MGB.
Issue
4.
5335
F3
0'
Z
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Description
Casing
assembly.
Dowelflocating
block
to
gearbox.
Stud—front
cover.
Stud
—rear
extension.
Plug—welch—casing.
Plug—drain.
Cover
assembly—front.
Seal—oil.
Joint
washerefront
cover
to
casing.
Washerispringgstubvfront
cover
to
casing.
Nut~stud.
Cover—gearbox
side.
Joint
washer—side
cover
to
casing.
Screw~gearbox
side
cover.
Washer—spring—screw.
WashervplainAscrew.
Washer—fibrevscrew.
ScrewAcountersunk—gearboxside
cover.
Washer
—'shakepro
of
~screw.
Extension-rear.
Plug—taper—rear
extension.
Button—thrust—speedom
eter.
Bearing
—rear
extension.
Seal—oil—rearextension.
Circlip—oil seal.
Joint washervextension
to
casing.
Screw—extension
to
casing.
Washer—spring—screw.
Nut—studgrear extension
to
casing.
Covereside—rear
extension.
Joint washer—side
cover
to
extension.
Screw—side
cover
to
extension.
Washer—spring—screw.
Breather assembly.
Shaft—first
motion.
Bearing.
Ringespring—bearing.
Shim
—first
motion
shaft—.002
in.
(.051
mm.).
Roller—needle—first
motion
shaft.
Watsher—locking~first
motion
shaft
nu
.
Nut—■rst
motion
shaft.
Housing—rear
bearing.
Peg:locating—rear
bearing
housing.
KEY TO THE
GEARBOX
COMPONENTS
Description
BearingArear—thirdmotion
shaft.
Distance
piece
assembly—speedometer
gear
to
rear
bearing.
Flange—thirdmotion
shaft.
Nutgthird motion
shaft ■ange.
Washerespring—nut.
Fork—reverse.
Screw—reverse
fork
locating.
Washer—shakeproof—screw.
Nut—screw—forklocating.
Fork—first and
secondspeed.
Screw~fork locating.
Washervshakeproof—screw.
Nut—screw—fork
locating.
Rodgfirst and
secondspeedfork.
Forkrthird
and
fourth speed.
Screw—forklocating.
Washer—shakeproof—screw.
Nut—screw
—fork locating.
Rod—third
and
fourth speed
fork.
Distance
piece—third and
fourth
speed
fork rod.
Rod
ereverse
fork.
Ball~fork locating.
Spring—locatingball.
Block—sliding
shaft locating.
Screw—locating
block
to
gearbox.
Washer—spring—screw.
Selector—firstand second
gear.
Screw~selector
locating.
Selector—third and
fourth
gear.
Screw—selectorlocating.
Selector—reverse
gear.
Screw—selectorlocating.
Pinion—speedometer.
Bush—speedometer
pinion.
Screwgspeedometer
pinion bush.
Washervlockescrew.
Sealgoil■speedometer
pinion.
Joint
washer—speedometer
pinion
bush.
Arm
assembly—interlocking.
Layshaf
t.
Gearunit~layshaft.
Washer—thrust—front—laygear.
Washer—thrUst—rear4.154
to
.156 in.
(3.912
to
3.962 mm.).
No.
87.
88.
89.
90.
91.
92.
93.
94.
95.
96.
97.
98.
99.
100.
101.
102.
103.
104.
105.
106.
107.
108.
109.
110.
111.
112.
113.
114.
115.
116.
1-17.
118.
119.
120.
121.
122.
123.
124.
125.
Description
Roller—needle
bearing—layshaf
t.
Tube—distance~laygear
bearing.
Ring—spring—layshaft.
Shaftvreverse.
Screw—reverse
shaft.
Washerwlocking
screw.
Gear
assemblyereverse.
Bush—reverse
gear.
Shaft—third motion.
Restrictor—oil.
Washer—thrust—rear—third
motion
shaft.
Washer—thrustAfront—JS65
to
.1575 in.
(3.962
to
3.9887
mm.).
Peg—thrustwasher.
Springgpeg.
First
speedwheel and
sy
nchronizer
assembly.
Ballgsynchronizer.
Springvsynchronizer
ball.
Baulk
ring—secondspeed
gear.
Gear—secondspeed.
Bush—secondspeedmainshaft
gear.
Ring—interlocking—secondand third
gear
bushes.
Gear-third
speed.
Bush—third
speed
gear.
Baulk
ring—third and fourth speed
gear.
Synchronizer—third and
fourth speed.
Spring—synchronizerball.
Ballgsynchronizer.
Coupling—slidingvthird and fourth
speed.
Distance
piece—third
motion
shaft.
Gear—speedometer.
Keywspeedometer
gear.
Shafteremote-control (rear
exten-
sion).
Lever—selectorgfront.
Screw—selector
lever—front.
Washer—shakeproof—screw.
Lever—selector—rear.
Screw—selectorlever—rear.
Washervspring—screw.
Key
—selectorlever.
No.
126.
127.
128.
129.
130.
131.
132.
133.
134.
135.
136.
137.
138.
139.
140.
141.
142.
143.
144.
145.
146.
147.
148.
149.
150.
151.
152.
153.
154.
155.
156.
157.
158.
159.
160.
161.
162.
163.
164.
165.
166.
167.
168.
169.
Description
Lever—clutchwithdrawaL
Bush
—withdrawa.llever.
Bolt—clutch
withdrawal
lever.
Washer—bolt.
Nut—stiff■bolt.
Cover—dust—clutch
withdrawal
lever.
Indicator—oil level—gearbox.
Tower—remote-control.
Dowel—remote-control
tower.
Lever—change
speed.
Knob—change
speed
lever.
Locknut—changespeedknob.
Pin—locating—change
speed
lever.
Washer—spring.
Spring—changespeedlever.
Cover—ballspring.
Circlip—ball spring
cover.
Plunger—reverseselector.
Spring—reverse
plunger.
Screw—reverseplunger spring.
Washer—spring—screw.
Pin—locating—reverseplunger.
Ball—reverseplunger.
Springereverseplunger detent.
Gasket~control
tower.
Screw—tower
to
extension.
Washer~spring«screw.
Plug—reverse
light switch hole.
Joint washer—plug.
Bush—change
speed
lever.
Bolt—gearbox
to
mounting
plate.
Bolt—gearbox
to
mounting plate.
Bolt—gearbox
to
mounting
plate.
Nut—bolt.
Washer—spring—bolt.
Grommet—gearlever.
Retainer—gear
lever
grommet.
Screw~retainer
to
cover.
Cover—gearboxremote-control.
Screw—cover
to
tunnel.
Washer—spring.
Box—speedometer
drive adaptor.
Reverselight switch (later
cars).
Washerfor switch (later cars).
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