Nissan Silvia. Manual — part 313

SPD024A

DRIVE PINION HEIGHT

NMPD0040S01

1.

First prepare Tools for pinion height adjustment.
1 Dummy shaft (KV38103910)
2 Height gauge (KV38100120)
3 Stopper (KV38100140)

2.

To simplify the job, make a chart, like the one below, to orga-
nize your calculations.

LETTERS

HUNDREDTHS OF A MILLIMETER

H: Head number

N: Measuring clearance

SPD542

3.

Write the following numbers down the chart.
H: Head number

SPD922

4.

Set Tool (Dummy shaft) as shown below and tighten drive pin-
ion nut carefully to correct preload of 1.0 to 1.3 N·m (10 to 13
kg-cm, 8.7 to 11.3 in-lb).

Tool number: KV38103910

SPD598

5.

Attach Tool (Height gauge) to gear carrier, and measure the
clearance between the height gauge and the dummy shaft
face.

6.

Substitute these values into the equation to calculate the thick-
ness of the washer.

GI

MA

EM

LC

EC

FE

CL

MT

AT

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

REAR FINAL DRIVE

R200

Adjustment (Cont’d)

PD-21

SPD531A

7.

Select the proper pinion height washer.

Drive pinion height adjusting washer:

Refer to SDS (PD-32).

If you cannot find the desired thickness of washer, use washer
with thickness closest to the calculated value.
Example:

Calculated value ... T = 3.22 mm
Used washer ... T = 3.21 mm

SPD542-A

— Washer selection when replacing hypoid gear set —
Drive pinions may be different in height due to the manufacturing
process. Use a washer of proper thickness to adjust the height of
new drive pinion. Select the washer as follows:

REAR FINAL DRIVE

R200

Adjustment (Cont’d)

PD-22

SPD532A

Drive pinion height adjusting washer:

Refer to SDS (PD-33).

SIDE BEARING PRELOAD

NMPD0040S03

1.

To simplify the job, make a chart like the one below to orga-
nize your calculations.

LETTERS

VALUE

A: Left housing

B: Right housing

C: Differential case

D: Differential case

H: (+) or (−): ring gear

E: Left side bearing (= 21 − Measured height)

F: Right side bearing (= 21 − Measured height)

G: Side bearing spacer (= 8.1 − Measured thickness)

X:

1.97

Y:

2.07

PD358

2.

Write the following numbers down in the chart.
If numbers for A, B, C, D and H are not given, regard them as
zero.
A & B: Figures marked on gear carrier

PD359

C & D: Figures marked on differential case

GI

MA

EM

LC

EC

FE

CL

MT

AT

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

REAR FINAL DRIVE

R200

Adjustment (Cont’d)

PD-23

SPD576

H: Figure marked on ring gear
Do not confuse negative and positive values.

SPD025A

3.

Calculate “E” and “F” as follows:

E & F = 21 mm (0.83 in) − Measured bearing height

Bearing height can be measured as follows:

a.

Measure height of bearing race which will be used as a base
for the opposite side of a side bearing assembly.

SPD026A

b.

Set bearing assembly to be measured on the base race and
measure the total height.
Lubricate bearing assembly and turn it several times to
settle it on the base for accurate measurement.

c.

Subtract base race height from total height.

SPD544

4.

Calculate “G”.
G: This is the difference in thickness of side spacer from stan-
dard width [8.10 mm (0.3189 in)].

G = 8.10 mm (0.3189 in) − Measured thickness

LETTERS

VALUE

A: Left housing

B: Right housing

C: Differential case

D: Differential case

H: (+) or (−): ring gear

E: Left side bearing (= 21 − Measured height)

REAR FINAL DRIVE

R200

Adjustment (Cont’d)

PD-24