Differential Installation; Differential Carrier Removal And Dismantling (Estate Car And Van); Differential Inspection - Datsun 510 series Workshop Manual

The standard width of the side
bearings
is 20 0mm
0 7874
this width
must
be measured before
attempting to
calculate the thickness of the
adjusting
shims Use
a
dial
gauge
and surface
plate to
ohtain the
measurement
Place
a
weight of
approximately
2 5
kg 5 5 lb
on
the bearing
to obtain
steady
readings
Install
the
differential
cage assembly
in the carrier Fit the
sckcted shims and O
rings
into both differential
side
bearing
covers
and install the
covers
in the carrier
using the special tool
ST 33720000
Fig
G 16 l Make
sure
that the side
bearing
outer
races are
not
damaged by the roller Measure the backlash
between the teeth of the
crown
wheel and drive pinion with
a
dial
gauge
as
shown
in
Fig G I
Sct
the
dial gauge
to
0 10
f
O
mm 0 004
0 008
in I
If
the
backlash
is
less than the
specifIed
value
move
he left side adjusting shim
to
the right side and vice
versa
if the backlash exceeds the specified figure
Check that the
run out
at
the
rear
of the crownwheel does
not excecd O OSmm 0 002 in for the 1800ce model
or
O 08mm
0
003
in
for the 1400 Check
the
drive pinion
turning torque Thc
turning torque should be higher by
I 3
kg
em compared with the
turning
torque obtained before
fitting
the differential
cage
in the carrier The
higher
value
can
be
provided
if necessary
by dmnging the
jde
cover
shims
Note
howcver that
any
decrease
or
increase in the thickncss of shims
wjJl
alter tht budlush between the teeth of the crownwhee1
and pinion
Check the tooth
contact
pat
tern
of the
crown
wheel and
pinion
as described under the appropriate heading
DIFFERENTIAL
Installation
Secure the differential carrier
on
the
rear suspension
mem
ber
using
the four bolts and washers Fit the differential
mounting
member
to
thc mounting holes
by pushing
it forwards
with
a
suitable lever Fig
G 18
Tighten
the nuts to
a torque
reading of
8 5
kgm
61 5 Ib ft
Tighten
the bolts
attaching
the
gear
carrier
to
the
suspension
member
to
a torque reading
of
6 7
kg
36 5Ilb ft
t
The rcmainder of the installation
operations
are a
reversal
of
thc removal
procedure
Fill the differential with the
correct
quantity
of recommended oil
DIFFERENTIAL CARRIER
Removal and
Dismantling
Estate
car
alld Vanl
To
remove
the differential carrier disconnect and
remove
rhe propeller shaft
as
previously
described and
remove
the
two
rear
axle shafts
as
described in the section REAR AXLL With
draw the
nuts
securing the differential and
remove the carrier
from the
rear
axle
Mount the unit
on
the
special
attachment
as
shown in
Fig
G 19 and
carry out
a
preliminary
check before dismantling
Oleck the tooth
contact
of the crownwheel and
pinion by
applying lead oxide
to
three
or
four teeth of
the crownwheel
Turn the
crown
wheel several times
to
obtain
an
impression
of
the tooth
contact pattern Check the backlash between the
teeth
of the crownwheel and
pinion
with
a dial gauge Hold the drive
pinion with
one hand and move the
crown
wheel backwards and
forwards
to
check that the backlash
is
Io
ithin
thL
speL ified
limits
Shims and adjusting washers
must bL
altered if the tooth
con
tact
pattern and backlash is
incorre
L
the
neL
cssary details for
these
operations
can
be found towards
the
end of this section
under the
appropriate
he Jdjn s
Fil1JJly
mark the
bearing
caps
with
a
hammer and
punch
to
ensure
correct
t1ignment
on re
assembly
Remove
the
bearing
caps nd withdraw the differ ntial
cage
make
a
note
of the left and
right hand
positions so
h J t
the bearing
caps
and
outer
race can
be
re
assembled in their
original positions
Withdraw the side
beJrings with the
s
cjal
puller as
shown
in Fig G 20 taking
care
not to catch the
edge
of the
bearing
inner
races
Place
the assembly in
a
vice and detach the crownwheel
by slackening the retaining
bolts in
a
diagonal patter Fig
G lf
Drive
out
th pinion shaft lock
pin
from left
to right using
a
suitable
punch or special
tool ST 23520000
Fig
C 22
With
draw the
pinion
shaft and take
out
the pinions side
gears
and
thrust washers Store the
gears
and thrust washers
so
that
they
can
be assembled in their original positions
Check the initial
turning
torque of
the drive
pinion
with
the
preload
gauge
ST 3190000 and
measure the height
of
the
drive
pinion with the special gauge ST 31941000 Compare the
figures
obtained with those
givcn
in Technical
Data at the end
of this section
Hold the drive
pinion with
the speciaJ wrench ST 3 J 530000
as
shown
in
Fig
C 23 and
unscrew
the
drivc pinion
nut
then
pull
out
the
drive
pjnion flange
Tap
the drive pinion assembly
to
the
rear
with
a
plastic
mallet and withdraw it
together
with the
rear
bearing
inner
race
bearing
spacer
and
adjusting
washer
Remove and discard the oil seal
and
withdraw thc front
bearing inner
race
Drive
out
the
outer
races
of the front and
rear
bearings with
a
suitable drift
Fig
G 25
The drive
pinion
rear
bearing inncr
race can
be removed
with the special tool ST 300310000
as
shown
in
Fig G 24
DI F FE lENTlAL
Inspection
Clean all components thoroughly
and examine for
signs
of
wear or damage
Check the teeth of the crownwhcel and
pinion
for
scoring
and hipping Ii
should
be
noted that the crownwhecl and
pinion
are
supplied
as a
matched
set
and if either part is
damaged
the
complete set must
be
replaced
Examine the inner faces of the side
gears
and
seats
on
the
differential
case
Inspect
the bearing
races
and rollers and
replace
them if necessary
Small defects
on
the faces of the thrust washers
can
be
corrected
using
emery
cloth however if the clearance between
side
gear
and thrust washer exceeds 0 1
O 2mm 0 0039
0 0079 in it
ill be necessary
to
replace the washer Various
sizes of washers
are
available and the thicknesses
arc
detailed
under the
heading
DIFFERENTIA L GEAR CAGE
Assembling
69