Datsun 1968-1973 510 Owners Workshop Manual page 112

Chapter
6
Gearbox
and automatic translIBSlIOn
111
pa
to
st
on reassembly
The upper
leg of each shIft fork
should be marked
19 Recover the mterlock plungers whIch are located 10
the
maIO
casing between the shIft rod holes
20 Undo and
remove
the four bolts and
spring
washen that
secure
the malnshaft
rear
bearing
retamer to
the
maIn
caSIng
21 The mamshaft assembly
may now
be
withdrawn from the
rear
of the
main
casIng
22 USIng
a
soft
faced
hammer
tap
out the
mput
shaft assembly
23 The
gearbox maIO casmg IS now
stripped out
Thoroughly
flush out the mterlor of the caSIng with
paraffIn
and WIpe
clean
wIth
a non
fluffy
rag
15 Input
shaft
dlSl118ntlong 4 1 1
1 The shaft and
bearing
are
located
10
the front of the
maIO
casmg
by
a
large flanged sleeve pressed
onto
the
bearmg
outer
track
2
To
renew
the
bearing
fIrst
remove
the
selectIve
fIt
clrcllp
and
washer from the front
end
of the
bearing
3 Place the outer track of the
race on
the top of
a
firm bench
vIce
and drive the
mput shaft through the bearmg
Note whIch
way round the
bearmg IS
fItted LIft away the bearmg
4
Usmg a
suitable d ameter drift
remove
the bearmg from the
flanged sleeve
5
Recover the
spIgot
bearing
from the
maIO
shaft end of the
mput
shaft
16
Malnshaft
dlSl11anthng 4 1 1
1
Usmg
a
pair of
clrchp pllen remove
the
clrchp
from the front
of the mamshaft
2 Shde off the
3rd top
gear
synchronlser
and 3rd gear
complete
WIth needle
roller bearings
3 Note that
a
baulk
ring IS
located
on
both ends of the
synchronlser
4 Undo and
remove
the nut and lockplate from the
rear
of the
mamshaft
ThIS has
already
been slackened
off
5 W thdraw the
speedometer
drive gear and
ball bearing
6 The
reverse gear
and sphned hub may
now
be
WIthdrawn
from the mamshaft
7
Place the malnshaft 10
a vIce
and WIth
a
soft metal hammer
drive the mamshaft
through
the
maIO
bearing
and
retainer
assembly
8 Slide off the thrult washen and lit gear
together
WIth the
needle roller bearing and sleeve Take
care to
remove
the
thrust
washer
ball bearing
located
10
the mamshaft
9 Remove the
1st 2nd
gear
synchronoser
a
mbly and 2nd
gear
complete
with
needle
roller
bearing
10
Agam
note that
a
baulk ring
IS
located
on
eIther end of the
synchronoser
11 Remove the
orcllp
from
the
mamshaft and WIth
a
soft faced
hammer drIVe out the
rear
mamshaft bearing
from the retaIner
17
Synchro
hubs
dosmanthng
and
InspectIOn
4 1 1
For full InformatIon
see SectIon 6
18 Synchro
hub
reassembly
4
speedl
For full Informat
on see
SectIon 7
19 Gearbox
components InspectIon
4 1 1
For full InformatIon
see
SectIon 8
F g 6 46 Removal of
maIn
shaft
blllrlng retainer
securing
belli
See
141
F g 6
47
WithdrawIng
mall1Jhaft assembly
from
main
CBSing
See 14
F g
6
4S
Explocled View
of malnshaft
nbly
See 161
FIG
6 49
REVERSE IDLER GEAR ASSEMBLY SEe 211
1 Reverse
haft
2
Snap
nng
3 Idler drIVIng
gear
4 Thrust washer
5
Thrust her
6 Idler gear