Datsun 1000 - 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
differenti 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
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