ABS DATSUN B110 1973 Service Repair Manual

R

range
Reverse

In
R

range
the

front
clutch

and

low
and

reverse
brake

are

applied
The

power
flow
is

through
the

input
shaft

front

clutch

connecting
sheU
and
to

the

sun

gear
Clockwise
rotatiun
of
the

sun

gear
causes

counterclockwise

rotation

of
the
rear

planetary
gears

With
the

connecting
drum
held
sta

tionary
by
the
low

and
reverse
brake

the
rear

planetary

gears
rotate
the
rear

internal

gear
and

drive

flange
counter

clockwise
The
rear
drive

flange

splined
to
the

output
shaft
rotates

the

output
shaft
counterclockwise
at
a

reduced

speed
with
an
increase
in

torque
for
reverse

gear

J

When
the

manual
valve

V
is

posi

tioned

at
R

range
the
oil

having
the

line

pressure
7
is

directed
to
the
line

pressure
circuits

5
and
6
The

pressure
in

the
circuit

ID
actuates

the

low

and
reverse
brake
after

being

introduced
into

the
line

pressure
cir

cuit

I2

through
the
lst

2nd
shift

valve

ID
The

pressure
in

the

circuit

operates
the
release
side
ofband

servo

and
the
front
clutch
after

being
led

to

the
line

pressure
circuit

10

through

the
2nd

3rd
shift
valve

@
The

throttle

pressure
16
and
the

line

pressure
6
which

vary
with
the

degree
of
the

depression
of
accelerator

pedal
both
act
on

the

pressure
regula

tor
valve

CD
and

press
its
valve

CD

increasing
the
line

pressure
7
In
R

range
the

governor

pressure
is
absent

making
all
sllch
valves

inoperative
as

the
lst
2nd

shift

valve

@

2nd
3rd
shift
valve
and

pressure

modifier
valve

@
CHASSIS

R

C

Fig
AT
26
Power
transmission

during
R

range

lI

a

Go

I
w
L

AT085

Fig
AT

27

Operation
of
each
mechani6m

duirng
OR

range

Clutch
low
Band
servo
One

Parking

Ran
Gear

ratio
reverse

way

pawl

Front
Rear

brake
Operation
Release

clutch

Park
on
on

Reverse
2
182
on
on
on

Neutral

01
low
2
458
nn
on

Drive
D2
Second
458
nn
on

OJ

Top
1
000
on
on

2
Second
458
nn

t2
Second
458
on

tt
low
2
458
on
on

AT

16

Judgement
in

measurmg

line

pressure

I
Low

idling
line

pressures
in
the

ranges
D
2
loR

and
P

It
can

be
artributed
to
trouble
in

the

pressure
supply
system
or
too
low

output
of

power
caused

by

1
A

worn
oil

pump

2

An
oil

pressure
leakage
in
the
oil

pump
valve

body
or

case

3
A

sticking
regulator
valve

2
Low

idling
line

pressures
in

cer

tain

ranges
only

It

is
caused

pressumabIy
by
an
oil

leakage
in

the
devices
or
circuits
con

nected
to
the

relevant

ranges

1
When
there
is
an
oil

leakage
in

the

rear
clutch
and

governor
the
line

pressures
in
D

2
and
I
are

low

but
the

pressure
is

normal
in

R

2

When

an
oil

leakage
occurs
in

the

low

and
reverse
brake
circuit

the

line

pressures
in

R
and
p

are
low

but
the

pressure
is

normal
in
0

2

and
I

3

High
idling
line

pressures

It

is

presumed
to
be

caused

by
an

increased
vacuum
throttle

pressure

owing
to
a

leakage
in
the

vacuum
tube

or

diaphragm
or

by
an
increased
line

pressure
due
to
a

sticking
regulator
CHASSIS

valve

Vacuum

leakage
is

checked

by
di

reetly
measuring
the

negative

pressure

after

removing
the
vacuum

pipe

A

puncture
of
the

vacuum
dia

phragm
can
be

easily
ascertained

because
the

torque
converter

oil
is

absorbed
into
the

engine
and
the

exhaust

pipe
blows

up
the
white

smoke

4

Checking
items

when
the
line

pressure
is

increasing

In
trJs

checking
the
line

pressure

should
be
measured
with

vacuums
of

450
mmHg
and
0

mmHg
in
accordance

with
the
stall
test

procedure

test

procedure

1
If
the
line

pressures
do

not

increase

despite
the
vacuum
decrease

check
whether
the
vacuum
rod
is

incorporated

2
If

the
line

pressures
do
not
meet

the
standard
it
is
caused

mostly
by
a

sticking
pressure
regulating
valve

pres

sure

regulating
valve

plug
or

amptifier

TROUBLE
SHOOTING

CHART

Inspecting
items

1

Inspection
with

automatic

trans

mission
on

vehicle

J

AT
54
A
Oil

level

B

Range
selecr

linkage

C
Inhibitor
switch
and

wiring

D

Vacuum

diaphragm
and

piping

E

Downshift
solenoid
kick
down

switch
and

wiring

F

Engine
idling
rpm

G

Oil

pressure
throttle

H

Engine
stall

rpm

I
Rear
lubrication

J

Control
valve

manual

K

Governor
valve

L
Band

servo

M
Transmission
air
check

N
Oil

quantity

o

Ignition
switch
and
starter

motor

P

Engine
adjustment
and
brake
in

spection

2

Inspection
after

inspecting
auto

matic
transmission

on
vehicle

m

Rear
clutch

n
Front
clutch

q
Band

brake

r

Low
and
reverse
brake

s

Oil

pump

Leakage
of
oil

passage

u

One

way
clutch
of

torque
converter

v

One

way
clutch
of
transmission

w

Front
clutch
check
ball

x

Parking
linkage

y
Planetary
gear

CHASSIS

DESCRIPTION

The

front

suspension
is
of
a
strut

lype
The
shock

absurber

and

spindle
are
combined
to
a

single
unit
which

is

supported
by
the
coil

spring
at
the

upper
end
aod

by

the

transverse
link
at
the
lower
end

The

spindle
is
ins
tailed
on
the
bottom
of
the
strut

outer

casing
by
means
of

welding

A
ball

joint
is
attached
to
the

lower

part
of
the

spindle

The
ball

joint
and
the

transverse
link

lower
link
are

connected
and

they
are
fitted

to
the

suspension
member

through
a

rubber

bushing
The

shock
absorber
mechanism

is
built
in
the

strut
outer

casing
A

coil

spring
is

applied

between
the

upper
spring
seat
filled
to
the

upper
end

of

the

piston
rod
and

spring
seat
welded
to
the
outer

casing

These

components
assembled

to
a

single
unit
are
fitted
tu
the
chassis

frame
at
their

upper

part
through
the
thrust

bearing
Moreover
the

transverse
link

supports
the
overall

forward
and
backward
strut

movements

by
means
of
the

tension
rod

filled
to

the
chassis
frame

through
a

rubber

bushing
The

rubber

bushing
adopts
a

non
linear

shape

with
which
the
forward
and

rearward

rigidities
are

changed
The

torsion
bar

type
stabilizer

adopted
in
this

suspension
system
is
used
so
that
the

strut
maintains

connection

between
both
side
struts

Thus
this

suspension
mechanism
absorbs

shocks

toward
all

directions
into
the

chassis

effectively
and

efficiently
the
tension
rod
absorbs

forward
and
backward

shocks
the
strut

absorbs
vertical

shock
and
the

transverse
link

absorbs
shock

applied
toward

sideway

t

J

f

II

L

II

I

7

f

1

I

Fig
F
1
2
Cross
sectional
view

of
front
axle

Drum

type
brake

FA
2

fl

i
i

I

1

I

I
i

2

4

L

thi7

lrr

I

1

1

Piston
rod

2
Gland

packing

3
Piston
rod

guide

4

Cylinder
CHASSIS

ESSION

5
Rebound
stopper

6
Piston

7
Bottom
valve

Fig
FA
29
Cross
sectional
view

of
strut
assembly

and
shock
absorber

operation
Disassembly

Disassemble
and
reassemble
the
strut
assembly
in
a

clean

place
so
that
the
inner

components
are

protected

from
dirt
and
other

foreign
matters

Jack

up
the
vehicle
remove
the
wheel
and
remove

the
stabilizer
bar
and
tension
rod

from
the
transverse
link

Loosen
the
knuckle
arm

fIxing
bolts
and

separate
the

strut

assembly
from
the

ball
joint
Loosen
the
self

locking

nuts
on
the

upper
portion
of
the
strut
and
remove
the

strut

assembly
See
the
Removal
of
Front
Axle
and

Suspension
Assembly
above
for
details

Fig
FA
JO

Removitlg
ktluckle
arm

fixitlg
bolt

FA
12

CHASSIS

Fig
FA
35

Removing
O

ring

8

Separate
the

piston
rod

and

cyiinder

assembly

upward
from
the

strut
tube

slowly
and

carefully

M

Fig
FA
36

Removing
piston
rod
and

cylinder
assembly

Note
Do
not

remove
the

piston
rod
and

guide
from
the

cylinder
They
are

precisely
assembled
and
thus

should
be
handled
as
an

assembly

9
Drain

damping
oil

from
the

cylinder
and
strut
outer

casing
into
a

clean
container

Note
This

procedure
should
be

strictly
observed
because

shock

absorber

perlormance
is

directly
affected

by

the

amount
of

damping
oil
When

refilling
measure

amount
of

damping
oil

correctly

FA

14
Inspection

Be

sure
to

replace
the

gland
packing
O

ring
and

damping
oil

with
new

ones
whenever
the
strut

assetnb1y
is

disassembled

2

Wash
all
disassembled

parts
except
for
nonmetal

parts
with

gasoline
or

thinner
and

remove
dirt
and

other

foreign
matters
with

compressed
air

3

Clean
the
nonmetal

parts
with

compressed
air

Strut

outer

casing

Replace
if

deformed

cracked
or

damaged

Spindle

Check
the

spindle
especially
carefully
for

hair
crack
on

the

base
and

damaged
threaded

portion
Replace
the

strut

assembly
if

faulty
condition
exists

Strut

mounting
insulator

Replace
if
rubber

and
metal

joint
is
melted

or
cracked

Replace
the

rubber

parts
if

they
are
deteriorated

Front

spring

Replace
if

weakened
or

cracked

Specifications
for

spring

Free

length
338
t
10
mm

13
3

t
0
394
in

203
t
5
mm

7

99
t
0
1969
in

200

kg
441Ib
Installed

height
load

Strut

mounting

bearing

Replace
if
unusual
sound

occurs

during
rotation
or

slackness
toward

the
axis
direction
is
excessive

When

installing
the

strut

mounting
bearing
be
sure
to

fill
it

with
mul1i

purpose
grease
MIL
G
2108
or

10924

FRONT
AXLE

FRONT
SUSPENSION

I

f

f

ij

Reassembly
Fig
FA
37

Greasing
strut

mounting
bearing

Be

careful
not
to

drop
or
scratch

part
since
all

parts
are

precision
finished
When

reassembling
thoroughly
clean

all

component
parts
and
make

sure
that
dirt
and

other

foreign
matters
are

completely
removed

During
reassem

bly
do
not

use
cloth

or
gloves

I

Secure
the
strut
attachment

of
strut
Quter

casing
in
a

vise
Strut

attachment

special
tool
ST35650000

2
Insert

the

piston
rod
and

cylinder
assembly
into

the

strut

outer

casing

3

Fill
the

strut
outer

casing
with
correct
amount

of
oil

1

Fig
FA
38

Pouring
shock
absorber
oil

Note
a

Correctly
measure
amount
of

shock
absorber
oil

to
be

poured
because

the
amount

of
oil

directly

affects

damping

power

280
cc
17
1

cu
in
for
AMPCO

ATSUGI
make

265
cc
16
2
cu
in
for
TOKICO
make

b
Use
Nissan

genuine
oil
for
the
shock
absorber

oil

Nisseki
Shock
Absorber
Oil
A
2
for

Atsugi
make

Tokico

light
Oil
No
1
D
S
for

Tokico
make

FA

15
4
Install
a
rubber

O

ring
on

top
of
the

piston
rod

guide

and
install
the

gland

packing
by
the
use
of
a

gland
packing

guide
special
tool
ST35550000

Apply
multi

purpose
grease
MILG
2108
or

10924

lightly
to

the

lip
portion
indicated

by
asterisk
0

in

Figure
F
A40

ST35550000

1

Fig
FA
39

Installing
gland
packing

a
1
c

I

Fig
FA
40
Cross
sectional
view

of
gland
packing

5

Tighten
the

gland
packing
to
8
0

to
11
0

kg
m
57
8

to

79
5
ft
1b

by
the
use
of

a
gland

packing
wrench

special
tool

ST35500000

ST35500000

Fig
FA
41

Tighrening
gland
packing

CHASSIS

Note
a
Before

tightening
the

gland
packing

pull
the

piston
rod

approximately
90
mm
3
543
in

upward
This
will

provide
the
shock
absorber

system
with
the
best
condition
for

bleeding

b
Gland

packing
tightening

torque
is
rated

at
8
0

to
11
0

kg
m
57
8
to
79
5
ft

Ib
However
arm

length
of
this
tool
is
extended

by
100
mm
3
94

in

as
shown
in
the

following
figure
Thus
when

actually
tightening
the

gland
packing
measure

effective

length
L
of
a

torque
wrench
to
be

used
and
set

up
torque
wrench
value
based
on

the

following
formula

C
10
x
l

I

kg
m

C
70
x
l

I
ft

lbJ

100
l
3
94

where
C
Value
read
on

the
torque
wrench

kg
m

ft
lbIJ

Effective

length
of

torque
wrench

mm
in
l

TOROUE

WRENCH

GLAND

PACKING
WRENCH
I

C

4

F

r
I

L
I

100
mm
3
94
in

6

Conduct
air

bleeding
on
the

shock
absorber

system

1
Stand
the
strut

assembly
vertically
with
the

spindle

side
down
and

pull
the

piston
rod
within
its
stroke
Turn

over
the
strut

assembly
with
the

spindle
side

up
and

depress
the

piston
rod
in

the
full

stroke

2

Repeat
the
above
described

operations
several
times

3
Make
sure
that
there
is
no

feeling
variation
on

pressure
while

depressing
or

pulling
the

piston
rod
Thus

air

bleeding
completes

J

FA
16
Fig
FA
42

ConductingaiT
bleeding
on
the
shock

absorber

system

7

Secure
the

strut
attachment
of

strut

assembly
in
a

vise
Strut
attachment

special
tool

Sn5650000

8
In
order

to
ease

operation
raise
the

piston
rod
to
the

up
most
and

secure
it
in
that

position
by
inserting
bound

bum

per

t

D

I
T

I

c
I
Piston
rod

2
Bound

bumper

3

Strut
outer
case

Fig
FA
43

Raising
piston
rod

9
Place
the

front

spring
on
the
lower

spring
seat

compress
the

spring
with
a

coil

spring
compressor
special

tool
Sn5650000
install
the
dust
cover

upper
spring

seat

oil
seal
strut

mounting
bearing
and
strut

mounting

insulator
in
that
order

Vehicle
pulls
to

right
or
left

When

driving
with

hands
off
the

steering

wheel

over
a

flat
road
the
vehicle

gently

swerves
to

right
or

left

Note
A
defective
rear

suspension

may

also
be
the
cause
of
this
trouble

and
therefore

see
also
the

chapter

dealing
with
the
rear

suspension

Instability
of
vehicle

Stiff

steering
wheel

checking
up
procedure

Jack

up
front
wheels

detach
the

steering

gear
and

operate
the

steering
wheel
and

If
it
is

light
check

steering
linkage
and

suspension
groups

If
it
is

heavy
check

steering
gear
and

steering
colunm

groups
CHASSIS

Malfunction
of
shock
absorber
inside
the

strut
or
loose
installation
bolts

Unbalance
of
vehicle

level

Improper
air

pressure
of
tire
or

insuf

ficient

tightening
of

wheel
nuts

Difference
in

height
of

right
and
left
tire

treads

Incorrect

adjustment
or

abrasion
of
front

wheel

bearing

Collapsed
or
twisted
front

spring

Incorrect
wheel

alignment

Incorrect
brake

adjustment
binding

Worn

rubber

bushings
for
transverse
link

and
tension
rod

Deformed

steering
linkage
and

suspension

link

Unbalanced
vehicle

level

Improper
air

pressure
of
tire

Worn

rubber

bushings
for

transverse
link

and
tension

rod

Incorrect
wheel

alignment

Worn
or
deformed

steering
linkage
and

suspension
link

Incorrect

adjustment
of

steering
gear

Deformed
unbalanced
wheel

Improper
air

pressure
of
tire

Insufficient
lubricants
or

mixing
im

purities
in

steering
linkage
or

excessively

worn

steering
linkage

Stiff
or

damaged
suspension
ball

joint
or

lack
of

grease

Worn
or

incorrectly
adjusted
wheel

bearing

Worn

damaged

steering
gear
and

bearing

FA

26
Replace
or

retighten

Correct
the
unbalance

Adjust
or

tighten

Replace
tires

Adjust
or

replace

Replace

Adjust

Adjust

Replace

Replace

Correct
the

unbalance

Adjust

Adjust

Adjust

Replace

Adjust

Correct
or

replace

Adjust

Repl
nish

grease
or

re

place
the

part

Replace

Replace
or

adjust

Replace

FRONT
AXLE
FRONT

SUSPENSION

Incorrectly
adjusted

steering
gear

Deformed

steering
linkage

Incorrect
wheel

alignment

Damaged
strut

upper
end

bearing

Damaged
or
stiff

piston
or

shock
absorber

rod

in
the
strut

Interference
of

steering
column
with
turn

signal
switch

Excessive

steering
wheel

play

Noises

Grating
tire
noise
Incorrectly
adjusted

steering
gear
housing

Worn

steering
linkage

Improperly
fitted

gear
box

Incorrectly
adjusted
wheel

bearing

Worn

transverse
link
and
tension

rod

fitting
bushings

Improper
air

pressure
of
tire

Insufficient

lubricating
oil
and

grease
for

suspension
ball

joint
and

steering
linkage

or
their

breakage

Loose

steering
gear
bolts

linkage
and

suspension

groups

Defective

shock
absorber

inside
the

strut

Defective
wheel

bearing

Worn

steering

linkage

Worn

transverse
link

and
tension
rod

fitting
bushings

Broken

collapsed
coil

spring

Loose
strut

mounting
insulator

tightening

nuts

Improper
air

pressure
of
tire

Incorrect
wheel

alignment

Deformed
knuckle

spindle
and

suspension

linkage

FA
27
Adjust

Replace

Adjust

Replace

Replace

Adjust

Adjust

Replace

Retighlen

Adjust

Replace

Adjust

Replenish
lubrication

oil
and

grease
or

re

place

Retighten

Replace

Replace

Replace

Replace

Replace

Retighten

Adjust

Adjust

Replace

CHASSIS

Jumping
of
disc
wheel

Improper
air

pressure
of
tire

Adjust

Unbalanced
wheels

Adjust

Defective
shock
absorber

Replace

Defective
tire

Replace

Deformed
wheel
rim

Replace

Excessively
or

partially
worn
tire

Improper
air

pressure
of
tire

Adjust

Incorrect

wheel

alignment
Adjust

Defective
wheel

bearing
Replace

Incorrect

brake

adjustment
Adjust

Improper
tire

shifting
rotation

Adjust

Rough
and

improper
driving
manner
Drive

more

gently

SERVICE
JOURNAL
OR
BULLETIN
REFERENCE

DATE
JOURNAL
or

BULLETIN
No
PAGE
No

SUBJECT

FA
28