-71L01: 60 × 85 mm (2.36 × 3.35 in)/76884-71L02: 15 ×
25 mm (0.59 × 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact.Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 × 50 mm (1.97 × 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50
× 50 mm (1.97 × 1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 × 50 mm (1.18 × 1.97 in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15 × 25 mm (0.59 × 0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll
The following materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW(TEFLON) TAPE
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SQUEAK AND RATTLE TROUBLE DIAGNOSESRF-7
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Most of these incidents can be repaired by adjusting, se curing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the pos ition the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplic ated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of thes e incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs c an usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
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DIFFERENTIAL GEAR OILRFD-9
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DIFFERENTIAL GEAR OIL
Changing Differential Gear OilINFOID:0000000001327495
DRAINING
1. Stop engine.
2. Remove drain plug (1) and drain gear oil.
3. Set a gasket on drain plug (1) and install it to final drive assem- bly and tighten to the specified torque. Refer to RFD-17, "
Disas-
sembly and Assembly".
CAUTION:
Never reuse gasket.
FILLING
1. Remove filler plug (1). Fill with new gear oil until oil level reaches the specified level near filler plug mounting hole.
2. After refilling oil, check oil level. Set a gasket to filler plug (1), then install it to final drive assembly. Refer to RFD-17, "
Disas-
sembly and Assembly".
CAUTION:
Never reuse gasket.
Checking Differential Gear OilINFOID:0000000001327496
OIL LEAKAGE AND OIL LEVEL
 Make sure that oil is not leaking from final drive assembly or around it.
 Remove filler plug (1) and check oil level from filler plug mounting hole as shown in the figure.
CAUTION:
Never start engine while checking oil level.
 Set a gasket on filler plug (1) and install it on final drive assembly.
Refer to RFD-17, "
Disassembly and Assembly".
CAUTION:
Never reuse gasket.
PDIA0748J
Oil grade and Viscosity:
Refer to MA-9, "
Fluids and Lubricants".
Oil capacity:
Approx. 1.4 (3 US pt, 2-1/2 Imp pt)
PDIA0749J
PDIA0749J
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