MG MGB User Manual

Fl)
THE GEARBOX
(ALL
SYNCHROMESH)
15. Remove the first
and
second speed
synchronizer
assembly complete
with baulk
rings.
16.
Withdraw
the
speedometer
gear
and
remove
the
gear
driving key.
17. Remove the shaft
distance
piece.
18.
Press
the first
speed
gear, reverse gear,
and
the
bearing
complete with housing
from the
shaft (see
Fig. Fb.9).
19.
Press
the
bearing
from
its
housing (see
Fig. Fb.10).
Synchronizers
20. Remove
the baulk
rings.
21.
Wrap
a
cloth
loosely
around
the
assembly
to
retain
the
balls
and
springs and push the
synchronizer
hub
from
the
sliding
coupling.
Fig.
Fb.9
Third
motion shaft
A. Pressing
off
the
first
speedand
reversegears
and
bearing
B
Inspe
22.
with housing.
.
Refitting
gears
and bearing.
ction
If
the end-float
on
the
gears
when
checked
in
10
exceeds the figures
given, inspect
the
relevant
gear
and
thrust
washer
bearing
faces
for
wear.
Renew
worn
gears
and thrust washers
as
necessary.
23.
Examine
the
gears,
hubs,
and couplings for
wear
and
damaged
or
worn
parts;
replace
as necessary.
24.
Inspect the shaft
for
wear
and damage
to
splines
and
bearing surfaces.
25. Examine
the bearing for
wear
and damage.
26. Check
the
synchronizer
springs
against
the
dimension
and
pressure
given in
‘GENERAL
DATA’.
Reassembling
SYNCHRONIZERS
27.
Fit
tool
18G
1026
over
the
synchronizer
hub.
Fb.6
E...
28.
29.
30.
31.
32.
33.
Fig. Fb.10
Third
motion shaft
hearing
A. Removing
the
bearing from
its
housing.
B. Re■tting
the bearing.
Turn the
hub
until
one
of
the
spring
pockets
is in
line
with the hole
in
the
tool.
Fit the
spring
and
ball
into
the
pocket;
depress
the
ball
and
turn
the hub
so
that the
ball
is
retained by
the
tool.
Repeat
operations 28 and
29
for
the
remaining ball
and
springs.
Line
up
the
cut-outs
in
the
coupling
with those
in
the
hub
and
enter
the hub
into
the
coupling.
Press
the
hub from
the
tool
into
the
coupling
so
that
the
springs and balls
are
retained
by the
coupling
as
the
tool
is removed.
Fit the
baulk
rings
to
the
hub.
NOTE—The
baulk
rings
of
the
two
synchronizer
assemblies
are
not
interchangeable.
The
first
and
second
speed synchronizer
baulk
rings
are
identified
(see
Fig.
Fb.14)
by
a
drill
point
on
one
of the
baulk
ring
lugs
or
by
the fillets
at
the
base
of the
lugs.
A
>A
V
1H1HHIiHHIHEHl1HllHHIllllHlllllHllllllllllll!HillHHHIIIHUWIHIHHHHHHHWHI
Fig.
Fb.11
Dimensions
of tool for
re■tting
the third
motion shaft
A
=
19 in. (483
mm.)
B
=
3
in.
(76
mm.)
C
=
2.75 in.
(69
mm.)
MGB.
Issue
2.
22802

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English