Oil INFINITI FX35 2008 Service Manual

FRONT FINAL DRIVE ASSEMBLYFFD-25
< SERVICE INFORMATION >
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7. Remove differential case assembly from gear carrier.
8. Remove side oil seal (right side) from side retainer.
9. Remove side bearing outer race with puller.
10. Remove O-ring from gear carrier.
11. Remove side oil seal (left side) from gear carrier.
12. Remove side bearing outer race with puller.
PDIA0671E
PDIA0672E
Tool number A: KV381054S0 (J-34286)
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Tool number A: KV381054S0 (J-34286)
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FFD-28
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
5. Press drive pinion assembly out of gear carrier.CAUTION:
Never drop drive pinion assembly.
6. Remove front oil seal.
7. Remove pinion front bearing inner race.
8. Remove drive pinion bearing adjusting washer and drive pinion adjusting washer.
9. Remove pinion rear bearing inner race and pinion height adjust- ing washer with replacer.
10. Tap pinion front/rear bearing outer races uniformly a brass rod or equivalent to removed.
CAUTION:
Be careful not to damage gear carrier.
INSPECTION AFTER DISASSEMBLY
Clean up the disassembled parts. Then, inspect if the parts are worn or damaged. If so, follow the measures
below.
ADJUSTMENT AND SELECTION OF ADJUSTING WASHERS (SHIMS)
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Tool number A: ST30031000 (J-22912-01)
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Content Conditions and Measures
Hypoid gear  If the gear teeth do not mesh or line-up correctly, determine the cause and adjust or replace as nec-
essary.
 If the gears are worn, cracked, damaged, pitted or chipped (by friction) noticeably, replace with new drive gear and drive pinion as a set.
Bearing  If any chipped (by friction), pitted, worn, rusted or scratched mark, or unusual noise from the bearing
is observed, replace as a bearing assembly (as a new set).
Side gear and Pinion mate
gear  If any cracks or damage on the surface of the tooth is found, replace.
 If any worn or chipped mark on the contact sides of the thrust washer is found, replace.
Side gear thrust washer and
pinion mate thrust washer  If it is chipped (by friction), damaged, or unusually worn, replace.
Oil seal  Whenever disassembled, replace.
 If wear, deterioration of adherence (sealing force lips), or damage is detected on the lips, replace them.
Differential case  If any wear or crack on the contact sides of the differential case is found, replace.
Companion flange  If any chipped mark (about 0.1 mm, 0.004 in) or other damage on the contact sides of the lips of the
companion flange is found, replace.
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FRONT FINAL DRIVE ASSEMBLYFFD-29
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Differential Side Gear Clearance
 Assemble the differential parts if they are disassembled. Refer to "Differential Assembly".
1. Place differential case straight up so that side gear to be mea-
sured comes upward.
2. Using feeler gauge, measure the clearance between side gear back and differential case at 3 different points, while rotating
side gear. Average the 3 readings, and then measure the clear-
ance of the other side as well.
CAUTION:
To prevent side gear from tilting, insert feeler gauges with
the same thickness from both sides.
3. If the back clearance is outside t he specification, use a thicker/
thinner side gear thrust washer to adjust. Refer to FFD-39,
"Inspection and Adjustment".
CAUTION:
Select a side gear thrust washer for right and left individually.
Side Bearing Preload
1. Make sure all parts are clean. Also, make sure the bearings are well lubricated with gear oil.
2. Press-fit side bearing outer race into side retainer with tool.
CAUTION:
 At first, using a hammer, tap bearing outer race until itbecomes flat to side retainer.
 Never reuse side bearing outer race.
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Side gear back clearance specification:
0.2 mm (0.008 in) or less.
(Each gear should rotate smoothly without excessive
resistance during differential motion.)
When the back clearance is large:
Use a thicker thrust washer.
When the back clearance is small: Use a thinner thrust washer.
PDIA0576E
Tool number A: ST30611000 (J-25742-1) B: KV31103000 (J-38982)
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FRONT FINAL DRIVE ASSEMBLYFFD-31
< SERVICE INFORMATION >
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9. If the turning torque is outside the specification, use a thicker/ thinner side bearing adjusting shim to adjust. Refer to FFD-39,
"Inspection and Adjustment".
10. Record the total amount of shim thickness required for the cor- rect carrier side bearing preload.
Pinion Gear Height
If the hypoid gear set has been replaced, se lect the pinion height adjusting washer.
1. Use the formula below to calculate pinion height adjusting washer thickness.
2. Select the proper pinion height adjusting washer. Refer to FFD-39, "
Inspection and Adjustment".
If impossible find the desired thickness of washer, us e washer with thickness closest to the calculated
value.
Pinion Bearing Preload
 Assemble the drive pinion parts if they are disassembled. Refer to "Drive Pinion Assembly".
1. Make sure all parts are clean. Also, make sure the bearings are well lubricated with gear oil.
2. Install companion flange (1). NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).If the turning torque is l
ess than the specified range:
Decrease the side bearing adjusting shim thickness.
If the turning torque is gr eater than the specification:
Increase the side bearing adjusting shim thickness.
SPD772
Washer selection equation:
T = T
0 + (t1 - t2)
T: Correct washer thickness
T
0: Removed washer thickness
t
1: Old drive pinion head letter “H × 0.01”
(“H”: machined tolerance 1/100 mm × 100)
t
2: New drive pinion head letter “H × 0.01”
(“H”: machined tolerance 1/100 mm × 100)
Example:
T = 3.21 + [(2 × 0.01) - (-1 × 0.01)] = 3.24
T
0:3.21
t
1:+2
t
2:-1
Example: Calculated value... T = 3.22 mm
Used washer... T = 3.21 mm
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FRONT FINAL DRIVE ASSEMBLYFFD-33
< SERVICE INFORMATION >
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2. Temporarily install pinion height adjusting washer (1).
When hypoid gear se t has been replaced Select pinion height adjusting washer. Refer to "Pinion Gear
Height".
When hypoid gear set has been reused Temporarily install the removed pinion height adjusting washer
or same thickness washer to drive pinion.
3. Install selected pinion height adjusting washer (2) to drive pin- ion. Press pinion rear bearing inner race (1) to it, using drift.
CAUTION:
 Pay attention to the direction of pinion height adjusting
washer. (Assemble as shown in the figure.)
 Never reuse pinion rear bearing inner race.
4. Temporarily assemble removed drive pinion adjusting washer and drive pinion bearing adjusting washer or same thickness
them to drive pinion.
5. Apply gear oil to pinion rear bearing, and assemble drive pinion into gear carrier.
6. Apply gear oil to pinion front bearing, and assemble pinion front bearing inner race to drive pinion assembly.
CAUTION:
Never reuse pinion front bearing inner race.
7. Using suitable spacer (A), press the pinion front bearing inner race to drive pinion as far as drive pinion nut can be tightened.
8. Adjust pinion bearing preload. If necessary, select the appropri- ate drive pinion adjusting washer and drive pinion bearing
adjusting washer. Refer to "Pinion Bearing Preload".
9. Using the drifts, install front oil seal as shown in figure. CAUTION:
 Never reuse oil seal.
 When installing, never incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oilonto the circumference of oil seal.
PDIA0971E
Tool number A: ST30032000 (J-26010-01)
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PDIA0681E
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Tool number A: ST33400001 (J-26082)
B: KV38102510 ( — )
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FFD-34
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
10. Install companion flange (1).NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).
11. Apply anti-corrosion oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive
pinion lock nut to drive pinion.
CAUTION:
Never reuse drive pinion lock nut.
12. Tighten to drive pinion lock nut, while adjust pinion bearing pre- load torque.
CAUTION:
 Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
 After adjustment, rotate dri ve pinion back and forth 2 to 3
times to check for unusual no ise, rotation malfunction,
and other malfunctions.
13. Install differential case assembly. Refer to "Differential Assem- bly".
CAUTION:
Never install carrier cover yet.
14. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and companion flange runout. Refer to
"Drive Gear Runout", "Tooth Contact" , "Backlash", "Companion Flange Runout".
Recheck above items. Readjust the above description, if necessary.
15. Check total preload torque. Refer to "Total Preload Torque".
16. Install carrier cover. Refer to "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.
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Tool number A: ST3127S000 (J-25765-A)
Drive pinion lock nut tightening torque:
127.4 - 245.0 N·m (13.0 - 25.0 kg-m, 94 - 181 ft-lb)
Pinion bearing preload: 0.78 - 1.57 N·m (0.08 - 0.16 kg-m, 7 - 13 in-lb)
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FRONT FINAL DRIVE ASSEMBLYFFD-37
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15. Install selected side bearing adjusting shim (1).
16. Apply multi-purpose grease to O-ring (2), and install it to side retainer.
CAUTION:
Never reuse O-ring.
17. Install side retainer assembly to gear carrier.
18. Install side retainer mounting bolts to the specified torque. Refer to "COMPONENTS (VQ35DE MODELS)", "COMPONENTS
(VK45DE MODELS)".
19. Using the drift, press-fit side oil seal so that its surface comes face to face with the end surface of the side retainer.
CAUTION:
 Never reuse oil seal.
 When installing, never incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oilonto the circumference of oil seal.
20. Using the drift, press-fit side oil seal so that its surface comes face to face with the end surface of gear carrier.
CAUTION:
 Never reuse oil seal.
 When installing, never incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oilonto the circumference of oil seal.
21. Apply multi-purpose grease to O-ring, and install it to gear car- rier.
CAUTION:
Never reuse O-ring.
22. Check and adjust drive gear runout, tooth contact, dr ive gear to drive pinion backlash, and total preload
torque. Refer to "Drive Gear Runout", "Tooth Contact", "Backlash", "Total Preload Torque".
Recheck above items. Readjust the above description, if necessary.
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Tool number A: ST33400001 (J-26082)
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Tool number A: KV38102100 (J-25803-01)
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FFD-38
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
23. Apply sealant to mating surface of carrier cover.Use Genuine Silicone RTV or equivalent. Refer to GI-44,
"Recommended Chemical Product and Sealant".
CAUTION:
Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mounting surfaces.
24. Install carrier cover on gear carrier and tighten mounting bolts with the specified torque. Refer to "COMPONENTS (VQ35DE
MODELS)", "COMPONENT S (VK45DE MODELS)".
Side Shaft Assembly
1. Using the drift, install side shaft oil seal.
CAUTION:
 Never reuse oil seal.
 When installing, n ever incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oil
onto the circumference of oil seal.
2. Install dust sealed.
3. Support side shaft bearing with the drift, then press side shaft (1) into the side shaft bearing using a press.
4. Apply multi-purpose grease to O-ring, and install it to extension tube retainer.
CAUTION:
Never reuse O-ring.
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Tool number A: KV38100200 ( — )
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Tool number A: ST30032000 (J-26010-01)
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SERVICE DATA AND SPECIFICATIONS (SDS)
FFD-39
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SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000001327488
Inspection and AdjustmentINFOID:0000000001327489
DRIVE GEAR RUNOUT
Unit: mm (in)
DIFFERENTIAL SIDE GEAR CLEARANCE
Unit: mm (in)
PRELOAD TORQUE
Unit: N·m (kg-m, in-lb)
BACKLASH
Unit: mm (in)
COMPANION FLANGE RUNOUT
Unit: mm (in)
SELECTIVE PARTS
Side Gear Thrust Washer
Applied model VQ35DE VK45DE
Final drive model F160A
Gear ratio 3.692
Number of teeth (Drive gear/Drive pinion) 48/13
Oil capacity (Approx.) (US pt, lmp pt)0.65 (1-3/8, 1-1/8)
Number of pinion gears 2
Drive pinion adjustment spacer type Solid
Item Runout limit
Drive gear back face 0.05 (0.0020)
Item Specification
Side gear backlash (Clearance between side gear and differential
case) 0.2 (0.008) or less
(Each gear should rotate smoothly without excessive resistance during differential motion.)
Item Specification
Pinion bearing (P
1) 0.78 - 1.57 (0.08 - 0.16, 7 - 13)
Side bearing (P
2) 0.78 - 1.08 (0.08 - 0.11, 7 - 9)
Side bearing to pinion bearing (Total preload)
(Total preload = P
1 + P2) 1.56 - 2.65 (0.16 - 0.27, 14 - 23)
Item Specification
Drive gear to drive pinion gear 0.10 - 0.15 (0.0039 - 0.0059)
Item Runout limit
Companion flange face 0.18 (0.0071)
Inner side of the companion flange 0.13 (0.0051)
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FL-10
< SERVICE INFORMATION >
FUEL TANK
FUEL TANK
ComponentINFOID:0000000001327110
Removal and InstallationINFOID:0000000001327111
REMOVAL
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-3, "
General Pre-
caution".
 Drain fuel from fuel tank if necessary. Refer to FL-4, "
Removal and Installation".
 Perform work on level place.
1. Perform steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP
ASSEMBLY” on main and sub fuel level sensor units. Refer to FL-4, "
Removal and Installation".
2. Remove tunnel stay. Refer to RSU-5, "
On-Vehicle Inspection and Service".
3. Remove exhaust front tube, center muffler and main muffler. Refer to EX-3, "
Checking Exhaust System".
4. Remove insulator.
5. Remove propeller shaft. Refer to PR-7, "
On-Vehicle Inspection".
6. Remove parking rear brake cables. Refer to PB-4, "
Component".
7. Compress coil spring and remove coil spring.
8. Remove rear suspension assembly.
9. Remove fuel tank protector.
1. Grommet 2. Fuel filler cap 3. Clip
4. Fuel filler tube protector 5. Fuel tank mounting band 6. Fuel tank protector
7. Insulator 8. Fuel tank 9. Vent tube
10. Vent hose 11. EVAP hose 12. Vent hose
13. Fuel filler hose 14. Fuel filler tube
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