Datsun 1000 Workshop Manual page 98

IDENTIFICATION
LETTER AND
Differential Case Variation from Standard
Figures
Units of
0 01
mml
NOTE
During
the
tightening procedure lightly
tap
each
bolt head
to
assist
seating of
the
crownwheel
on
the
case
7 Provided the
original
differential
case
and carrier
bearing
assemblies
are
to be
used
mount
the differential
case
assembly
with the
original
pre load shims
between
the
carrier
bearing
inner
cones
and
case
into the carrier
8 Instal the carrier
bearing
caps and
bolts according
to
the
mating
marks
on
the cap and
housing Tighten
the
retaining bolts to
the specified
torque
NOTE Operations
7 and
8
are
only practical when
the
dismantling
check
on
tooth
contact pattern
backlash and
pre load
proved satisfactory
However
if
the
differential
case or
carrier
bearings
have been replaced
or
the
differential
checks
proved
unsatisfactory
it will be necessary to
adjust
the
differential
as
follows
9
Using
a
surface plate
and
dial indicator
measure
the
variation
from standard
width
standard
width 17 5
mm
0
689
in of each carrier bearing
when
subject to
a
2 5
kg
5 5Ib load Variation should
be
in units
of
0 01
mm
10 Calculate
the thickness of shims
required
for each
carrier
bearing by
the
following equations
Left side Tl A
C D E
x
0 01
0
2
Rear
4de
15
Right
side T2 B D
F
x
0 01
0 2
Definition
location
of letters
and variation
from
standard
figures
in units of 0 01
mm
A
left side
carrier
bearing housing
B
right
side carrier
bearing housing
C D di f f e r e nt i ll
case
E F
bearing
width variation
from standard for each
carrier
bearing
in units of 0 01
mm
Thickness of
shims
required for
each carrier
bearing
calcolated
by
the
equation
will be in hundredths of
a
millimetre 0 01
mm
NOTE If the old carrier bearings
are
to
be taken back into
sel1Jice the pre
load
required
will be
slightly
less than that
for
new
bearing To
compensate
for
the old
bearings
reduce
the overall shim thickness
alreadv
calculated
by
0
03
0 07
mm
0 001 0 003 in
II
Instal the selected shims
on
their
respective
ends
of the differential
case
and fit the carrier
bearing
inner
cone
assemblies
12
With the carrier bearing outer
cones
mated with
the correct inner
cone
assembly instal the differential in
the carrier
using
a
soft faced hammer
to
tap
the assembly
in to he
bearing seats
13 Instal
the carrier
bearing
caps and
bolts
according
to
the
mating
marks
on
the cap and
housing Tighten
the
retaining bolts
to
the specified
torque
14
Check the crownwheel backlash
as
previously
described in
TO DISMANTLE If
necessary
adjust
the
backlash
by transferring
the
appropriate
thickness of carrier
bearing
shims from
one
side to the other
according to
the
requirement
15
Check
the crownwheel
run
out
if
the
run out
exceeds
specifications
remove
the differential
assembly
detach the crownwheel
from the
case
and check
the
contact
faces of the
case
and crownwheel for dirt
or
burrs
During
assembly
ensure
that the crownwheel is
pulled
down
squarely to
the
case
If the
run out
still
exceeds
specifications
a new
crownwheel and
pinion
set will have
to
be
installed
16 Carry out
the tooth
contact
pattern check
as
described
previously
in TO DISMANTLE
Provided pinion
height
backlash and
pre
loads
are
correct
the desired tooth
patterns will be obtained
17 Instal the assembly
in the
vehicle
in
the
reverse
order of removal fill
with
correct quantity
and
grade of
oil
PINION
on SEt I
3 Mark
the relative position of the pinion llange and
propeller
shaft flange if
not
previously
marked and
remove
the retaining
bolts
support
the
propeller
shaft
to
the
underbody
clear of the pinion flange
I DRIVE
TO RENEW OIL SEAL AND OR PINION FLANGE
I
Raise the
rear
of the vehicle and support
on
stands
under the axle housing
or
raise the
complete
vehicle
on a
hoist
2
Remove
both axle shaft and bearing assemblies
from the
axle
housing
as
described under
AXLE SHAFT
AND
BEARING TO REMOVE
NOTE As the tension
of
the
lip of
a new
pinion oil seal
on
the seal surface of the pinion flange
will
be
greater
than
that of
the
original
component
particuiarly
if
a new
flange
99