stall INFINITI M35 2006 Factory Service Manual

REAR FINAL DRIVE ASSEMBLY
RFD-33
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RFD
Revision: 2006 January2006 M35/M45
10. Apply anti-corrosion oil to the thread and seat of drive pinion
lock nut, and temporarily tighten drive pinion lock nut to drive
pinion.
CAUTION:
Do not reuse drive pinion lock nut.
11. Adjust to the drive pinion lock nut tightening torque and pinion
bearing preload torque.
CAUTION:
Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
If the preload torque exceeds the specified value, replace
collapsible spacer and tighten it again to adjust. Do not
loosen drive pinion lock nut to adjust the preload torque.
After adjustment, rotate drive pinion back and forth 2 to 3
times to check for unusual noise, rotation malfunction,
and other malfunctions.
12. Install differential case assembly. Refer to RFD-33, "
Differential Assembly" .
CAUTION:
Do not install rear cover yet.
13. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and companion
flange runout. Refer to RFD-19, "
Drive Gear Runout" , RFD-20, "Tooth Contact" , RFD-21, "Backlash" ,
RFD-22, "
Companion Flange Runout" .
Recheck above items. Readjust the above description, if necessary.
14. Check total preload torque. Refer to RFD-19, "
Total Preload Torque" .
15. Install rear cover. Refer to RFD-33, "
Differential Assembly" .
Differential Assembly
1. Install side gear thrust washers with the same thickness as the
ones installed prior to disassembly or reinstall the old ones on
the side gears.Tool number A: ST3127S000 (J-25765-A)
Drive pinion lock nut tightening torque:
147 - 323 Nꞏm (15 - 32 kg-m, 109 - 238 ft-lb)
Drive pinion bearing preload:
2.65 - 3.23 Nꞏm (0.27 - 0.32 kg-m, 24 - 28 in-lb)
PDIA0765J
SDIA0193J

RFD-34
REAR FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
2. Install side gears and thrust washers into differential case.
CAUTION:
Make sure that the circular clip is installed to side gears.
3. Align 2 pinion mate gears in diagonally opposite positions, then
rotate and install them into differential case after installing thrust
washer to pinion mate gear.
4. Align the lock pin holes on differential case with shaft, and install
pinion mate shaft.
5. Measure side gear end play. If necessary, select the appropriate
side gear thrust washers. Refer to RFD-26, "
Differential Side
Gear Clearance" .
6. Drive a lock pin into pinion mate shaft, using a punch.
Make sure lock pin is flush with differential case.
CAUTION:
Do not reuse lock pin.
7. Align the matching mark of differential case with the mark of
drive gear, then place drive gear.
8. Apply thread locking sealant into the thread hole of drive gear.
Use Genuine High Strength Thread Locking Sealant or
equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
CAUTION:
Drive gear back and threaded holes shall be cleaned and
degreased sufficiently.
SDIA2025E
SDIA0195J
SPD030
SDIA2593E
SDIA2594E

REAR FINAL DRIVE ASSEMBLY
RFD-35
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RFD
Revision: 2006 January2006 M35/M45
9. Install drive gear on the mounting bolts, and then tighten to the
specified torque. Refer to RFD-18, "
COMPONENTS" .
CAUTION:
Tighten bolts in a crisscross fashion.
After tightening the bolts to the specified torque, tighten
the bolts additionally by turning the bolts 31 to 36
degrees.
10. Press side bearing inner races to differential case, using the drift
and the base.
CAUTION:
Do not reuse side bearing inner race.
11. Install differential case assembly with side bearing outer races
into gear carrier.
12. Measure side bearing preload. If necessary, select the appropri-
ate side bearing adjusting washers. Refer to RFD-27, "
Side
Bearing Preload" .
13. Insert selected left and right side bearing adjusting washers in
place between side bearings and gear carrier.
14. Align matching marks on bearing cap with that on gear carrier.
15. Install bearing caps and tighten bearing cap mounting bolts to
the specified torque. Refer to RFD-18, "
COMPONENTS" .
SDIA0247J
Tool number A: KV38100300 (J-25523)
B: ST33061000 (J-8107-2)
SPD353
SPD527
SPD558
SDIA1795E

RFD-36
REAR FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
16. Using the drift, drive side oil seals until it becomes flush with the
case end.
CAUTION:
Do not reuse oil seal.
When installing, do not incline oil seal.
Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of oil seal.
17. Check and adjust drive gear runout, tooth contact, drive gear to
drive pinion backlash, and total preload torque. Refer to RFD-
19, "Drive Gear Runout" , RFD-20, "Tooth Contact" , RFD-21,
"Backlash" , RFD-19, "Total Preload Torque" .
Recheck above items. Readjust the above description, if necessary.
18. Apply sealant to mating surface of rear cover.
Use Genuine Silicone RTV or equivalent. Refer to GI-48,
"RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS" .
CAUTION:
Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mounting surfaces.
19. Install rear cover on gear carrier and tighten mounting bolts with
the specified torque. Refer to RFD-18, "
COMPONENTS" .
20. Install side flange with the following procedure.
a. Attach the protector to side oil seal.
b. After the side flange is inserted and the serrated part of side
gear has engaged the serrated part of flange, remove the pro-
tector.
c. Put a suitable drift on the center of side flange, then drive it until
sound changes.
NOTE:
When installation is completed, driving sound of the side flange
turns into a sound which seems to affect the whole final drive.
d. Confirm that the dimension of the side flange installation (Mea-
surement A) in the figure comes into the following.Tool number : KV38100200 (J-26233)
SPD560
PDIA0961E
Tool number : KV38107900 (J-39352)
SDIA0822E
Measurement A: 326 - 328 mm (12.83 - 12.91 in)
SDIA1039E

RSU-1
REAR SUSPENSION
E SUSPENSION
CONTENTS
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SECTION RSU
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RSU
Revision: 2006 January2006 M35/M45
REAR SUSPENSION
PRECAUTIONS .......................................................... 2
Precautions .............................................................. 2
PREPARATION ........................................................... 3
Special Service Tools [SST] ..................................... 3
Commercial Service Tools ........................................ 3
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 4
NVH Troubleshooting Chart ..................................... 4
REAR SUSPENSION ASSEMBLY ............................. 5
On-Vehicle Inspection and Service .......................... 5
SUSPENSION ARM BALL JOINT AXIAL END
PLAY INSPECTION .............................................. 5
SHOCK ABSORBER INSPECTION ..................... 5
Wheel Alignment Inspection ..................................... 5
DESCRIPTION ...................................................... 5
PRELIMINARY INSPECTION ............................... 5
GENERAL INFORMATION AND RECOMMEN-
DATIONS .............................................................. 5
THE ALIGNMENT PROCESS .............................. 6
CAMBER INSPECTION ........................................ 6
TOE-IN .................................................................. 6
Components ............................................................. 7
Removal and Installation .......................................... 8
REMOVAL ........................................................
..... 8
INSTALLATION ..................................................... 8
SHOCK ABSORBER ................................................ 10
Removal and Installation ........................................ 10
REMOVAL ........................................................
... 10
INSPECTION AFTER REMOVAL ....................... 10
INSTALLATION ................................................... 10
Disassembly and Assembly ................................... 10
DISASSEMBLY ................................................... 10
INSPECTION AFTER DISASSEMBLY ............... 10
ASSEMBLY .......................................................... 11SUSPENSION ARM .................................................. 12
Removal and Installation ........................................ 12
REMOVAL ........................................................
... 12
INSPECTION AFTER REMOVAL ....................... 12
INSTALLATION ................................................... 13
RADIUS ROD ............................................................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................
... 14
INSPECTION AFTER REMOVAL ....................... 14
INSTALLATION ................................................... 14
FRONT LOWER LINK .............................................. 15
Removal and Installation ........................................ 15
REMOVAL ........................................................
... 15
INSPECTION AFTER REMOVAL ....................... 15
INSTALLATION ................................................... 15
REAR LOWER LINK & COIL SPRING ..................
... 16
Removal and Installation ........................................ 16
REMOVAL ........................................................
... 16
INSPECTION AFTER REMOVAL ....................... 16
INSTALLATION ................................................... 16
STABILIZER BAR ..................................................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................
... 17
INSPECTION AFTER REMOVAL ....................... 17
INSTALLATION ................................................... 17
SERVICE DATA ........................................................ 18
Wheel Alignment (Unladen)* .................................. 18
Ball Joint ................................................................. 18
Wheelarch Height (Unladen*) ................................. 18

RSU-2
PRECAUTIONS
Revision: 2006 January2006 M35/M45
PRECAUTIONSPFP:00001
PrecautionsNES000J2
When installing rubber bushings, final tightening must be carried out under unladen conditions with tires
on ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
–Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
After servicing suspension parts, be sure to check wheel alignment.
Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are pre-
oiled, tighten as they are.

RSU-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 January2006 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000J5
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
: ApplicableReference page
RSU-7RSU-10
—
—
—
RSU-7RSU-5RSU-17
NVH in PR section.
NVH in RFD section.
NVH in RAX and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEELS
DRIVE SHAFT
BRAKES
STEERING
Symptom REAR SUSPENSIONNoise
Shake
Vibration
Shimmy
Judder
Poor quality ride or
handling

RSU-6
REAR SUSPENSION ASSEMBLY
Revision: 2006 January2006 M35/M45
THE ALIGNMENT PROCESS
IMPORTANT:
Use only the alignment specifications listed in this Service Manual.
When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
–The alignment specifications programmed into your machine that operate these indicators may not be cor-
rect.
–This may result in an ERROR.
Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com-
pensate” the sensors (alignment targets or head units). DO NOT use this “Rolling Compensation”
method.
–Use the “Jacking Compensation Method”. After installing the alignment targets or head units, raise the
vehicle and rotate the wheels 1/2 turn both ways.
–See Instructions in the alignment machine you're using for more information on this.
CAMBER INSPECTION
Measure camber of both right and left wheels with a suitable alignment gauge.
Adjust in accordance with the following procedures.
If outside the standard value, adjust with adjusting bolt in front
lower link.
NOTE:
After adjusting camber, be sure to check toe-in.
TOE-IN
If toe-in is not within the specification, adjust with adjusting bolt in
rear lower link.
CAUTION:
Be sure to adjust equally on RH and LH side with adjusting bolt.
If toe-in is not still within the specification, inspect and replace any
damaged or worn rear suspension parts.Standard value
Camber : Refer to RSU-18, "
SERVICE DATA" .
SRA096A
SEIA0227E
SEIA0228E

RSU-8
REAR SUSPENSION ASSEMBLY
Revision: 2006 January2006 M35/M45
Refer to GI section for symbol marks in the figure. Refer to GI-9, "HOW TO USE THIS MANUAL" .
Removal and InstallationNES000J9
REMOVAL
1. Remove tire with a power tool.
2. Remove brake caliper with a power tool. Hang it in a place where it will not interfere with work. Refer to
BR-29, "
REAR DISC BRAKE" .
CAUTION:
Do not depressing brake pedal while brake caliper is removed.
3. Put matching marks on both disc rotor and the wheel hub and
bearing assembly, then remove disc rotor.
4. Remove rear under cover.
5. Remove wheel sensor from rear final drive.
6. Remove harness from rear final drive and rear suspension
member.
7. Remove center muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
8. Remove rear propeller shaft. Refer to PR-6, "
REAR PROPEL-
LER SHAFT" .
9. Remove stabilizer bar. Refer to RSU-17, "
STABILIZER BAR" .
10. Remove parking brake cable mounting bolt and separate park-
ing brake cable from vehicle and rear suspension member. Refer to PB-3, "
PARKING BRAKE CONTROL"
.
11. Remove rear lower link and coil spring. Refer to RSU-16, "
REAR LOWER LINK & COIL SPRING" .
12. Remove mounting bolt on lower side of shock absorber. Refer to RSU-10, "
SHOCK ABSORBER" .
13. Set jack under rear final drive.
14. Remove member stay from vehicle.
15. Remove rear pin stay mounting bolts and nuts.
16. Gradually lowering jack, remove rear pin stay and rear suspension assembly.
INSTALLATION
Installation is the reverse order of the removal. For tightening torque, refer to RSU-7, "Components" .
CAUTION:
Do not reuse non-reusable parts.
Assemble disc rotor and wheel hub and bearing assembly by
aligning each matching mark as shown in the figure when install-
ing disc rotor.
Perform the final tightening of each of parts under unladen con-
ditions, which were removed when removing rear suspension
assembly. Check the wheel alignment. Refer to RSU-5, "
Wheel
Alignment Inspection" .
Adjust neutral position of steering angle sensor after checking
the wheel alignment. Refer to BRC-6, "
Adjustment of Steering
Angle Sensor Neutral Position" .
Check for the following after finishing work.
1. Washer 2. Mounting seal 3. Bushing (upper side)
4. Distance tube 5. Mounting bracket 6. Bushing (lower side)
7. Bound bumper cover 8. Bound bumper 9. Shock absorber
10. Axle assembly 11. Upper seat 12. Coil spring
13. Ball seat 14. Rubber seat 15. Cotter pin
16. Suspension arm 17. Connecting rod mounting bracket 18. Connecting rod
19. Mount stopper 20. Rear lower link 21. Front lower link
22. Radius rod 23. Stabilizer Bushing 24. Stabilizer Clamp
25. Stabilizer bar 26. Rear suspension member 27. Member stay
28. Stopper rubber 29. Cap 30. Rear pin stay
SDIA2638E
SDIA2638E

RSU-10
SHOCK ABSORBER
Revision: 2006 January2006 M35/M45
SHOCK ABSORBERPFP:56210
Removal and InstallationNES000JA
REMOVAL
1. Remove tires from vehicle with a power tool.
2. Set a jack under rear lower link to relieve the coil spring tension.
3. Remove shock absorber lower end bolt with a power tool.
4. Gradually lower the jack to remove it from rear lower link.
5. Remove shock absorber assembly upper end nuts with a power
tool, and then remove shock absorber assembly from vehicle.
INSPECTION AFTER REMOVAL
Check shock absorber assembly for deformation, cracks, damage, and replace if there are.
Check welded and sealed areas for oil leakage, and replace if there are.
INSTALLATION
Installation is the reverse order of removal. For tightening torque. Refer to RSU-7, "Components" .
CAUTION:
Do not reuse non-reusable parts.
Perform final tightening of shock absorber assembly lower side (rubber bushing) under unladen condition
with tires on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel Alignment Inspection" .
Adjust neutral position of steering angle sensor after checking the wheel alignment. Refer to BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .
Disassembly and AssemblyNES000JB
DISASSEMBLY
CAUTION:
Make sure piston rod on shock absorber is not damaged when removing components from shock
absorber.
1. Remove mounting seal from mounting bracket.
2. Wrap a shop cloth around lower side of shock absorber and secure it in a vise.
CAUTION:
Do not set the cylindrical part of shock absorber in a vise.
3. Secure the piston rod tip so that piston rod does not turn, and
remove piston rod lock nut.
4. Remove washer, distance tube, bushing, bound bumper cover
and bound bumper from shock absorber.
INSPECTION AFTER DISASSEMBLY
Bound Bumper and Bushing
Check bound bumper cover and bushing for cracks and damage. Replace if there are.
FA-0274D
SEIA0218J