Datsun 1000 - Page 97

14 Rear
Axle
markings
with red
lead or
engineers
blue
This is a trial and
error method
until a
satisfactory
marking
is
obtained
If a new
crown
wheel
and
pinion
are
to be fitted with
the
old
pinion
bearing
it is a
relatively simple
matter
to
calculate the thickness
of the
pinion
positioning
washer if
the washer from the
old
pinion
is
kept
intact and used
again taking
into
consideration the
markings
on
the old
and
new
pinions
Example
I
If
both
pinion markings are
0 or
zero
the
original
washer will be correct
If
the old
pinion marking
is
0 or zero
and
the new
pinion marking
is 2
then
0
02 mm
must
be
SUBTRACTED from the
original
washer
thickness
Again
if the
oe
pinion
mark
is 2 then
0 02 mm
must be ADDED to the
original
washer thickness to
give
the
correct
pinion position
Example
2
Where
the old
pinion marking
is
2
and the new
pinion
marking
is 2
the
position
is
slightly
more
complicated
As 0
02 mm was added
to the
washer
thickness fur a
zero marked
piflion
to
compensate
for the 2
mark on
the
old
pjnion
head the 0
02 mm must now
be
subtracted from
the
present
washer thickness and
a
further 0 02 mm
subtracted for the 2
marking
on the new
pinion
head
Thus
0
04
mm should be
subtracted from the
washer
thickness when
replacing
an
old
pinion
marked 2
with a
new
pinion
marked
t
2
The
pinion
head
thickness
as calculated
in
the
previous
paragrap
is an
accurate
starting point
for
pinion position
adjustment
but final assessment will
be influenced
by
the
crownwheel tooth
contact
markings
taken
after
the
crownwheel
to
pinion
backlash has
been
made
TO
ADJUST PINION BEARING PRE LOAD
I
With
the
selected
pinion positioning
washer
fitted
etween the rear
bearing
inner cone
and
pinion
head
instal
a
ncloY
bearing spacer
to the
pinion
NOTE
Ensure
that
the
chamfer on the
adjusting
washer
is
awards
the
pinion
head
2 Instal
a new oil seal
in
the carrier and insert the
pinion assembly
into
the
carrier and
through
the
front
taper
bearing
and oil
seal
NOTE Lubricate
the oil
seal
lips
and
bearings
bur
ensure
that the
pinion
thread nut
and
washer
are
free of
oil or
grease
3 Fit the
plOlOn
flange
washer
and
retaining
nut
during
the
tightening
of
the
retaining
nut
rotate the
pinion
to seat the
beariitgs
NOTE Tighten
the
retaining
nut a little at
a
time
checking
the
bearing
pre
load
frequently
to avoid
exceeding the
specified
bean
zg pre
uad and
rewillillg
Ill
wrque
f
see
specifications
for permissable
limits on
bearing pre
load and
nut
rorque
Do not
slacken
back
the
flange
retaining nut
if
the
speCified bearing pre
load is exceeded il is essenlia ill this
case In renew the
compressible bearing
spacer
4
Recheck
the
pinion
positiun
to ensure Ihat there
has
been
no
alteration
in
height
TO
ASSEMBLE AND
ADJUST DIFFERENTIAL
1
Instal the
side
gears
and
pinions together
wi th
mating
thrust
washers into their former
positions
in the
differential case
2
Instal
the
differential
shaft
aligning
the hole
in
he
shaft
with the
hole
in the case
for the lock
pin
3 Check
the clearance
by
feeler
gauge
between
the
side
gears
and thrust
washers Clearance
should
be within
the
limits of 0 10 0 20 mm 0
004 0 008 in If
necessary replace
the
thrust washers to obtain
the
correct
clearance
4
Instal
the
differential shaft
lock
pin
from the
right
side
of
the case
and secure in
position
by
peening
the hole
5
Position the crown wheel on
the differential case
according
to the
marks
made on
dismantling
6
Instal
the
crownwheel
retaining
bolts
with new
lock
plates Tighten
the
bolts
progressively
a little at a time
in
a
diagonal
pattern
to
the
specified
torque
Secure
the
bolts
by
turning
the
lock
plate
tabs
against
the
bolt heads
IDENTIFICATION LETTER AND VARIATION FIGURE
Carrier
Bearing Housing
Variation from Standard
Figures
Units of
1
01 mm
98
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