Datsun 1000 - Page 96

Rear
4
1e 13
Crown wheel and
Pinion
Mating
Numbers and Pinion Head
Variation from Stand rd
Figure
Units of 0 01 m
thickness
of
washer
requ
rcd
The secund method entails
the alteration of
the
existing
washer thickness to
compensate
for the new
pinion
head variation
using
the old
pinion
head variation
as a
guide
Note that the
pinion
head variation
from standard
figure
is
given
in units of 0 0
mm
To
Adjust
Pinion Position
Method
I
With
special
tools
1
Instal
the
front and rear
bearing
outer
cones to the
carrier
2
Instal
the rear
bearing
inner cone
assembly
and
original adjusting
washer
to
the
dummy
pinion
3 Fit the
dummy pinion
to the carrier
and
instal
the
fron
t
taper bearing
and the
pinion
flange
NOTH Do
not instal
the
bearing pre
load
spacer
at this
point
4
Instal
and
tighten
the
flange
retaining
nut
until the
correct
initial
turning torque
of
the
pinion
is
ohtained see
specifications
This should
be checked
with
a
pre
load
measuring
gauge
or
spring
scale
and cord
5 Mount
the arbor
into
the differential
case carrier
bearing
bores so
that the
gauge
rod is
directly
over the
pinion
head
6
Using
feeler
gauges
check
the clearance between
the
pinion
head and
the
tip
of
the
gauge
rod
and note the
measurement
7
Calculate
the thickness of washer
required
to
obtain correct
pinion position
from
the
following
equation
W N H
xO OI
0 2 T in
mm
Definition
W thickness of
adjusting
washer fitted
N clearance
figure
obtained in
6 with feeler
gauges
H
pinion
head variation
figure
on
the
pinion
head
T thickness
of washer
reR
uired to
correctly position
pinion
Example
W 2 95 mm
N O 4mm
H I
Therefore
2 95 04 I x
0
01 0 2 3 16
mm
Thickness
of washer
required
to
orrectly
positiqn
pinion
is
3 16 mm 0 1244 in
8 Remove the
dummy pinion assembly
from
the
carrier and withdraw the rear
bearing
inner
cone
and old
adjusting
washer
from the
dummy pinion
9
Instal
the washer as calculated to the
pinion
and
refit the
rear
bearjng
inner
cone
NOTE
Ensure that the
chamfer
on the
adjusting
washer
is
towards the
pinioll
head
Tu
Adjust
Pinion Position
Method
2 Without
special
tools
In the event of the arbor and
gauge
kit
not
being
available
it will be
necessary
to
use the washer
removed
from
behind the
rear
bearing
inner cone
plus
or
minus as
the
case
may
be the
figure
etched on
the new
pinion
as
a
starting point
for
pinion position
adjustment
This method
of
adjustment
entails
assembling
the
pinion
and
adjusting
pinion bearing
pre
load
fitting
crown
wheel and
differentia
assembly
and
adjusting
the
backlash and
taking
teeth
97
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