2005 INFINITI FX35 Service Manual

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Page 3169 of 4731

INFINITI FX35 2005 Service Manual FFD-18
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
COMPONENTS (VK45DE MODELS)
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearin

Page 3170 of 4731

INFINITI FX35 2005 Service Manual FRONT FINAL DRIVE ASSEMBLY FFD-19
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Revision: 2005 July 2005 FX
34. Side shaft bearing 35. Extension tube retainer 36. Side shaft oil seal
37. Dust sealed 38. S

Page 3171 of 4731

INFINITI FX35 2005 Service Manual FFD-20
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
ASSEMBLY INSPECTION AND ADJUSTMENT
Before inspection and adjustment, drain gear oil.
Total Preload Torque
1. Rotate drive pinion back and

FFD-20
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
ASSEMBLY INSPECTION AND ADJUSTMENT
Before inspection and adjustment, drain gear oil.
Total Preload Torque
1. Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
2. Rotate drive pinion at least 20 times to check for smooth opera- tion of the bearing.
3. Measure total preload with preload gauge.
NOTE:
Total preload torque = Pinion bearing torque + Side bearing
torque
If measured value is out of the specification, disassemble it to
check and adjust each part. Adjust the pinion bearing preload and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
Drive Gear Runout
1. Remove carrier cover. Refer to FFD-24, "Differential Assembly" .
2. Fit a dial indicator to the drive gear back face.
3. Rotate the drive gear to measure runout.
If the runout is outside of the repair limit, check drive gear
assembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive gear
may be deformed, etc.
CAUTION:
Replace drive gear and drive pinion gear as a set. Tool number : ST3127S000 (J-25765-A)
Total preload torque (With oil seal): 1.56 - 2.65 N·m (0.16 - 0.27 kg-m, 14 - 23 in-lb)
SDIA1649E
When the preload torque is largeOn pinion bearings: Decrease the drive pinion bearing adjusting washer and drive pinion adjusting washer thickness. Refer to FFD-40, "
Drive Pinion Bearing
Adjusting Washer" and FFD-40, "Drive Pinion Adjusting Washer" .
On side bearings: Increase the side bearing adjusting shim thickness. Refer to FFD-40,
"Side Bearing Adjusting Shim" .
When the preload torque is small On pinion bearings: Increase the drive pinion bearing adjusting washer and drive pinion adjusting washer thickness. Refer to FFD-40, "
Drive Pinion Bearing
Adjusting Washer" and FFD-40, "Drive Pinion Adjusting Washer" .
On side bearings: Decrease the side bearing adjusting shim thickness. Refer to FFD-40,
"Side Bearing Adjusting Shim" .
Runout limit: 0.05 mm (0.0020 in) or less
SPD886

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INFINITI FX35 2005 Service Manual FRONT FINAL DRIVE ASSEMBLY FFD-21
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Tooth Contact
1. Remove carrier cover. Refer to FFD-24, "Differential Assembly" .
2. Apply red le

Page 3173 of 4731

INFINITI FX35 2005 Service Manual FFD-22
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
4. If tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).
PDIA0667E
SDIA0517E

Page 3174 of 4731

INFINITI FX35 2005 Service Manual FRONT FINAL DRIVE ASSEMBLY FFD-23
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If the tooth contact is near the face (face contact), or near the
heel (heel contact), thicken p

FRONT FINAL DRIVE ASSEMBLY FFD-23
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Revision: 2005 July 2005 FX
If the tooth contact is near the face (face contact), or near the
heel (heel contact), thicken pinon height adjusting washers to
move drive pinion closer to drive gear.
Refer to FFD-40, "
Pinion Height Adjusting Washer" .
If the tooth contact is near the flank (flank contact), or near the
toe (toe contact), thin pinion height adjusting washers to move
drive pinion farther from drive gear.
Refer to FFD-40, "
Pinion Height Adjusting Washer" .
Backlash
1. Remove carrier cover. Refer to FFD-24, "Differential Assembly" .
2. Fit a dial indicator to the drive gear face to measure the back- lash.
If the backlash is outside of the specified value, change the
thickness of side bearing adjusting washer.
Companion Flange Runout
1. Fit a dial indicator onto the companion flange face (inner side of
the propeller shaft mounting bolt holes).
2. Rotate companion flange to check for runout.
3. Fit a test indicator to the inner side of companion flange (socket diameter).
4. Rotate companion flange to check for runout.
5. If the runout value is outside the runout limit, follow the proce- dure below to adjust.
a. Check for runout while changing the phase between companion flange and drive pinion by 90 ° step, and
search for the position where the runout is the minimum.
b. If the runout value is still outside of the limit after the phase has been changed, possible cause will be an assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for
these items and repair if necessary.
PDIA0440E
PDIA0441E
Backlash: 0.10 - 0.15 mm (0.0039 - 0.0059 in)
When the backlash is large: Decrease side bearing adjusting washer thickness.
Refer to FFD-40, "
Side Bearing Adjusting Washer" .
When the backlash is small: Increase side bearing adjusting washer thickness.
Refer to FFD-40, "
Side Bearing Adjusting Washer" .
SDIA0009J
Runout limit: 0.18 mm (0.0070 in) or less
Runout limit: 0.13 mm (0.0051 in) or less
PDIA0646E

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INFINITI FX35 2005 Service Manual FFD-24
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
c. If the runout value is still outside of the limit after the check and repair, replace companion flange.
DISASSEMBLY
Side Shaft Assembl

Page 3176 of 4731

INFINITI FX35 2005 Service Manual FRONT FINAL DRIVE ASSEMBLY FFD-25
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Revision: 2005 July 2005 FX
5. Remove side retainer.
6. Remove side bearing adjusting shim.
7. Remove O-ring from side retain

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