1973 DATSUN B110 wheel alignment

pointer
used
at
the
rearward
lut
atiol1

With
the

proper

scttings
the

tram
bar
will
be
on
a

piane
parallel
to
that
of

the

body
The

exception
to
this
would
be
wht
n
one
of
the

reterence
locations

is
induded

in
the

misaligned
area
then

the

parallel
plane
between
the

body
and

the
tram
bar

may

not

prevail
After

completiun
of
the

repairs
the

tram

gauge
should
be
set
at
the

specitled
dimension

to
check

the

accuracy
of
the

repair
operation

CAR

PREPARATION

Preparing
the
car
for
the

underbody
alignment
check

involves
the

following

Place

the
car
on
a
level
surface

2
The

weight
of
the
car

should
be

supported
at
the

wheel

locations

3
A

visual

damage
inspection
should
be
made

to

eliminate

unnecessary
measuring
Obviously
damaged
or

misaligned
areas

may
often
be
located

visually
BODY

TRAMMING
SEQUENCE

The

tramming
sequence
will
varv

depending
upon
the

nature
and

IOl
atiun
uf
the

misaligned
area
Priur
to

performing
any

tramming
uperation
the
h

uracy
of

refereJlce

points
to
be
used

must
be

determined
A

measurement

that

originates
from
a
reference

point

included

in
a

damaged
area

will

produce
untrue
results

and

confuse
the
evaluation

of
the

underbody
condition

Unlike

the
conventional

type
of
frame

design
the
unitized

type
of

body
construction

seldom

develops
the
condition

of

diamond
in
the
floor

pan
area
as
a
result

of
front
or

rear
end

collision
Therefore

underbody
alignment

checking
can

usually
originate
from
the

body
floor

pan

area
If

inspection
indicates
that
these

locations
have
been

disturbed

and
are
not
suitable

for

measuring
one
of

the

undamaged

suspension
locations
should
be
used

as
an

initial

reference

point
If

a
rare
situation

should
exist

where
all
of

these
lucalions

are

not
suitable
as

reference

points
repair

operations
should

begin
with
the

body
floor

pan
area
All

other

underbody
components
should
be

aligned

progressively
from
this
area

MEMO

BF

10

CLUTCH

Operating
cylinder
clutch

Operating
cylinder
diameter

T
Ilhtening
torque
19
05
mm
0
750
in

Clutch

assembly
securing
bolt
1
5
to
2
2

kg
m

10
8
to
15
9

ft
Ib

TROUBLE
DIAGNOSES
AND

CORRECTIONS

Condition

Noises
audible

on

pedal

depression

Noises
audible

on

pedal
release
Probable
cause

Excessively
worn

damaged
or

poorly
lubri

cated
release

bearing

Seized
release

bearing
and

diaphragm

spring

fingers

Insufficient

pedal
free
travel

Weakened

unhooked
or
broken
clutch

pedal

return
and
control

springs

Weakened
clutch
withdrawal
lever
return

spring
broken
or
unhooked

Excessive

play
between
clutch
disc
hub
and

drive
shaft

spline

Misalignment
of
clutch
disc
to

flywheel

causes

slight
movement
of

disc
hub
in

respect
of

facings

This
noise
is

especially
audible
with

engine

idling
or

at
low

speed

Broken
or
weakened
clutch
disc
cushion

springs

Insufficient

pedal
free
travel

Weakened
unhooked
or
broken
clutch
con

trol
and

pedal
return

prings

CL
13
Corrective
action

Replace
the

bearing
which

being
cased

cannot
be

greased
inside

Replace
the
release

bearing
Clean

diaphragm

spring
fingers
with
metal
brush
and
smooth

out

bearing
contact
faces
with
felt

polishers

Readjust
pedal
free
travel

correctly

Set

springs
in

position
or

replace
them
if

weakened
or

snapped

Replace
the

spring
or
hook
it

up
as

required

Replace
the
clutch
disc
and

ensure
that

clearance
between

hub
of
new

clutch
and

drive
shaft
is

within
0
50
mm
0

0197
in

endwise
and
0

20
mm
0

0079
in
crosswise

When
clearances
exceed
above
limits

replace

the
drive
shaft
also

Set
level
of
clutch
disc
with
clutch
disc
in

place
on

drive
shaft
set
it
under

slight

rotation
and
check
for
no
run

out

using
a

scriber

Replace
the
clutch
disc

Set

pedal
free
travel

correctly

Check
the

springs
for
correct

position
and

replace
them
if

necessary

CLUTCH

Clogged
vent
hole
in
reservoir

cap
promotes

vacuum

in
master

cylinder

allowing
air

to

inf1ltrate

past
the
seal

Abnormal

lining
wear

Insufficient

pedal
free
travel

The
clutch

grabs

The
clutch

slips
Driver

steps
unnecessarily
on

pedal
this

causes
lin

jog
wear

and

damage
to
release

bearing

Weakened

or

snapped
pressure
springs

Incorrectly
installed

linings

Oil
or

grease
on

flywheel
pressure
plate
and

linings

Loose

disc

linings
due

to

poor
rivet

tightness

Clutch
disc

hub
does
not

slide

freely
on

drive
shaft

spline

Warped
or
cracked

pressure
plate

Misalignment

Stiffened

hydraulic
control
mechanism

Wom
out

lining

Insufficient
clutch

pedal
return

travel
due

to
the
control
and

pedal
return

springs
being

weak
or

misadjusted

Weakened
or
broken

diaphragm
spring

Oil
or

grease
on

linings

eLl5
Clean
reservoir

cap
unclog
the
vent

hole
and

bleed

the

system

Adjust
clutch

pedal
free
travel

correctly

Advise
driver

to
discontinue

wrong

practice

and

step
on

clutch

pedal
only
when
ne

cessary

Check

pressure
springs
for
tension
as

speci

fied
and

replace
springs
if

they
are

unserviceable

Replace

linings
with
new
ones

and
install

them

correctly
Check
clutch
disc
for
center

alignment

Remove
cause

of

leakage
clean

flywheel
and

pressure

plate
thoroughly
replace
linings

If

linings
are
not
worn

replace
defective

rivets

Otherwise

replace
linings
and
clench

rivets

securely

Remove

any

foreign
matter
or

dirt

deposits

from
shaft

splines
When
trouble
is

still

present
replace
damaged
parts

Replace
pressure

plate

Locate
the
defective

point
and
if

possible

adjust
alignment
or

replace
distorted

parts

Check

spring
tension

If

necessary
take

down

pedal
and

lubricate

components

Install
new

linings
and

make
sure
tha

t
the

clutch

disc

pressure
plate
and

flywheel
are

not

damaged

Locate

cause
of
failure
and

replace
defective

springs

Overhaul
clutch
and

replace
springs

Remove
cause
of

leakage
and

replace
linings

if

cleaning
is

ineffective