BRAKE
BOOSTE
R
INSPECTION
OF
OPERATION
Checking
vecuum
pressure
I
Connect
a
vacuum
gauge
in
the
tine
between
check
velve
and
brake
booster
1
Check
valVe
2
Vacuum
gauge
BA942
Fig
BR
26
Air
Tighte
Te
Set
Up
Probable
cause
Air
leakage
at
check
valve
2
Air
leakage
at
push
rod
seal
3
Air
leakage
between
valve
body
and
seal
4
Air
leakage
at
valve
plunger
seat
5
Damaged
piping
or
joints
Air
tight
test
Under
loed
Fifteen
seconds
after
engine
is
stopped
and
brake
fully
applied
ob
serve
the
rate
of
drop
in
air
pressure
registered
by
vacuum
gauge
If
vacuum
Probable
cause
Air
leakage
at
check
valve
2
Damaged
diaphragm
3
Reaction
disc
dropped
off
4
Air
leakage
at
poppet
assembly
seat
and
valve
body
Inspec
tinK
chec
k
valve
Remove
clip
and
disconnect
hoses
Brake
System
2
Start
engine
end
merease
engine
speed
Stop
engine
when
vacuum
gauge
indicates
500
mmHg
l9
69
inHg
Air
tiKht
test
No
load
Fifteen
seconds
after
engine
is
stopped
observe
the
rate
of
drop
in
air
pressure
registered
by
vacuum
gauge
If
vacuum
pressure
drop
below
the
specified
value
refer
to
the
following
chart
to
determine
the
cause
of
failure
Maximum
vacuum
leakage
25
mmHg
0
98
inHgl
Corrective
action
Replace
check
valve
Replace
brake
booster
as
an
assembly
Repair
or
replace
pressure
drops
below
the
specified
value
refer
to
the
following
chart
to
determine
the
cause
of
failure
Maximum
vacuum
leakage
25
mmHg
0
98
inHgl
Corrective
action
Replace
check
valve
Replace
brake
booster
as
an
assembly
at
connections
The
check
valve
can
now
be
removed
BR
12
JQeL
i
l
f
BR119A
Fis
BR
27
Location
of
Check
Valllt
2
Using
a
brake
booster
testel
apply
a
vacuum
pressure
of
500
mmHg
19
69
inHg
to
the
port
of
check
valve
on
the
brake
booster
side
If
vacuum
pressure
drops
below
the
specified
value
in
15
seconds
replace
check
valve
with
a
new
one
Maximum
vacuum
leakage
01
eheck
valn
10
mmHg
0
39
inHgl
3
When
pressure
is
applied
to
the
b
rake
booster
side
of
check
valve
and
valve
does
not
open
replace
check
valve
with
a
new
one
I
0
tLLiJ
Manifold
side
Brake
booster
side
1
Spring
2
Valve
BR963
Fig
BR
28
Check
Value
4
When
installing
check
valve
be
careful
to
avoid
incorrect
connectiolU
See
Fig
DR
28
Operetlns
test
1
Connect
an
oil
pressure
gauge
to
brake
ine
at
connection
on
master
cylinder
2
Install
a
pedal
force
gauge
on
brake
pedal
3
Start
engine
end
increase
engine
speed
until
a
vacuum
pressure
of
500
mmHg
19
69
inHg
is
registered
on
vacuum
pressure
gauge
With
a
steady
vacuum
pressure
of
500
mmHg
19
69
inHg
measure
oil
pressure
with
res
pect
to
each
pedal
operating
force
Relationship
between
oil
pressure
and
pedal
operating
force
is
illustrated
in
Fig
BR
29
If
test
results
are
not
as
specified
in
Fig
BR
29
check
brake
booster
for
condition
in
manner
des
cribed
under
Inspection
before
re
moval
of
this
unit
REMOVAL
M60
120
1
710
AA
I
1
1
110
1
560
1
v
e
100
1
420
I
90
1
280
I
1
1
80
1
140
I
Z
I
t
70
1
000
i
60
850
I
o
50
710
d
40
570
g
i
gl
j
ll
10
140
J
0
1
0
2
0
221
441
Rod
operating
force
kg
lb
Brake
System
Also
check
brake
line
for
evidence
of
fluid
leakage
Note
Detennine
whether
source
of
problem
is
in
brake
booster
or
check
valve
Before
you
reach
a
fmal
conclusion
always
inspect
check
valve
first
o
10
20
30
40
50
22
44
66
88
110
Pedal
operating
force
kg
lb
BA121A
Fig
BR
29
Performance
Diagram
of
Brake
Booster
Remo
parts
in
numerical
order
enumerated
BR593
ti
J
Fig
BR
30
Procedures
for
Removing
Brake
Booster
ADJUSTMENT
I
Adjust
the
length
of
push
rod
to
the
value
indicated
below
Length
ad
justment
of
push
rod
is
made
at
the
tip
of
push
rod
Length
A
9
75
to
10
00
mm
0
3839
to
0
3937
in
j
f
Irl
I
l
if
L
J
BA290
Fig
BR
31
Length
A
BR
13
BR288
Fig
BR
32
Adjusting
Push
Rod
Length
2
Install
clevis
Adjust
length
of
operating
rod
to
specified
value
length
B
135
mm
5
31
in
c
f
lIJ
t
t
B
BR947
Fig
BR
33
Length
B
INSTALLATION
Install
in
the
reverse
sequence
of
removaJ
IiJ
Tightening
torque
Master
cylinder
to
brake
booster
0
8
to
1
1
kg
m
5
8
to
8
0
ft
Ib
Brake
booster
to
body
0
8
to
1
1
kg
m
5
8
to
8
0
ft
lbl
Note
After
brake
boOster
is
properly
installed
in
car
conduct
an
air
tight
and
op
rational
tests
as
previously
described
Condition
Unbalanced
brakes
Brakes
fade
Brakes
drag
Brake
System
Probable
cause
Improper
tire
inflation
Improp
r
adjustment
of
shoe
to
drum
clear
ance
Grease
oil
mud
or
water
on
linings
or
pads
Mud
in
brake
drum
Deterioration
oflinings
or
pads
Excessi
wear
of
linings
or
pads
Wheel
cylinder
in
poor
condition
Poor
sliding
condition
of
brake
shoe
Looseness
of
cylinder
body
or
back
plate
securing
bolts
Scored
or
out
f
round
drums
Sticking
wheel
cylinder
cups
Deformation
of
back
plate
Incorrect
adjustment
of
wheel
bearings
Incorrect
adjustment
of
wheel
aligoment
Looseness
of
leaf
spring
securing
U
bolts
Brake
fluid
has
too
low
boiling
point
Use
of
improper
linings
or
brake
linings
are
contaminated
Brake
drums
are
out
f
round
Hydraulic
connections
master
cylinder
and
wheel
cylinders
are
corroded
or
damaged
Bleed
screw
is
open
Pedal
linkage
is
binding
or
push
rod
adjust
ment
is
too
long
Master
cylinder
compensator
part
is
ob
structed
Seized
master
cylinder
piston
Poor
shoe
condition
Poor
wheel
cylinder
condition
Deformation
of
piston
cups
Poor
condition
of
caliper
because
of
faulty
piston
seals
Excessive
runaut
of
rotor
Hand
brake
will
not
return
Clogged
m
ter
cylinder
return
port
BR
20
Corrective
action
Inflate
to
correct
pressure
Readjust
Clean
brake
mechanism
and
check
for
cause
of
problem
Replace
linings
or
pads
Clean
Replace
Replace
Repair
or
replace
Adjust
F
ten
or
replace
Recondition
or
replace
brake
drum
as
re
quired
Check
for
improper
lining
contact
with
dflllll
and
grind
lining
if
necessary
Recondition
or
replace
cylinder
Replace
Adjust
or
replace
Adjust
Tighten
or
replace
Drain
and
fill
system
with
appr
d
fluid
Replace
linings
Repair
or
replace
as
necessary
Repair
as
necessary
Close
screw
and
bleed
system
Lubricate
linkage
check
pedal
return
spring
for
condition
and
adjust
push
rod
as
neces
sary
Blowout
foreign
matter
with
compresSed
air
Disassemble
master
cylinder
and
replace
piston
Bleed
system
Clean
and
repair
Repair
or
replace
Replace
Replace
piston
seals
Turn
rotor
on
lathe
or
replace
Check
and
repair
Clean
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
DATSUN
210
Model
8310
Series
SECTIONBE
BODY
ELECTRICAL
SYSTEM
CONTENTS
BODY
ELECTRICAL
WIRING
DESCRIPTION
FUSE
AND
FUSIBLE
LINK
WIRING
WIRING
HARNESS
LOCATION
OF
ELECTRICAL
UNIT
ELECTRICAL
UNIT
OF
LIGHTING
SYSTEM
BULB
SPECIFICATIONS
REMOVAL
AND
INSTALLATION
For
lamp
IGNITION
SWITCH
COMBINATION
SWITCH
ILLUMINATION
CONTROL
UNIT
AIMING
ADJUSTMENT
ELECTRICAL
UNIT
OF
SIGNAL
SYSTEM
BE
12
TURN
SIGNAL
SWITCH
BE
12
HORN
RELAY
BE
12
HAZARD
SWITCH
BE
12
STOP
LAMP
SWITCH
BE
12
BACK
UP
LAMP
SWITCH
BE
12
DOOR
SWITCH
BE
12
METERS
AND
GAUGES
BE
13
COMBINATION
METER
BE
13
TACHOMETER
BE
14
FUEL
LEVEL
AND
WATER
TEMPERATURE
INDICATOR
SYSTEM
BE
14
WARNING
SYSTEM
BE
15
CHARGE
WARNING
SYSTEM
BE
15
BRAKE
WARNING
SYSTEM
BE
15
BE
2
BE
2
BE
2
BE
4
BE
5
BE
8
BE
9
BE
9
BE
10
BE
10
BE
10
BE
11
BE
11
OIL
PRESSURE
WARNING
SYSTEM
SEAT
BELT
WARNING
SYSTEM
ELECTRICAL
ACCESSORIES
WINDSHIELD
WIPER
AND
WASHER
REAR
WINDOW
WIPER
AND
WASHER
CIGARETTE
LIGHTER
RADIO
CLOCK
REAR
WINDOW
DEFOGGER
STARTING
SYSTEM
For
automatic
transmission
models
HEATER
DESCRIPTION
AIR
FLOW
REMOVAL
AND
INSTALLATION
ADJUSTING
HEATER
CONTROL
DISASSEMBLY
AND
ASSEMBLY
OF
HEATER
UNIT
INSPECTION
WIRING
DIAGRAMS
AND
TROUBLE
DIAGNOSES
ELECTRICAL
SYSTEM
BLOCK
DIAGRAM
FUSE
BLOCK
CIRCUIT
SUPPLY
ROUTING
LIGHTING
SYSTEM
SIGNAL
SYSTEM
METERS
AND
GAUGES
WARNING
SYSTEM
ELECTRICAL
ACCESSORY
SYSTEM
HEATER
BE
15
BE
15
BE
17
BE
17
BE
18
BE
20
BE
20
BE
21
BE
21
BE
23
BE
23
BE
23
BE
24
BE
26
BE
27
BE
27
BE
28
BE
29
BE
29
BE
30
BE
31
BE
36
BE
41
BE
44
BE
4B
BE
55
m
c
n
to
l
l
I
g
iF
0
1
To
side
marker
lamp
L
H
2
To
headlamp
L
H
3
To
horn
L
H
4
To
front
combination
lamp
L
H
5
To
cooler
co
pressor
Air
Con
models
6
To
oil
pressure
switch
7
To
condenser
8
To
horn
R
H
9
To
front
combination
la
t11p
R
H
10
To
side
marker
lamp
R
H
11
To
headlamp
R
H
12
To
body
earth
13
To
fusible
link
14
To
inhibitor
relay
AfT
model
15
To
aut6
choke
relay
16
To
ignition
coil
17
To
condenser
18
To
washer
motor
19
To
engine
harness
No
2
@
20
To
alternator
21
To
starting
motor
22
To
throttle
opener
solenoid
Except
FU
models
23
To
fuel
cut
solenoid
Except
FU
models
24
To
throttle
switch
FU
models
25
To
fuel
cut
solenoid
FU
models
26
To
auto
choke
27
To
VC
cut
solenoid
M
T
and
Calif
AfT
models
28
To
distributor
29
To
thermal
transmitter
30
To
body
harness
31
To
low
pressure
switcn
Air
Con
models
32
To
rear
window
washer
motor
33
To
FICO
solenoid
Air
Con
models
34
To
room
lamp
harness
35
To
cooling
unit
Air
C
on
models
36
To
heater
motor
37
To
engine
revolution
switch
FU
models
38
To
rear
wiper
switch
39
To
wiper
motor
40
To
brake
level
switch
41
To
belt
timer
42
To
horn
relay
43
To
stop
lamp
switch
44
To
kickdown
switch
AfT
model
45
To
hazard
flasher
unit
46
To
turn
signal
flasher
unit
47
To
ignition
switch
48
To
steering
lock
49
To
wiper
switch
50
To
turn
signal
and
hC
rn
switch
51
To
lighting
switch
5i
To
hazard
switch
53
To
belt
switch
54
To
door
switch
L
H
55
To
hand
brake
switch
56
To
automatic
transmission
control
indicator
AfT
models
57
To
instrument
harness
58
To
check
connector
I
0
i
a
z
Z
G
z
tIl
tIl
a
Z
Il
I
to
o
Co
m
16
n
n
OJ
1
3
Body
Electrical
System
ELECTRICAL
UNIT
OF
LIGHTING
SYSTEM
CAUTION
Before
starting
to
work
on
any
part
of
electrical
system
disconnect
battery
ground
cable
BULB
SPECIFICATIONS
Item
Headlamp
Main
Dilnmer
Front
combination
lamp
Turn
signal
Clearance
Rear
combination
lamp
Turn
signal
Stop
Tail
Back
up
Side
marker
lamp
License
plate
lamp
Turn
signal
pilot
lamp
High
beam
pilot
lamp
Charge
warning
lamp
Oil
pressure
warning
lamp
Brake
warning
lamp
Seat
belt
warning
lamp
Ash
tray
illumination
lamp
Heater
panel
illumination
laf
lp
Room
lamp
Luggage
room
lamp
Hatchback
and
Wagon
Rear
window
defogger
lamp
AfT
selector
lever
illumination
lamp
Capacity
SAE
trade
number
12V
60
50W
l2V
27
8W
1157
l2V
27W
12V
27
8W
12V
27W
12V
8W
l2V
3
4W
l2V
3
4W
l2V
3
4W
12V
3
4W
12V
3
4W
12V
3
4W
12V
3
4W
l2V2W
l2V
3
4W
l2V
lOW
Quantity
2
2
1156
2
1157
4
1156
2
67
4
158
2
158
2
158
158
158
158
158
158
l2V
5W
12V
14W
12V
3
4W
158
BE
9
ILLUMINATION
CONTROL
UNIT
Body
Electrical
System
8
GY
GW
AIMING
ADJUSTMENT
To
adjust
vertical
aim
use
adjusting
screw
on
upper
side
of
headlamp
and
to
adjust
horizontal
ailn
use
adjusting
screw
on
side
of
headlamp
BE1200
Fig
BE
I3
Illumination
Control
Unit
1
Vertical
adjustment
2
Horizontal
adjustment
BE1210
Fig
BE
14
Aiming
Ad
iusting
Screws
Note
Before
makiiIg
headlamp
aim
ing
adjustment
observe
the
follow
ing
instructions
a
Keep
all
tires
inflated
to
correct
pressures
b
Place
car
and
tester
on
one
and
BE
11
same
flat
surface
c
See
that
there
is
no
load
in
car
coolant
engine
oil
fIlled
up
to
correct
level
and
full
fuel
tank
other
than
the
driver
or
equivalent
weight
placed
in
driver
s
position
d
For
details
refer
to
SAE
J599d
When
performing
headlamp
aiming
adjustment
use
an
aiming
machine
aiming
wall
screen
or
headlamp
tester
For
operating
instructions
of
any
almer
it
should
be
in
good
repair
calibrated
and
used
accordi
g
to
respective
operation
manuals
supplied
with
the
unit
If
any
aimer
is
not
available
aiming
adjustment
can
be
done
as
follqws
Turn
headlamp
low
beam
on
H
Horizontal
center
line
of
headlamps
BE297D
Fig
BE
I5
Aiming
Adjustment
Unit
mm
in
Note
a
Adjust
headlamps
so
that
upper
edge
of
hot
spot
is
equal
in
height
to
headlamp
height
and
left
edge
of
hot
spot
is
equal
in
height
to
each
center
line
of
headlamps
b
Dotted
lines
in
illustration
show
center
of
headlamp