tires DATSUN 210 1979 Service Manual

Page 319 of 548


Propeller
Shaft
Differential
Carrier

DIFFERENTIAL
CARRIER

When

a
differential
carrier
is

sus

pected
of

being
noisy
it
is
advisable

to
make

a
thorough
test
to
determine

whether
the
noise

originates
in

the
tires

road
surface
exhaust
universal

joint
propeller
shaft
wheel

bearings

engine
transmission
or
differential

carrier
Noise

which

originates
in

Condition

Noise
on
drive
coast

and
float

Noise

on
turn

Knocking
sound

during
starting
or

gear

shifting

Seizure
or

breakage
Probable
cause

Shortage
of
oil

Incorrect
tooth
contact
between

ring

gear

and
drive

pinion

Incorrect

ring
gear
to
drive

pinion
backlash

Seized
or

damaged
ring
gear
and

drive

pinion

Seized
damaged
or
broken
drive

pinion

bearing

Seized

damaged
or
broken
side

bearing

Loose

clamp
bolts

or
nuts

holding
ring
gear

side
retainers

bearing
cap
etc

Seized

damaged
or
broken
side
and

pinion

gear

Seized

damaged
or
broken
side

gear
and

pinion
thrust
washer

Pinion

gears
too

tight
on
their
shaft

Excessive
backlash

Incorrect
backlash

ring
gear
to
drive

pin

ion

or
side
ta

pinion
gear

Worn

gears
or
case

Worn
side

flange
or
rear
axle
shaft
and

side

gear
spline

Pinion

bearing
under

preload

Loose
drive

pinion
nut

Loose

clamp
bolts
or
nuts

holding
ring
gear

side
retainers

bearing
cap
etc

Shortage
of
oil
or
use
of
unsuitable
oil

Excessively
small
backlash

Incorrect

adjustment
of

bearings
or

gears

Severe
service

due
to
an
excessive

loading

improper
use
of
clutch

Loose
bolts
and
nuts
such
as

ring
gear
clamp

bolts

PD

13
other

places
cannot
be
corrected

by

adjustment
or

replacement
of

parts

in
the
rear
axle

assembly

orrective
action

Supply

gear
oil
Rebuild
differential
carrier

if

necessary

Adjust
tooth
contact
or

replace

hypoid
gear

set

Adjust
backlash
or

replace
hypoid
gear
set
if

necessary

Replace
hypoid
gear
set

Replace
pinion
bearing
and

damaged
parts

Replace
side

bearing
and

damaged

parts

Clamp
to

specified
torque
and

replace

damaged
parts

Replace
damaged

parts

Replace
damaged

parts

Replace
damaged
parts

Adjust
backlash

Replace
worn

parts

Replace
worn

parts

Adjust
preload

Repair
or

replace

Clamp
or

replace
if

necessary

Refill
or
use
correct
oil

Adjust
backlash
and

replace
as

required

Replace
worn
or

damaged

parts

Replace
damaged

parts

Tighten

Page 324 of 548


Front
Axle

Front

Suspension

INSPECTION
AND
ADJUSTIVIENT

INSPECTION

Inspect
in
accordance
with

periodic

maintenance
schedule

Block
rear
wheels
with
chocks

2

Jack

up
the
front

of

car
and

support
it
with

safety
stands

Refer
to

Section
GI
for

lifting

points
and

towing

3

Shaking
each
fiont
wheel

by

grasping
the

upper
and

lower
surfaces

of
the
tires
check

suspension
parts
for

looseness
wear
or

damage
Tighten
aU

loose
bolts
and

nuts
to
the

specified

torque
Replace
all
worn

parts
as

described
under
Front

Suspension

4

Check
wheel

bearings
If

there
is

any
axial
end

play
adjust

bearings
to

specifications

Replace
worn
or

damaged
bearings

as
described
under
Front

Axle

S
Check

strut
for
oil

leakage
or

damage

ADJUSTMENT

WHEEL

BEARING

Block

rear
wheels
with
chocks

2

Jack

up
the
front
of
car
and

support
it

with

safety
stands

3

Remove
brake

pads
Refer
to

Section
BR
for

pad
replacement

4

Remove
hub

cap
cotter

pin
ad

justing

cap
and
wheel

bearing
nut

S

Sparingly
apply
recommended

multi

purpose

grease
to
threaded

por

tion

of

spindle
and

contact
surface

between
wheel

bearing
washer
and

outer
wheel

bearing

6

Tighten
wheel

bearing
nut

using

a
suitable

torque
wrench

P
Tightening

torque

Wheel

bearing
nut

3
0
to
3
5

kll
m

22

to
25
ft

Ibl
Fig
FA

Tighlening
Wheel

Bearing

Nul

7
Turn

wheel
hub
several
times
in

both
directions
to

seat
wheel

bearing

correctly

again
tighten
wheel

bearing

nut
to
the
above

torque

8
Turn
back
wheel

bearing
nut
A

degrees

Return

engle
AU

900

Install

adjusting
cap
and

align
any

of
its
slots
with
hole
in

spindle
If
the

above

procedure
fails
to

align
hole
and

slot

together
then

tighten
lock

nut
as

much
as
I

S

degrees
until
hole
in

spindle
is

aligned
with

eny
slot

CAUTION

00
not

overtighten
wheel

bearing
nuts

as
this

can
cause
wheel

bearing
seizure

9
Turn

hub
in
both

directions
two

or
three
times

measuring
its

turning

torque
and

axial

play
to

ee
if

they
are

within
the

specified
range
If

they
are

not

adjust

Axial

play

Omm

Din

Wheel

bealing
starting
torque

With

new

gleaS8
l8al

A

measured
et

wheel

bearing

nut

less
than
7

kg
cm

G
1
in
Ibl

FA
2
AJ
measuled
et
wheel
hub

bolt

Less
then
1
2

kg
12
G
Ibl

With
u
ed

gr
seal

AJ
measured

at
wheel

bealing

nut

1
0
to
4
5

kg
cm

0
9
to
3
9
in
b

AJ
measuled
at

wheel
hub

bolt

0

17
to
0
79

kg

0
37
to
1
741bl

FA413

Fig
FA
2
Metr

uring
Bearing
Starting

Torq
ue

Repeat
above

procedures
until
cor

rect

starting
torque
is

obtained

Note

a

Correctly
meas
e
rotation

slar
ting

force

toward

tangential
direction

against
hub
bolt

b

Above

figures
do
not

include

dragging
resistance
with

pads
re

moved
on
disc
brake
models

c

Any

slightest
wheel

bearing
axial

play
cannot
be
tolerated

10
Insert
new
cotter

pin
with
the

legs
through
hese
two

parts
spread

legs
away
from
each
other

against
sides

of
wheel

bearing
nut

Page 325 of 548


Fig
FA
3

Installing
Coller
Pin

II
Install
hub

cap
with
new
Q

ring

and
wheel

WHEEL
ALIGNMENT

Correct
front
wheel

alignment
as

sures

proper
car

handling
characteris

tics

and
minimum

steering
effort
with

the
least

amount
of
tire

wear
Before

adjusting
front
wheel

alignment
be

sure
to
make

preliminary
inspection
of

front
end

parts

Tire

pressure
and
balance

Wheel

bearings
and
wheel

bearing

nuts

Steering
gear

play

Steering
gear
housing
loose
at
frame

Steering
linkage
and
connections

Shock
absorber

operation

If

wrong
repair
or

replace
the

damaged
portion
or

parts

When

using
equipment
for
front

wheel

alignment
inspection
follow
the

instructions
furnished
with

equipment

Note

Inspection
should
be

made
with

the
car
set
Ievel
and
at
curb

weight

Cember
end
caster

Camber
and
caster
are

preset
at

factory
and

cannot
be

adjusted

The

car

requires
only
toe
in

and
car

posture
adjustment

Note
If
camber

or
caster

alignment
is

not
within

specifications
check
as

sociated

parts
Repair
or

replace
as

necessary
Front
Axle
Front

Suspension

Toe
In

Measure
toe
in
and

adjust
as
neces

sary
For

adjustment
carry
out
the

following
procedure

1

With

steering
wheel
at

its

straight

ahead

position
check
front
wheels
to

see
if

they
are
set
in

straight
ahead

positions

2
Toe
in

can
be

adjusted
by

varying

length
of

steering
side
rods

Note

a
Loosen

lock
nuts
and

turn
left
and

right
side

rods

equally

b

Turning
side
rods
in
forward
direc

tion
of

car
inaeases
toe
in

c
If
side
rods
have
been

disassembled

set
at

specified
distance
A

be

forehand
when

reassembling

d
Be
sure
to
s
w
side
rods
into
ball

joint
sockets

more
than
20
mm

0
79
in

A
315
mm
12
40
in

EfJK

Toe
in
Unladen

1
to
3
mm

0

04
to
0
12
in

Unladen
means

the

following

conditions

Tankful
of
fuel
radiator
filled
and

engine
oil
full

Spare
tire

jack
hand
tools
mats
in

design
position

All

tires
inflated
to

specified

pres

sure

All
excessive
mud
dirt
and
road

deposit
accumulations

away
from

chassis
and

underbody

3
After
correct
toe
in
is

obtained

tighten
side
rod

adjusting
nuts

FA
J
Toe
in

A
B

Toe
in

28
Lines

parallel
to

center
line
of

body

8

F

A696

FA724

Fig
FA
4

Adj
ting
Toe
in

r

II
Li
1
t

Fig
FA

5
Side
Rod
T

Side
lod

edjusting
nl

8

to
10
0

kg

58
to
72
ft

1
Drive

caf
r

whet
ls
ride

01
properly

2

Gauge
sh

steenng
whe

tion

3
Rota

right
an

on
lOner

Tu

corre

i
I

rf

c

Ji
1

A

JI
U

2

7181

JOck

CL

C

Page 333 of 548


FA731

Fig
FA
35

Removing
Wwer
Arm

8

Remove

suspension
ball

joint

from
lower
arm

9
Place

knuckle
arm
in

a
vise
Re

move

suspension
ball

joint
from

knuckle
arm

using
a

press

@

I

r
662

Fig
FA

36

Remouing
Suspension
Ball

Joint

10
Withdraw
lower
arm

bushing

from
transverse
link

using
Front

Lower
Arm

Bushing
Replacer
Set

ST36720000
and
a

press

Mrl
o

o

o

0

F

A669

Fig
FA
37

Removing
Wwer

Am

BuNUng

INSPECTION

Lower
arm

I

Repair
or

replace
lower
arm
if

deformed

cracked
or

damaged
Front
Axle
Front

Suspension

2

Replace
bushing
if

excessively

worn

or
cracked

3

Make
sure

mating
surface
of
bush

ing
is

clean
and
free
from
oil
or

grease

apply

soapy
water
to

bushing
to
facili

tate

installation

Lower
bell

Joint

I
Ball

joint
is
assembled

at

factory

and

cannot
be
disassembled
Check

ball
stud

turning

torque
with
nut
in

place
on
ball

stud

If
it

is
far
from

specifications

replace

liJ
Turning
torque

New

parts

40
to
100

kg
cm

35
to
87
in

Ibl

Used

parts

More
than
20

kg
cm
117
in

Ibl

lUJ

F

A333

Fig
FA
38
Lower
Ball
Joint

2
Check

condition
of
dust
cover
If

it
is

cracked

excessively
replace
ball

joint

3
Lubricate

ball

joint
with
recorn

mended

multi

purpose
grease

To

lubricate

remove

plug
and
in

stall

grease
nipple

Pump
grease
slowly
until
old

grease

is

completely
forced

out
After

greasing
reinstall

plug

Note

When
a

high
pressure
grease
gun

used

operate
it

carefully
so
that

grease
is

injected
slowly
and
new

grease
does
not

DOme
out
from

clamp
portion

INSTALLATION

Install
lower
arm
and

suspension

ball

joint
in
reverse
order
of

removal

FA
l
Lower

erm
buahln

I
Before

installing

bushing
rub
off

rust
or

paint
drops
from
insi

e
collar

on
lower
arm

with

emery

paper

2

Using
Replacer
Set
ST36720000

insert

bushing
with

a

press
until
end

face
of

bushing
is

aligned
with
collar

on
lower
arm

ST36720000

I
I
HA734

Fig
FA
39

Installiff
l
Wwer
Ami

Bu
hi1f
I

Lower
erm
end
atebIllzer
ber

To

install
lower

arm
and
stabilizer

bar

temporarily
tighten

securing
bolts

Then

tighten
bolts
to

specifications
at

curb

weight
with
tires

on

ground

liJ

Tightening
torque

Bell

joint
socket

to

lower
arm

5
1
to
6
1

kg
m

37
to
44
ft
Ibl

Bell

joint
socket
to
lowel

arm
with
tension
rod

5
1
to
6
1

kg
m

37
to
44
ft
Ibl

Bell

joint
to
knuck
le

arm

5
5

to
10
0

kg
m

140
to
72
ft
Ibl

Lower
IIrm
bolt
nut

3
9
to
5
0

kg
m

28

to
36
ft
Ibl

Side

lod
ball

joint
to

knuckle
arm

3
0

to
7
0

kg
m

122
to
51
ft

lbl

Steering
knuckle

erm
to

stlut

7
3
to

9
9

kg
m

53
to
72
ft
Ibl

Page 338 of 548


Front
Axle
Front

Suspension

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Condition

Vibration
shock

and
shimmy
of

steering

wheel

Vibration
Loose
connection
of
the

serration

parts
and
wear
of
each

part
of

linkage
cause

vibration
of
front
wheels

and

steering
wheel

vibration
This
is

very
noticeable
when
trav

elling
on

rough
road

Shock
When
the
front
wheels
are

travelling

on
bumpy
roads
the

play
of
the

steering

linkage
is
transmitted
to
the

steering
wheel

This
is

especially
noticeable
when

travelling

on

rough
road

Shimmy
Abnormal
vibration
of
the
front

suspension
system
nd
the
whole

steering

linkage
which

occu
at

specific
speeds

Car

pulls
to

right
or
left

When

driving
with
hands
off
the

steering

wheel

on
a

flat
road
the

car

gently
swerves

to

right
or
left

Note

A
faulty
rear

suspension
may
also
be

the
cause
of
this

problem
and
therefore

see
ebo
Section
RA
Proba
b
Ie

ca
use

Improper
tire

pressure

Imbalance
and

deformation
of
road

wheel

Unevenly
worn
tire

or
insufficient

tight

ening
of
wheel
nuts

Improperly
adjusted
or
worn
front

wheel

bearing

Faulty
wheel

alignment

Worn

transverse
link

bushings

Insufficiently

tightened
steering
gear
hous

ing

Wear
of

steering
linkage

Worn

suspension
ball

joint

Excessive
backlash
due
to

improper
adjust

ment
of
the

steering
gear
box

Damaged
idler
arm

Worn

column

bearing
weakened
column

bearing
spring
or
loose

drmp

Malfucntion
of
shock
absorber
inside
the

strut
or

loose
install3t
on

b9
t5

Imbalance
of

car
l
e

Improper
tire

pressure
or

insufficient

tight

ening
of

wheel
nuts

Difference
in

wear
and

tear
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
transverse

link
and
tension

rod

Imbalance
of
car
level

FA
16
Corrective
action

Adjust

Correct
the
imbal

ap
9f
r

B4I
e

Replace
or

tighten

Adjust
or

tighten

Adjust

Replace

Retighten

Replace
faulty

parts

Replace

Adjust
correctly

Replace

Replace
or

retighten

Replace
or

retighten

Correct
the

imbal

ance

Adjust
or
tighten

Replace
tires

Adjust
or

replace

Replace

Adjust

Adjust

Replace

Replace

Correct
the

imbal

ance

Page 340 of 548


Front
Axle
Front

Suspension

Condition
Probable

cause

Loose
stabilizer
bar

installation
bolts
and

nuts

Loose
strut
to

hoodledge
installation
nuts

Grating
tire

noise

Improper
tire

pressure

Incorrect
wheel

alignment

Deformed
knuckle

spindle
and

suspension

linkage

Jumping
of
disc
wheel

Improper
tire

pressure

Imbalanced
wheels

Faulty
shock
absorber

Faulty
tire

Deformed
wheel
rim

Ex
t

J1
or

partially
worn
tire

Improper
tire

pressure

Incorrect
wheel

alignment

Faulty
wheel

bearing

Incorrect
brake

adjustment

Tires
not

rotated

Rough
and

improper
driving
manner

FA

18
Corrective
action

Retighten

Retighten

Adjust

Adjust

Replace

Adjust

Adjust

Replace

Replace

Replace

Adjust

Adjust

Replace

Adjust

Rotate
tires

commended

vaIs

Drive
more

gently
at
re

inter

Page 375 of 548


Condition

Brakes

drag

Brake
chatters

Brake

squeals

Pedal

pulsates

Rear

lock

under

light
brake

pedal
force

Rear

lock

under

heavy
brake

pedal
force
Brake

System

Probable
cause

Clogged
brake
lines

Incorrect

adjustment
of
wheel

bearings

Improper
shoe
to
drum
clearance

Weak
shoe
return

springs

No

free
travel
in

brake
shoe
return

Groove

or
out
of
round
brake
drum

or
rotor

Loose

or
bent

support
plate

Distorted

brake

shoes
or

pads

Grease
or

brake
fluid
on

linings

Dirty
or
scored

brake
drums

Distorted
brake
shoes

or
bent

support
plate

Weak
or
broken
brake
shoe

retaining
spring

or
return

spring

Glazed
or

contaminated
brake

lining

Out
of
round
or
off
center
drum

On

disc
brakes
lateral
runout
of
brake

rotor

is

excessive

Excessive
variation
in

thickness
of
brake

rotor
surfaces

Improper
tire

pressures

Excessive

wear
of

tires

Faulty
NP
valve

Improper
tire

pressures

Excessive
wear
of
tires

Poor

front

braking
effect

Grease
oil
mud

or
water
on

linings

or

pads

Excessive
wear

of

linings
or

pads

Local
fit
of

linings
or

pads

Master

cylinder
or

wheel

cylinder
in

poor

condition

BR
2t
Corrective
action

Check
and
clean

Adjust
or
repair

Adjust

Replace

Adjust

pedal
height

Grind
or
replace
as

required

Tighten
support
plate
bolts
to

specified

torque
or

replace

plate

Replace
as

necessary

Replace
linings

Blowout

assembly
with

compressed
air

or

refinish
drum

Replace
faulty
unit

Replace
if

faulty

Cam

ground
lining
to
elilninate

glaze
If
it

doesn
t

replace
linings

Turn
drum
or

replace
as

necessary

Check
with
dial
indicator

turning
disc

by

hand
If
runout
exceeds

specifications
re

place
disc

Measure
around
disc
face
with
micrometer

Replace
disc
as

required

Check
and

adjust

Check
and

replace

Replace

Check
and

adjust

Check
and

replace

Clean
or

replace

Replace

Shave
or

replace

Repair
or

replace

Page 378 of 548


t

MAINTEN
NCE

TIRE
INFLATION

Correct
tire

pressure
is

very
impor

tant
for

steering
ease
and

riding
com

fort
Correct

pressure
also
makes
for

a

quieter
ride

and
extends
tire
life

If

all
tires

are

inspected
frequently

and
maintained

at
correct

pressure

any

sharp
objects
in
tread
can
be

quickiy
detected
nd
abnormal

wear

which
invites
serious

problems
can
be

avoided

After

inflating
tires
valves

should

be
checked
for

leakage
Without

valve

caps
leakage
will
occur

due
to
dirt
and

water

resulting
in

underinflation
Ac

cordingly
whenever
tire

pressure
is

checked
be
sure
to

tighten
vaive

caps

firmly
by
hand

JW

Sri

in

1
II

I

i

I
1
I
1

1
I

I

I
II

I
I
I

i

M
I

l
1

14
nl

01
I

II

Toe

in
or

toe
out
wear

I
J

I

I
p

rt
i

Ilnl
lll

11111
IllIlI

Shoulder
wear

Toe
in
or
toe
out

wear

When
the
front

wheels
are
aligned

in

an
excessive

toe
in
or

toe
out
condi

tion

the
tires

will
tend
to

scrape
the

tread
rubber
off
and
the
tread
will

de

elop
a

feathered

edge

Center
wear

Center
wear
is
caused

by
overinfla

tion
of
the
tire
Wheel
and

Tire

WHEEL
AND

TIRE

TIRE
WEAR

Tread
ar
Indicator

Tires
are

provided
with

tr
lad
wear

indicator
at

six

places
around
tire

circumference

indicating
1
6

mm

J

in
tread

depth
When
tires
wear
and

then

marks

appear
replace
them

wtth

new
ones

Tread
wear
indicator

Tire
tread

L
1
c

WH024

Fig
WT
l
Tread
WearJndicator

n

1

ii

J
J

f
J

I

h
I

me

1111

Center
wear

j

I

1II
mnr

I

j
n

Ii

Ii

i

I
Jil

111

lie

Uneven
wear
WT004

Fig
WT

2
A
bnormal
Tire
Wtor

Shoulder
wear

This
wear

may
be
caused

by
under

inflation
incorrect
wheel
camber
or

continued
excessive

speed
around

curves
In

general
the
first
two
causes

are
the

most
common
Underinflation

causes
wear
on
both
sides
of
treads

while

camber
causes
wear
on

only
one

side
of
tread

WT
2
Uneven
wear

Uneven
wear
is

caused

by
incorrect

camber
or
caster

malfunctioning
sus

pension
unbalanced
wheel
out
of

round
brake
drum
or
other
mechani

cal
conditions
To

stop
this
abnormal

wear
correct
the
above

faulty
parts

TIRE
REPLACEMENT

CAUTION

Different

types
of
tires
sucb
as
bias

bias
belted
and
radial

tireS
must

not

be
mixed

except
in
an

emergancy

Mixed

use
of
different

types
of
tires

can

adversely
affect
car

ilndlilig
and

may
cause
driver
to
lose
control

Note

a
Be

sure
to
check
the
wheel

nut

torque
after
the
wheel
has
been

run
for

the
rust
I
000
km
600

miles
also
in

cases
of

repairing
fiat

tires
tire
rotation
etc

and
every

10
000
km

6
000
miles
thereafter

Retighten
if

necessary

b
It
is

recommended
that
new
tires
be

installed
in

pairs
on
the
same
axle

When

replacing
only
one
tire
it

should
be

paired
with
the
most

tread
to

equalize
braking
tl1lction

c

When

replacing
original
tires
with

those
tires
of
an

optional
recom

mended
site
and
of

diff
rent
diam

eter
the

speedometer
must
be
reo

calibrated

I

To

replace
a
tire

with
a

jack
in
a

safe
manner
refer
to

Lifting
Points

and

Towing
Section
GI
for

jacking

up

WARNING

Never

get
under

car
whila

it
is

supported

only
by
jack

Always
use

Il
fety
stands
to

suppon

side
member
of

body
construction

when

you
must

get
berreatb
car

Page 379 of 548


2
To
install
wheel

tighten
wheel

nuts
in
criss
cross
fashion

As

for
aluminum
wheels

proceed
as

follows

I

Snugly
tighten
four
nuts
after

wheel
is

positioned
See

Fig
WT
3

Iil
Tightening
torque

Wheel
nut

Steel
and
aluminum
wheels

8
0
to
10
0

kg
m

58

to
72
ft
Ibl

CAUTION

Two

types
of
wheel
nuts
Bre
used

one

is

designed
for
use
with
steel
wheel

Bnd

the
other
for

use
with
aluminum

wheel
Do
not

mix
different

types
of

wheel
nuts

p

WT020

For
aluminum

wheels

only
c

WH246

For
teel

wheels
only

Fig
WT
4
Wheel
Nut
Wheel
and
Tire

2

Slightly
pull
wheel
back
to

prop

erly
align
nuts
with

bolt
holes
in

wheel
and

tighten
nuts

as
much

as

possible
with

your
fingers

3

Tighten
four
nuts

evenly
with

a

wheel
wrench

in
criss

cross
fashion

f

WT016
Align
nuti
with

bolt
holes
in

wheel
and

evenly
tighten
nuts

each
one
a

little
at
a

time

Fig
WT
3

Installing
Aluminum
Wheel

Note
Be
careful
not
to
smear
thread

ed

portion
of
bolt
and
nut
and
seat

of
nut
with
oil
or

grease

TIRE

ROTATION

Tires
tend

to
wear

unevenly
and

become
unbalanced
after
a
certain

running
distance
Uneven

tire
wear

often
results
in
tire
noise
which
is

attributed
to

rear
axle

gears
bearing

etc

Front
tires
also

tend
to
wear

unevenly
because
of

improperly
align

ed
front

wheels

Accordingly
to

equalize
tire
wear

it
is

necessary
to
rotate
tires

periodi

cally
as
recommended
in
the
Periodic

Maintenance

WT
3
Bias

and
Bias
Belted
Tires

Right
front

Right
rear

c
J
c
l

X@

c
l
c
J

Left

front
Left

rear

4
WH
EELS

Right
front

Right
rear

c
J
c
l

@

9
c
J

Left
front

Left

rear

5

WHEELS

Radial
Tires

Right
front

Right
rear

c
J

c
l

@

c
l

c
J

Left
front
Left
rear

4

WHEELS

Right
front

Right
rear

c
J

c
J

c
l

Left
front

Left
rear

5
WHEELS

WT021

Fig
WT
5
Tire
Rotation

INSPECTION

WHEEL
BALANCE

The
wheel
and
tire

assembly
should

be

kept
balanced

statically
and

dy

namically

Proper
tire
balance
is

necessary

when

driving
the
car
at

high

speeds

Consequently
the

wheel
and
tire

as

sembly
should
be

properly
rebalanced

whenever

puncture
is

repaired

The
wheel
and
tire

assembly
be

comes
out

of
balance
according
to

uneven
tire

wear
Severe
acceleration

and

braking
or
fast

cornering
is

the

cause
of
wear
on
tire

resulting
in

unbalance
of
tire
and
wheel

assembly

Page 380 of 548


The

symptom
of
unbalance

appears

as

tramps
car

shake
and

steering
mal

function

To
correct
unbalance
use

proper

wheel
balancer

Maximum

allowable

unbalance

at
rim

flange

10

gr
10
35
ozl

Balance

weight

10
to
60

gr
10
35
to
2

12
ozl

at
10

gr
10
35

ozl
interval

Note

a
Be

sure
to

place
correct
balance

weights
on
inner

edge
of
rim

See

Fig
wr
6

b

Do
not

put
mOle
than
two

weights

on
each
side

c
Two

types
of
balance

weights
are

used
one
is

designed
for
use
with

steel
wheel

and
the
other
for

use

with
aluminum
wheel

Do
not
mix

different

types
of
balance

weights

WHEEL

In
order

to
ensure

satisfactory

steering
condition
as
well

as
maximum

tire

life

proceed
follows

Check
wheel
rim

especially
rim

flange
and
bead
seat
for
rust
distor

tion

cracks
or
other
faults
which

might
cause
air

leaks
Function
of

tubeless
tire

depends
on
a

good
seal

between
tire

bead
and

wheel
rim

Thoroughly
remove
rust
dust
oxi

dized
rubber
or

sa
nd
from
wheel
rim

Note
Rim
bead
seats
should
be
clean

ed
with
the

following

Steel
wheel

Wile
brush
coone
steel
wool

etc

Aluminum
wheel

Neutral

detergent
cloth
etc

Use
dial

gauge
to
examine
wheel

rim
for
lateral
and
radial
runout
Wheel
and
Tire

Lateral
and

radial
runout

Steel
wheel

less
than
1
2
mm
0
047
in

Aluminumwlte
1

lass
than
0
5
mm

10
020
in

Difference

right
and
left

lateral
runout

Steel
wheel

leu
than
0
5
mm

10
020
in

Aluminum
wheel

less
than
0
2
mm
0

008
in

C
JeCk
points

l

Fig
WT

6
WT005

Whee
Rim
RUllout
Check

Points

Wheel
must
be

replaced
when

any

of
the

following
problems
occurs

I

Bent
dented
or

heavily
rusted

2

Elongated
bolt
holes

3

Excessive
lateral
or
radial
runout

4
Air

leaks

through
wel
s

5
Wheel
nuts

won
t

stay
tight

TIRE

To

check
for
leaks

apply

soapy

solution
or

submerge
tire
and
wheel
or

tub
in
water
after

inflating
it
to

speCified
pressure
Special
inspection

for
leaks
should
be

carried
out
around

valve

or
wheel
rim
and

along
tread

Note
bead

and
rim

where

leakage

0

11rs

Wipe
water

away
from

any

area
which
leaks
air

bubbles
and
then

mark

place
with
chalk

After

removing

object
which
caused

puncture
seal
the

pain
Wilen
repair

ing
a

puncture
use
a
tire

repair
kit

furnished

by
any
tire
dealer

following

WT
4
inslrt1ctiol
iplovided
with

tit
If

a

puncture
is
too

large
or

there
is

some

damage
to
tire

fabric

repair
should
be

carried
out

by
authorized
tire

dealer

Discard
when

any
of
the

following

problems
occurs

I

Broken
or

damaged
bead
wire

2

Ply
or
tread

separation

3
Worn
fabric

damage
on

tubeless

tire

4

Cracked
or

damaged
side
wall

5

Tires
with
tread
wear
indicator

showing
etc

Note

a
When

discarding
tire
take
extra

care
not
to

damage
tire
bead
rim

flange
and
bead
seat

Do
ot

use
tire
irons
to
foree
beads

away
from
wbeel
rim

flange
that
is

always
use
tire

replacement
device

whenever
tire
is
removed

b
Install
wive
core
and
inflate
to

proper
pressure
Check
the

locating

rings
of
the
tire
to
be
sure

they

show
around
the
rim

flanges
on

both
sides

WARNING

When
while
tire
is

being
inflated

bead

snaps
over

safety
hump
it

might
break
Thus
to
avoid
satious

personal
injury
never
stand
over

tire
when

inflating
it
Never
inflate

to
a

pressure
greater
then
2
8

kg
em
40

psQ
If

beads
fail
to

seat
It
that

pressure
deflate
the

tire
lubricate
it

again
and
then

reinflate
it
If
the
tire
is
ov

inflated
the
bead

might
break

pos

sibly
resulting
in

serious
persona

injury

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