Infiniti F50. Manual - part 730

 

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Infiniti F50. Manual - part 730

 

 

REAR FINAL DRIVE ASSEMBLY

RFD-25

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RFD

5.

Install front oil seal with Tool.Refer to 

RFD-6, "Removal and Installation"

 .

6.

Install companion flange, and tighten pinion nut to minimum.

Ascertain that threaded portion of drive pinion and drive pinion nut
are free from oil or grease.

CAUTION:

The drive pinion nut is not reusable. Never reuse drive pinion
nut.

7.

Tighten the drive pinion nut by very small degrees until the spec-
ified preload in achieved, when checking the preload, turn drive
pinion in both directions several times.

●

If pinion bearing preload is too small, tighten the Drive pinion nut more.

●

If pinion bearing preload is too great, replace pinion bearing adjusting spacer.

INSTALLATION OF DIFFERENTIAL CASE ASSEMBLY

1.

Select side bearing adjusting washer.
Refer to 

RFD-29, "SIDE BEARING ADJUSTING WASHERS"

 .

2.

Install differential case assembly with side bearing outer races
into gear carrier.

SPD896

Tool number

: ST30720000 (J25405)

Tool number

: KV40104000 ( – )

SDIA1011E

Tool number

: ST3127S000 (See J25765-A)

Pinion bearing preload

             :  2.65 - 3.23 N·m (0.27 - 0.32 kg-m,  24 - 28 in-lb)

SDIA1007E

SPD919

RFD-26

REAR FINAL DRIVE ASSEMBLY

3.

Insert left and right side bearing adjusting washers in place
between side bearings and carrier.

4.

Align mark on bearing cap with that on gear carrier and install
bearing cap on gear carrier.

5.

Install side oil seal. Refer to 

RFD-8, "Removal and Installation"

 .

6.

Measure ring gear-to-drive pinion backlash with a dial indicator
at several point.

●

It backlash is too small, adjustment of washer thickness is required. Decrease thickness of left shim and
increase thickness of right by the same amount.
If backlash is too great, reverse the above procedure.

Never change the total amount of washers as it will change the bearing preload.

7.

Check total preload with Tool.

When checking preload, turn drive pinion in both directions several times to seat bearing rollers correctly.

SPD924

: 88 - 98 N·m (9.0 - 9.9kg-m, 65 - 72 fl-lb)

SPD889

Tool number

: KV38100200 (J26233)

Ring gear backlash

: 0.10 - 0.15 mm (0.0039 - 0.0059 in) less

SPD513

Tool number

: ST3127S000 (See J25765-A)

SDIA1007E

Total preload

: 2.84 - 3.75 N·m (0.29 - 0.38 kg-m, 26 - 33 in-lb)

REAR FINAL DRIVE ASSEMBLY

RFD-27

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●

If preload is too great, remove the same amount of washer to each side.

●

If preload is too small, add the same amount of washer to each side.

Never add or remove a different number of washers for each side. Difference in number of washers will
change ring gear to drive pinion backlash.
8.

Recheck ring gear to drive pinion backlash. Increase or decrease in thickness of shims will cause change
to ring gear to pinion backlash.

●

Check whether the backlash varies excessively in different places. Foreign matter may be caught
between the ring gear and the differential case causing the trouble.

●

The backlash can vary greatly even when the ring gear runout is within a specified range. In that case,
replace the hypoid gear set or differential case.

9.

Check runout of ring gear with a dial indicator.

10. Check tooth contact.

Refer to 

RFD-12, "TOOTH CONTACT"

  .

11. Install rear cover. Apply liquid sealant to rear cover side and

install gear carrier.

Runout limit

: 0.05 mm (0.0020 in) less

SPD524

SDIA0970E

RFD-28

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

PFP:00030

General Specifications

EDS000YP

Ring Gear Runout

EDS000YQ

Unit: mm (in)

Side Gear Adjustment 

EDS000YR

Unit: mm (in)

AVAILABLE SIDE GEAR THRUST WASHERS 

Unit: mm (in)

Applied model

VK45DE  engine

5A / T

Final drive model

R200 (2 

−

 pinion)

Gear ratio

3.133

Number of teeth (Ring gear / drive pinion)

47 / 15

Oil capacity (Approx.)   

 (US pt, lmp pt)

1.4 liter (3 US pt, 2 - 1/2 Imp pt)

Type

R200 

Ring gear runout limit

0.05 (0.0020) less

Type

R200

Clearance limit between side gear and  differential case   mm (in)

0.20 (0.0079) less

Type

R200

Thrust washer

Thickness

Part number

0.75 (0.0295)

38424 0C000

0.78 (0.0307)

38424 0C001

0.81 (0.0319)

38424 0C002

0.84 (0.0331)

38424 0C003

0.87 (0.0343)

38424 0C004

0.90 (0.0350)

38424 0C005

0.93 (0.0366)

38424 0C006

 

 

 

 

 

 

 

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