height adjustment INFINITI QX56 2008 Factory User Guide

DLN-224
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
2. Using feeler gauges, measure the clearance between the side
gear back and differential case at three different points, while
rotating the side gear. Average the three readings to calculate
the clearance. (Measure the clearance of the other side as well.)
• If the side gear back clearance is outside of the specification,use a thicker or thinner side gear thrust washer to adjust.
Refer to DLN-231, "
Inspection and Adjustment".
CAUTION:
• Insert feeler gauges with the same thickness on both sides to prevent side gear from tilting.
• Each gear should rotate smoothly without excessive resistance during differential motion.
• Select a side gear thrust wash er for right and left individu-
ally.
NOTE:
Side gear back clearance is clearance between side gear and differential case for adjusting side gear
backlash.
Drive Pinion Height
• Drive gear and drive pinion are supplied in matched sets only. Matching numbers on both drive pinion and drive gear are etched
for verification. If a new gear set is being used, verify the numbers
of each drive pinion and drive gear before proceeding with assem-
bly.
• The mounting distance from the centerline of the drive gear to the back face of the drive pinion for the M205
final drive assembly is 103.5 mm (4.0748 inches).
On the button end of each drive pinion, there is etched a plus (+) number, a minus (-) number, or a zero (0),
which indicates the best running position for each partic ular gear set. This dimension is controlled by a
selective drive pinion height adjusting washer between the drive pinion rear bearing inner race and drive pin-
ion.
For example: If a drive pinion is etched m+8 (+3), it would require 0.08 mm (0.003 inch) less drive pinion
height adjusting washer than a drive pinion etched “0”. This means decreasing drive pinion height adjusting
washer thickness; increases the mounting distance of the drive pinion to 103.6 mm (4.0778 inches). If a
drive pinion is etched m-8 (-3), it would require addi ng 0.08mm (0.003 inch) more to the drive pinion height
adjusting washer than would be required if the drive pinion were etched “0”. By adding 0.08 mm (0.003 inch),
the mounting distance of the drive pinion was decreased to 103.4 mm (4.0718 inches) which is just what a
m-8 (-3) etching indicated.
• To change the drive pinion height, use different drive pi nion height adjusting washers which come in different
thickness.
• Use the following tables as a guide for selecting the correct drive pinion height adjusting washer thickness to add or subtract from the old drive pinion height adjusting washer. Side gear back clearance: 0.20 mm (0.0079 in) or less
If the side gear back clearance is greater than
specification:
Use a thicker side gear thrust washer.
If the side gear back clearance is less than spec-
ification: Use a thinner side gear thrust washer.
PDIA0576E
SDIA2241E
Revision: March 2010 2008 QX56

FRONT FINAL DRIVEDLN-225
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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ASSEMBLY
Drive Pinion Assembly
1. Install drive pinion rear bearing outer race using Tools.
2. Install drive pinion front bearing outer race using Tools.
3. Select drive pinion height adjusting washer. Refer to DLN-231, "
Inspection and Adjustment"".
OLD DRIVE
PINION
MARKING NEW DRIVE PINION MARKING mm (in)
-10 (-4) -8 (-3) -5 (-2) -3 (-1) 0 (0) + 3 (+1) +5 (+2) +8 (+3) +10 (+4)
+10 (+4) +0.20
(+0.008) +0.18
(+0.007) +0.15
(+0.006) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0)
+8 (+3) +0.18
(+0.007) +0.15
(+0.006) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001)
+5 (+2) +0.15
(+0.006) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002)
+3 (+1) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003)
0 (0) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004)
-3 (-1) +0
.08
(+0. 00

3)+0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005)
-5 (-2) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005) -0.15
(-0.006)
-8 (-3) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005) -0.15
(-0.006) -0.18
(-0.007)
-10 (-4) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005) -0.15
(-0.006) -0.18
(-0.007) -0.20
(-0.008)
Tool number A: ST30901000 ( — )
B: KV40105230 ( — )
SDIA2251E
Tool number A: ST35271000 ( — )B: KV40104810 ( — )
SDIA2252E
Revision: March 2010 2008 QX56

DLN-252
< DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
ASSEMBLY INSPECTION AND ADJUSTMENT
• Drain the differential gear oil before inspection and adjustment. Refer to
DLN-242, "Changing Differential
Gear Oil".
• Remove and install the carrier cover as neces sary for inspection and adjustment. Refer to DLN-247,
"Removal and Installation".
Total Preload Torque
1. Remove the side flanges if necessary. Refer to "Side Flange".
CAUTION:
The side flanges shaft must removed in order to measure total preload torque.
2. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
3. Rotate the drive pinion at least 20 times to check for smooth operation of the bearings.
4. Measure the total preload torque using Tool.
NOTE:
Total preload torque = Drive pinion bearing preload torque +
Side bearing preload torque
• If the measured value is out of the specification, check and adjust each part. Adjust the drive pinion
bearing preload torque first, then adjust the side bearing preload torque.
CAUTION:
Select a side bearing adjusting wash er for right and left individually.
Drive Gear Runout
1. Drive pinion lock nut 2. Companion flange3. Front oil seal
4. Drive pinion front bearing 5. Collapsible spacer6. Drive pinion rear bearing
7. Drive pinion height adjusting washer 8. Drive pinion 9. Gear carrier
10. Drive gear 11. Pinion mate shaft12. Lock pin
13. Pinion mate gear 14. Pinion mate thrust washer 15. Side gear
16. Side gear thrust washer 17. Differential case18. Side bearing
19. Side bearing adjusting washer 20. Bearing cap 21. Carrier cover
22. Filler plug 23. Drain plug24. Side oil seal
Tool number : ST3127S000 (J-25765-A)
Total preload torque:
2.05 - 4.11 N·m (0.21 - 0.42 kg-m, 19 - 36 in-lb)
SPD884
If the total preload torque is greater than specificationOn drive pinion bearings: Replace the collapsible spacer.
On side bearings: Use thinner side b earing adjusting washers by the same
amount on each side. Refer to DLN-268, "
Inspection and Adjust-
ment".
If the total preload torque is less than specification On drive pinion bearings: Tighten the drive pinion lock nut.
On side bearings: Use thicker side b earing adjusting washers by the same
amount on each side. Refer to DLN-268, "
Inspection and Ad-
justment".
Revision: March 2010 2008 QX56

DLN-254
< DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
• If the tooth contact is near the face (face contact), or near the heel
(heel contact), use a thicker drive pinion height adjusting washers
to move the drive pinion closer to the drive gear.
Refer to DLN-268, "
Inspection and Adjustment".
• If the tooth contact is near the flank (flank contact), or near the toe (toe contact), use a thinner drive pinion height adjusting washers to
move the drive pinion farther from the drive gear.
Refer to DLN-268, "
Inspection and Adjustment".
Backlash
1. Fit a dial indicator to the drive gear face to measure the back- lash.
• If the backlash is outside of the specification, change the thickness of the side bearing adjusting washers.
CAUTION:
Do not change the total thickness of side bearing adjusting washers as it will change the side bearing
preload torque.
Companion Flange Runout
PDIA0440E
PDIA0441E
Backlash : 0.13 - 0.18 mm (0.0051 - 0.0070 in)
If the backlash is greater than specification:
Make side bearing adjusting washer thicker on drive
gear back side, and side bearing adjusting washer
thinner on drive gear tooth side by the same amount.
Refer to DLN-268, "
Inspection and Adjustment".
If the backlash is less than specification: Make side bearing adjusting washer thinner on drive
gear back side, and side bearing adjusting washer
thicker on drive gear tooth side by the same amount.
Refer to DLN-268, "
Inspection and Adjustment".
SPD513
Revision: March 2010 2008 QX56

DLN-262
< DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
7. If the pulling force is outside the specification, use a thicker or
thinner side bearing adjusting washer to adjust. Refer to DLN-
268, "Inspection and Adjustment".
CAUTION:
Select a side bearing adjust ing washer for right and left
individually.
8. Record the total amount of washer thickness required for the correct side bearing preload torque.
ASSEMBLY
Drive Pinion Assembly
1. Install the drive pinion front and rear bearing outer races using Tools.
CAUTION:
Do not reuse drive pinion fron t and rear bearing outer race.
2. Select a drive pinion height adjusting washer. Refer to DLN-268, "
Inspection and Adjustment".
3. Install the selected drive pinion height adjusting washer to the drive pinion. Press the drive pinion rear bearing inner race to it
using Tool.
CAUTION:
• Install the drive pinion hei ght adjusting washer in the
proper direction as shown.
• Do not reuse drive pinion rear bearing inner race. If the pulling force is
less than the specification:
Use a thicker side bear ing adjusting washer.
If the pulling force is gr eater than the specification:
Use a thinner side bear ing adjusting washer.
SPD772
Tool number A: ST15310000 ( — )
B: ST35325000 ( — )
C: ST30621000 ( — )
SPD992
Tool number : ST30022000 ( — )
SPD377
Revision: March 2010 2008 QX56

P2A00, P2A03 A/F SENSOR 1EC-389
< COMPONENT DIAGNOSIS > [VK56DE]
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10.CHECK INTERMITTENT INCIDENT
Perform GI-35, "
How to Check Terminal" and GI-38, "Intermittent Incident".
OK or NG
OK >> GO TO 11.
NG >> Repair or replace.
11 .REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air f uel ratio (A/F) sensor 1.
CAUTION:
• Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
• Before installing new A/F senso r, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
>> GO TO 12.
12.CONFIRM A/F ADJUSTMENT DATA
1. Turn ignition switch OFF and then ON.
2. Select “A/F ADJ-B1” and “” in “DATA MONITOR” mode with CONSULT-lll.
3. Make sure that “0.000” is displayed on CONSULT-lll screen.
OK or NG
OK >> INSPECTION END
NG >> GO TO 13.
13.CLEAR THE SELF-LEARNING DATA
With CONSULT-lll
1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-lll.
3. Clear the self-learning control coefficient by touching “CLEAR”.
Without CONSULT-lll
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF.
3. Disconnect mass air flow sensor harness connector.
4. Restart engine and let it idle for at least 5 seconds.
5. Stop engine and reconnect mass air flow sensor harness con- nector.
6. Make sure DTC P0102 is displayed.
7. Erase the DTC memory. Refer to EC-55, "
Malfunction Indicator
Lamp (MIL)".
8. Make sure DTC P0000 is displayed.
>> GO TO 14.
14.CONFIRM A/F ADJUSTMENT DATA
1. Turn ignition switch OFF and then ON.
2. Select “A/F ADJ-B1” and “A/F ADJ-B2” in “DATA MONITOR” mode with CONSULT-IIl.
3. Make sure that “0.000” is displayed on CONSULT-IIl screen.
>>INSPECTION END
BBIA0368E
Revision: March 2010 2008 QX56

EXL-112
< ON-VEHICLE REPAIR >
ADJUSTMENT AND INSPECTION
• See that vehicle is unloaded (except for full levels of coolant,engine oil and fuel, and spare tire, jack, and tools). Have the driver
or equivalent weight placed in driver seat.
Adjust aiming in the vertical direction by turning the adjustment
screw.
NOTE:
Access adjustment screw from underneath front bumper. Turn screw
clockwise to raise pattern and counterclockwise to lower pattern.
1. Set the distance between the screen and the center of the fog lamp lens as shown.
2. Turn front fog lamps ON.
3. Adjust front fog lamps using adjusting screw so that the top edge of the high intensity zone is 200 mm (7.9 in) below the height of
the fog lamp centers as shown.
• When performing adjustment, if necessary, cover the head-lamps and opposite fog lamp.
SEL350X
MEL327G
MEL328GA
Revision: March 2010 2008 QX56

ON-VEHICLE SERVICEFSU-7
< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
ON-VEHICLE SERVICE
Front Suspension PartsINFOID:0000000001534627
Check front suspension parts for excessive play, cracks, wear and
other damage.
• Shake each front wheel to check for excessive play. If looseness is noted, inspect wheel bearing end play, then check
ball joint end play. Refer to FA X - 6 , "
On-Vehicle Inspection and Ser-
vice" and FSU-7, "Front Suspension Parts".
• Make sure that the cotter pin is inserted (4WD only).
• Retighten all nuts and bolts to the specified torque.
• Check shock absorber for oil leakage and other damage.
• Check suspension ball joint for grease leakage and ball joint dust cover for cracks and other damage.
Front Wheel AlignmentINFOID:0000000004915023
PRELIMINARY INSPECTION
WARNING:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specificat ion, inspect and replace any damaged or worn suspension parts before making
any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to WT-45, "
Inspection".
4. Check the wheel bearing axial end play. Refer to FAX-6, "
On-Vehicle Inspection and Service" .
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height. Refer to FSU-25, "
Wheelarch Height (Unladen*1)" .
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.
• This type of alignment is re commended for any NISSAN vehicle.
• The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.
• The alignment machine itself should be ca pable of accepting any NISSAN vehicle.
• The alignment machine should be checked to ensure that it is level.
2. Make sure the alignment machine is properly calibrated. Suspension component torques : Refer to
FSU-14,
"Component" . SMA525A
SFA392B
Revision: March 2010 2008 QX56

SUNROOF SYSTEMRF-51
< ON-VEHICLE REPAIR >
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GAP ADJUSTMENT
NOTE:
If any gap or height difference between glass lid and roof panel is found, check glass lid fit and adjust as fol-
lows:
1. Open sunshade assembly.
2. Loosen glass lid securing screws (two each on left and right sides), then tilt glass lid down.
3. Manually adjust glass lid from outside of v ehicle so it resembles "A - A" as shown.
4. After adjusting glass lid tilt glass lid up and tighten screws.
5. Tilt glass lid up and down several times to check that it moves smoothly.
HEIGHT DIFFERE NCE ADJUSTMENT
If an excessive height difference between glass lid assemb ly and roof panel is found, adjust in the following
manner:
1. Remove headlining. Refer to INT-17, "
Removal and Installation".
2. Loosen sunroof frame assembly nuts and sunroof bracket bolts.
3. Add shims until gap is within specification "A-A". NOTE:
Temporarily snug nuts and bolts to prevent movement between each adjustment.
4. Tilt glass lid assembly up and down several times to check that it moves and seals properly.
5. Tighten sunroof frame assembly nuts and sunroof bracket bolts. NOTE:
First tighten left front then right rear sunroof frame assembly to prevent uneven torque while tightening
remaining sunroof bracket bolts.
6. Install headlining. Refer to INT-17, "
Removal and Installation".
WIIA0304E
Revision: March 2010 2008 QX56

RSU-6
< ON-VEHICLE MAINTENANCE >
REAR SUSPENSION ASSEMBLY
ON-VEHICLE MAINTENANCE
REAR SUSPENSION ASSEMBLY
On-Vehicle Inspection and ServiceINFOID:0000000001534667
Check all of the component mountings for any excessive looseness, or back lash. Check the components for
any excessive wear, damage, or abnormal conditions. Repair or replace the components as necessary.
SHOCK ABSORBER INSPECTION
• Check the shock absorbers for any air leaks or damage, and replace as necessary.
• Check the hoses for any air leaks or damage, and replace as necessary.
Wheel Alignment InspectionINFOID:0000000001534668
Rear Wheel Alignment Adjusting Bolts
PRELIMINARY INSPECTION
WARNING:
Always adjust the alignment with the vehicle on a flat surface. Use CONSULT-III “EXHAUST SOLE-
NOID” active test to release the air pressure from the rear load leveling air suspension system.
NOTE:
If alignment is out of specificat ion, inspect and replace any damaged or worn rear suspension parts before
making any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for runout and damage. Refer to WT-45, "
Inspection" .
4. Check the wheel bearing axial end play.
5. Check the shock absorbers. Refer to RSU-15, "
Removal and Installation" .
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height. Refer to RSU-29, "
Wheelarch Height (Unladen*1)" .
WEIA0102E
1. Rear lower link adjusting bolt, LH 2. Front lower link adjusting bolt, LH 3. Front lower link adjusting bolt, RH
4. Rear lower link adjusting bolt, RH
Axial end play : 0 mm (0 in)
Revision: March 2010 2008 QX56