Datsun 1000 Workshop Manual 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 1 0 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