Datsun 1600 - GEARBOX PROCEDURES; THREE SPEED GEARBOX PROCEDURES

Manual Transmission 4
SPRING
J
Gearbox
WIth
Laygear
and Cross Shafts
Removed
to Show ShIft Fork
Arrangement
2 Invert
the
assembly
and
remove
the
cover
plate
screws and cover
plate
3
Remove
the
retaining
screw and
lockplate
and
Withdraw the
speedometer pinIOn
assembly
from the
extensIOn
housmg
4
Take out the
extensIOn
hOUSing retammg
screws
and Withdraw the
hOUSing
from the
gear
case and mam
shaft
5 Remove the
cuchps
from
the
gear
sluft cross
shafts
6 Remove the
nuts and knock out
the cotter
pms
retamlng
the shift
levers to the cross shafts
7
Pull the cross
shafts out of the
gear
case
and
remove the thrust washers and
s1uft levers wluch will
now
be
released
8 Take out the bolts
retammg
the
mamshaft front
beanng
cover and Withdraw
the
cover
and oil seal
9
Tap
out
the
layshaft
and ltft the
laygear
and thrust
washers out of the
gear
case
10
Remove
the
reverse Idler shaft
retalnmg
screw
tap
out the shaft and remove
the Idler
gear
II
Unscrew the
plug
from
the mterlock hole
and
remove the
spring
and detent
ball If fitted remove the
reverse
lamp
sWitch
12
Knock out the
spnng
pinS retaining
the shift forks
to
the sluft
rods
13
Tap
the sluft rods one
at a time from the
gear
case and
remove the s1uft forks
NOTE
Recover the
Interlock
plunger
fitted
In the case
between the
shift
rods and
the
detent
ball and
spnng
from
the
blanked hole above
first
reverse
shift
rod
t
14
Pull
out
the
mam shaft
assembly
from the
rear of
the
gear
case
15 Remove
the
Input
shaft and
beanng
assembly
from
the
front of the
gear
case
16
Remove the
cuchp
at the front
of
the mamshaft
and detach
top
gear
bauIk
nng
and
synchroIDser
assembly
followed
by
a
second baulk
nng
and
mtermedlate
gear
17 Remove the
cuchp
at the
rear
of
the mamshaft
and detach
the
speedometer
dnve
gear
and ball
beanng
and
spacer
18
Fmrily support
the
rear malnshaft
beanng
and
retainer
assembly
and
press
out
the
malnshaft
19
Detach
the
first reverse
synchromser
assembly
together
With
first
gear
baulk
nng
and first
gear
I
20 If
necessary
dismantle each of
the two
synchromser
assembhes
NOTE On
the
1st reverse
assembly
the
shift
plates
are
tensioned
by
Call
spnngs
fitted
Into
the
hub
directly
below
the
plates
On the 2nd
top
assembly
a
spnng
ring
located
at
each end
of
the hub
serves
to tensIOn
the
shift
plates
Components
are not
Interchangeable
between the
v
assemblies
21
If
necessary remove the
Clfchp
and washer and
press
the
beanng
from
the
Input
shaft
83
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