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-----TI'IE
REAR
AXLE
H
Section
U.5
IMPORTANT POINTS CONCERNING
AXLE A
TIENTION
Attention
requiring
the
dismantling
of
the
axle
and
the
replacement
of
parts
is
not
advised
unless
this
is
absolutely
necessary
and
unless
you
are
equipped
with
the
necessary
checking
gauges
and
a full
range
of
distance-pieces
and
spacers
from
which
to
select
the
required
new
sizes.
The
fitting
of a
replacement
axle,
when
possible,
is
advised.
Dismantling
for
examination
and
cleaning
is
permissible
provided
care
is
taken
to
refit
the
<Jistance-pieces
and
spacers
in
exactly
the
same
'ocations.
No
adjustment
is provided in
the
accepted sense.
The
crown
wheel
and pinion
are
set
in
their
correct
relation
to
each
other
by means of distance-pieces
and
spacers selected to provide
the
correct
location
Fig. H.7.
When
uncoupling
the
f1elllble hose
the
union nut
.. A "
must
first be unscrewed and
then
the
attachment
nut"
B."
On no account
must
the
hexagon on
the
flaxlble pipe be
turned
in an
attempt
to
disengage
the
flexible coupling.
of
the
components
on initial assembly. Should
the
components
be dismantled,
their
relative positions
should
carefully be
observed
and each
part
marked
suitably so
that
it can be reassembled
correctly
in its
original position.
Various
components
can be replaced by
correctly
combining
the
markings on
the
original
components
against
those
on
the
new
parts
in
the
manner
detailed
in
subsequent
sections.
It is
important
that
the
repairer
be
quite
clear
on
this
point
before
he
undertakes
the
dismantling
of
the
axle.
Spacers
between
the
outer
races of
the
differential
bearings and faces of
the
recesses machined in
the
axle casing and
cover
control
the
posltlon of
the
crown
wheel
in
relation
to
the
centre
line
of
the
pinion.
Adjustment
of
the
pinion position is made by vary-
ing
the
thickness
of
the
pinion washer. and
that
of
the
crown
wheel
by
the
varyi ng thickness of
the
differ-
ential bearings spacers.
Fig. H.B,
The axle. complete with springs, disconnected from
the
car and ready for removal.
The
following
operations
are
possible
without
the
use of special
tools
:-
(0) To replace a
crown
wheel
and pinion With a pair
carrying
markings which
are
identical to
the
originals.
(b) To replace a
crown
wheel
bearing alone, since
these
are
of
the
controlled
width
type,
provided
genuine
M.G.
replacements
are
used.
(c) To replace an axle
cover
which carries markings
identical
to
the
original.
The
following
replacements
are
possible
by
calculations
alone
:-
(d) To replace
the
differential cage by
one
carrying
a different marking
to
the
original.
(e) To re place an axle cove r carrying differe nt
markings
to
the
original.
The
following
replacements
can
be
carried
out
by
calculation
and
the
use of special
tools
:-
(f)
To replace an axle case carryi ng different
markings
to
the
ortginal.
(g) To replace a
crown
wheel
and pinion carrying
different markings
to
the
originals.
(h) To replace bearings to
the
pinion shaft.
H.7
Wishvilles Classic
Automobile Library
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