1973 DATSUN B110 lock

CHASSIS

To

prevent
the
oil

pan
from

damaging
insert

a
wooden

block

between
the

pan
and

jack

9

Remove
two
nuts

@
used
to
attach
the

transmission

to

the

rear

engine

mounting
member

Place

a

jack
under

the

transmission
and

remove
two
bolts

@
used
to

fix
the

rear

engine
mounting
member
to

the

body

It

I
Rear

engine
mou

ting

installation

bolts

I
Rear

engine
mounting

bolts

I
2

Fig
TM
8
C

oss

Fberremoval

10

Raise
the

jack
supporting
the

engine
to
incline
the

engine
in
a
rearward

direction
A

sufficient

space
will
be

provided
for
transmission

removal

I
Remove

the

starting
motor
a
d
the

bolts

attaching

the
clutch

housing
to
the

engine

12

Lower
the

jack
under
tlie

and
withdraw
thS
transmission

iJ

DISASSEMBI
Y
trans
fljssion
gradu3Ily

1

j

I
When

disassembling
the
transmission

the

following

procedure

sh
ould
pe
adopted
Since
the

casings
are
made

of
aluminum

alloy
be

careful
not
to

damage
any
of
the

castings
C

t

l
t1
Drain

gear
o

frqrP
the
transmission

I

2
Rc

ove
the

dust

cover
release
the

withdrawal
lever

n
turn

sprin
and
remove
the

withdrawal
lever
and
release

bC
lring
from
the
clutch

housing

h

IF
i

Iii

h

l
11
I
W

ithdrawallever

I
Return

spring

1

31
Release

bearing

Fig
TM
9

Removing
release

bearing
and

withdrawal

lever

3

Remove
three
bolts

securing
the

front
cover
and

remove
the

front
cover

II
I
Front
coveT

L
I
Bolt

Fig
TM
10
Remd

ving

fron
cover

4
Remove

the

spced
omcter

pinion
assembly

1f

SPEEDOMETER

PINION

ASSEMB
Y

w

Fig
TM

11

Removing
speedometer

pinion

TM

4

j

TRANSMISSION

14
Install
each
fork
rod

together
with
the
check
ball

plug
check
ball
check
ball

spring
and
interlock

plu
er

by
the
use
of
a
fork
rod

guide
special
tool
ST236200
0

Note

a
Install
the
fori
rod

at
a

p
tion
where
tha

for

rod
check
ball

groove
coincides
with
the

ball

b
In
tha
standard

position
upper
surface
of
the

plug
is

flush
with

upper
surface
of
the

adapter

c
When

installing
the

plug
ba

sure
to

apply
thread

locking
agent

I
1

I
Ch
eck
ball

I
2

I
Special
toot

ST23620000

Fig
TM
42

InstaUing
check
ball

i

l

SET
SCREW

J
r
r

I

1st
2nd
SHIFT
ROD

PLUNGER

3rd
4th

SHIF1
RO
U

BALL
lt

SPRING

r

if

If

f

J

REVERSE

SHIFT
ROD

Fig
TM
43

Layout
of
check
ball
15
Drive

shift
fork

retaining
pin

Fig
TM
44

Driving
retaining
pin

16

Install
the
main

shaft

reverse

gear
thrust

washer

and

secure
them
with

a

snap
ring

Note
When

installing
the
thrust

washer

tha
web

portion
to
the

gear
sid8
be
sure

to
face

I

J
ll

it
ij

I

r

7

I
t
Lt

l

i

JI

h

l

p

II
Si

ap

dng

l

iVf

31
via

I
i

i
2
I

Reverse

gear
rll
f

F
O
1

Ii

ct
I

C

I
jf
1
Fig
TM
45
bista

ling
reveTS

gear
fJ
i

tJ
i

J

I

1
i
4

1
a

ot

j

l

i1i
o

f
tJ
r

w
i6

J
t
F
I

f
1

it
IV

I

17

1

t
1
the
reverse

@Isr
e
r

tilgether

wi1
tJthe
r

shift

k
Oc
shi
k
7i
fN

revers
lO

r
r
1

mg

1

1

f
i

J
4t
z
1

if
f

St
J
f

l

p

t

A
J

t
M
ff

J
1

A
Note

In
order
to
in

re
t

1h

f
t
li
u
r

is
O

cracked

apply
onl
fo
rk

r
id
ope
te

thet6t1ier

fori

J

t
i

fod
an
make

sU

r
e
that

th
gljllr
aoes
nOt
miiSli

J
o

I

t
J

t

if
z
TM
13

1

t

CHASSIS

Front

cover

Part
number
Thickness

mm

Un

Adjusting
shim

32208
18000

32208
18001

32208
18002
0
5
0
0197

0
2
0
0079

0
1
0
0039

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Symptom
and

possible
cause
Corrective
action

Difficult
to
intermesh

gears

Causes
for
difficult

gear
shifting
are
classified
to

troubles

concerning
the
control

system
and
transmission

When
the

gear
shift
lever

is

heavy
and
it
is

difficult
to
shift

gears
clutch

disengagement
may
also
be

unsmooth
First

make

sure
that
the
clutch

operates
correctly
and

inspect
the
transmission

Worn

gears
shaft
and
or

bearing
Replace

Insufficient

operating

strokfdue
to
wom
or
loose

sliding
part
Repair
or

replace

Defective

or
damaged
synchronizer
Replace

Gear

slips
out
of
mesh

In
the
most

cases
this
trouble
occurs
when
the

interlock

plunger
check
ball
and

or

spring
is
wuro
or

weakened
or

when
the
control

system
is
defective
In
this

case
the
trouble

cannot
be
corrected

by
replacing
gears
and
therefure

trouble

shooting
must
be
carried
out

carefully
It

should
also
be

noted
that

gear
slips
out
of
mesh
due

to
vibration

generated
by
weakened
front
and
rear

engine
mounts

Worn

interlock

plunger

1
Replace

Worn
check

ball
and
or
weakened

or
broken

spring
Replace

Worn
fork
rod
ball

groove
Replace

Worn
or

damaged
bearing
Replace

Worn
or

damaged
gear
Replace

Noise

When
noise

occurs
under

engine
idling
and

stops
while
the

clutch
is

disengaged
or
when
noise
occurs
while

shifting

gears
it

may
judged
that
the
noise
is

from
the
transmissiun

TM
22