Datsun 1000 - Page 93

10 Rear Ade
TO REMOVE AND INSTAL
4 REAR
AXLE ASSEMRL1f
ll
Jack
up
the rear of the vehicle
and
support
it
on
stands
placed
under
the
jacking points
2
Raise
the axle
housing
and remove the road wheels
3
Disconnect the handbrake cable at the
equaliser
lever
4 Mark
across
the
pinion
and
universal
joint
flanges
to ensure
assembly
in
the
original
position
5
Remove the four nuts and bolts
connecting
the
universal
joint
flange
to the
pinion
flange
tie
the shaft
to
the
underbody
out of the
way
6
Disconnect the
hydraulic
brake
hose
from the
three
way
connector
on the
axle
casing
and
plug
the
flexible hose to
prevent
loss
of
fluid
and or
entry
of dirt
7
Remove the
shock absorber lower
maunting
retaining
nut on
each
rear
shock absorber and detach them
from the
sprillg
seats
8 Unscrew and
remove
the
securing
nuts from
each
of
the
spring
V
bolts and detach the
spring
seats and
pads
9 tift the axle
assembly
and withdraw it from one
side
clear of the
vehicle
or
alternatively
disconnect the rear
spring
shackles and lower the
assembly
to the
ground
Installation is a
reversal of the removal
procedure
but it
will be
necessary
to bleed
the
hydraulic
brake
system
and
check
the
handbrake
adjustment
PART
2 BEAR AXL E 1200 ee
MODELS
I DESCRIPI ION
The
rear
axle is a semi
floating type
with
hypoid
final
drive
gears
mounted
in
a detachable
carrier
The
crownwheel
and differential case
assembly
is
supported
in
the
carrier
by
two
tapered
roller
bearings
the
bearing pre
load and
crownwheel backlash
is
adjusted by
means
of shims
The
drive
pinion
is
supported
in the carrier
by
two
tapered
roller
bearings
which are
adjusted
for
pre
load
by
a
compressible spacer
installed between the
front and rear
bearing
inner
cone assemblies
Pinion
height
in relation to
the crownwheel
is
controlled
by
a
washer
loc ted between
the
rear
bearing
inner
cone and the
pinion
head
Axle shaft
bearings
are the
pre
lubricated ball
type
which
require
no lubrication in service and
are
retained to
the
shafts
by means
of collars
End float in
the
axle shaft
assembly
is
adjusted by
shims located at the brake
backing
plate
With the removal of the axle
shafts the differential
carrier
assembly
can be
detached
from the
axle without
removing
the
axle
casing
from the vehicle
It is
important
to note that
adjustment
figures
stamped
on the final drive
components
are in units of
0 01 mm
which
must be taken
into
consideration when
calculating
the various differential
and
pinion adjustments
TO REMOVE AND
INSTAL
2 IFFER
l I AL ARRIER ASSEMBLY
1
Raise the rear of the
vehicle and
support
on axle
stands
2
Loosen off and remove the rear wheels
and
brake
drums
3
Disconnect the hand brake cables and
hydraulic
brake
pipes
at the rear of the brake
backing
plates
Plug
the
pipes
to
prevent
the loss of fluid and
entry
of dirt
4 Remove the nuts
retaining
the
brake
backing plates
to the axle
casing tIuough
the holes
provided
in
the axle
shaft
flange
5
Withdraw
each
axle shaft
assembly
from the
axle
casing using
a slide hammer
and
adaptor
if
necessary
6
Take out the oil drain
plug
and drain the
differential oil
into
a suitable
container
7
Mark across the
flanges
of the
pinion
and
rear
universal
joint
take
out the four
securing
bolts and nuts to
release the
propeller
shaft
8 Remove the nuts
retaining
the differential
carrier
assembly
to the
axle
casing
and
withdraw the
assembly
Installation
is
a
reversal
of the removal
procedure
but
it
will be
necessary
to bleed
the
brake
hydraulic system
TO
DISMANTLE
NOTE
Before dismantling
the
assembly carry
out
the
following
check
The
information gained from
the
checks
will
prove helpful
when
assembling
the
unit
a
Check
the
tooth contact of
the
crown wheel and
pinion by
applying
a thin
coating
of
red
lead and
engine
oil
to both sides of
six
or
eight
of
the crown wheel
teeth
b Rotate the
pinion
both
ways placing
a bar
between
the
differential case and the carrier
to
apply
a load
to the
gear
teeth and so obtain a
good
marking
If the
pinion
height bearing pre
load and backlash
are correct the
area of contact should be
as shown
in
the teeth
marking
illustration
c The
margin
above
and
below the area of contact
94
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