------~
----THE
GEARBOX F
Section
F.7
SPEEDOMETER
DRIVE
MODIFICATION
242-48
Spring for Sliding Hub 6
1279
Ball
for SHdlng Hub 6
24151 Gearbox Mainshaft I
and replaced by
;-
SA.2435/2 Sliding
Hub
(Top and
lrd),
with Sliding Cones
Comprising
:-
24%6 Sliding Hub I
24247 Cone for Sliding
Hub
2
242-48
Spring for Sliding Hub 6
1279 Ballfor Sliding Hub 7
14-467
Gearbox Mainshaft 1
Starting at Gearbox No. TW396
the
speedometer
gear is keyed to
the
gearbox mainshaft
to
provide a
more
pos.itive
drive.
Care
must therefore be taken when dismantling
not to lose the
k.ey
and
to
make
sure
that it is in
position on reassembly.
New Part Nos. have been allocated
to
the
modified
parts as follows
:-
Mainshaft (Part No. 168209).
Speedometer gear
(Part
No. 168210).
Speedo mete r gear key
(Part
No. X20139).
Part No.
168209
can be used
to
service
the
earlier
mainshafts
to
Part No. X24467. and
the
speedometer
gear (Part No.
16821
0) can be used
to
service gears
to Part No. MG900/23
J by omitting
the
key.
I
2
I
2
No. Off
I
2-4246
24247
and replaced by
:-
SA.2-i02/3 Shifter
~haft
Assembly (Top and 3rd)
Compri~ing
:-
2
..
57 Shafi
204377
Clrclip
3&48
Pin for Shaft
36-49
Rivet for Shaft
Commencing at
Engine No.
31104
and Gearbox No. TF.513 for
Series
"TD"
Midget. The existing
arrangement
of synchro
baJls
were
peened
into
the
Iynchro
hub to prevent ejection.
The following
pans
are
deleted
:-
No. Off
SA10S
Sliding Hub (Top and
lrd),
with Sliding Cones
Comprising
:-
24246 Sliding Hub
24247 Cone for Sliding Hub
and replaced by
:-
SA.2435/1 Sliding Hub (Top and 3rd), with Sliding Cones
Comprising
;-
24246 Sliding Hub I
24247 Cone for Sliding Hub 2
142048
Spring for Sliding
Hub
6
1279 Ballfor Sliding Hub
6
Commencjn& Gearbox
No. TJ.800 and Engine No. XPAG(TD{
653l for Series
..
TD
It
Midget and
Gearbox
No. SH.335, Engine
No.
XPAG/SCjl60431 for Series
"'r'
.. Ii Litre.
To
positively maintain
the
top
and
third
synchro hub in
the
COrrect position one of
the
spring holes has been bored right
through
and an additional ball added. This ball locates in an
Indent In
the
gearbox
malnshaft.
The following parts are deleted
:-
No.
Off
SA.24l5fl Sliding Hub (Top and
lrd),
with Sliding Cones
Comprising
:-
Sliding Hub
Cone
for Sliding Hub
B M.G. Midget
(Series"
TD
"),
lssue 2 (E)
79345-1/53
F.7
Wishvilles Classic
Automobile Library
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