2006 INFINITI M35 Factory Service Manual

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INFINITI M35 2006 Factory Service Manual FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
ASSEMBLY INSPECTION AND ADJUSTMENT
Before inspection and adjustment, drain gear oil.
Total Preload Torque
1. Rotate drive pinion ba

FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
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 preload torque + Side
bearing preload 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.
34. Side shaft bearing 35. Extension tube retainer 36. Side shaft oil seal
37. Dust sealed 38. Side shaft
A: Oil seal lip
B: Screw hole
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
:Apply gear oil.
:Apply anti-corrosion oil.
:Apply Genuine Silicone RTV or equivalent. Refer to GI-48, "
Recommended Chemical Products and Sealants" .
:Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to GI-48, "
Recommended Chemical
Products and Sealants" .
Tool number A: ST3127S000 (J-25765-A)
Total preload torque:
1.56 - 2.65 Nꞏm (0.16 - 0.27 kg-m, 14 - 23 in-lb)
PDIA0792J
When the preload torque is large
On pinion bearings: Decrease the drive pinion bearing adjusting washer and drive pinion
adjusting washer thickness. Refer to FFD-36, "
Drive Pinion Bearing
Adjusting Washer" and FFD-36, "Drive Pinion Adjusting Washer" .
On side bearings: Increase the side bearing adjusting shim thickness. Refer to FFD-36,
"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-36, "
Drive Pinion Bearing
Adjusting Washer" and FFD-36, "Drive Pinion Adjusting Washer" .
On side bearings: Decrease the side bearing adjusting shim thickness. Refer to FFD-36,
"Side Bearing Adjusting Shim" .

Page 3394 of 5621

INFINITI M35 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLY
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Revision: 2006 January2006 M35/M45
Drive Gear Runout
1. Remove carrier cover. Refer to FFD-20, "Differential Assembly" .
2. Fit a d

Page 3395 of 5621

INFINITI M35 2006 Factory Service Manual FFD-18
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
4. If tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).
PDIA0667E

Page 3396 of 5621

INFINITI M35 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLY
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Revision: 2006 January2006 M35/M45
If the tooth contact is near the face (face contact), or near the
heel (heel contact), th

FRONT FINAL DRIVE ASSEMBLY
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If the tooth contact is near the face (face contact), or near the
heel (heel contact), thicken pinion height adjusting washers to
move drive pinion closer to drive gear.
Refer to FFD-36, "
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-36, "
Pinion Height Adjusting Washer" .
Backlash
1. Remove carrier cover. Refer to FFD-20, "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-36, "
Side Bearing Adjusting Washer" .
When the backlash is small:
Increase side bearing adjusting washer thickness.
Refer to FFD-36, "
Side Bearing Adjusting Washer" .
SDIA0009J
Runout limit: 0.18 mm (0.0070 in)
Runout limit: 0.13 mm (0.0051 in)
PDIA0646E

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INFINITI M35 2006 Factory Service Manual FFD-20
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
c. If the runout value is still outside of the limit after the check and repair, replace companion flange.
DISASSEMBLY
Side Shaft A

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INFINITI M35 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLY
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Revision: 2006 January2006 M35/M45
7. Remove differential case assembly from gear carrier.
8. Remove side oil seal (right side) from side r

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INFINITI M35 2006 Factory Service Manual FFD-22
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 January2006 M35/M45
13. Remove side bearing inner race.
To prevent damage to bearing, engage puller jaws in groove
().
CAUTION:
To prevent d

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INFINITI M35 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLY
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Revision: 2006 January2006 M35/M45
19. Turn pinion mate gear, then remove pinion mate gears, pinion
mate thrust washers, side

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