seat adjustment DATSUN B110 1973 Service Repair Manual
[x] Cancel search | Manufacturer: DATSUN, Model Year: 1973, Model line: B110, Model: DATSUN B110 1973Pages: 513, PDF Size: 28.74 MB
Page 53 of 513
AUTOMATIC
TRANSMISSIO
N
TROUBLE
DIAGNOSES
AND
ADJUSTMENT
INSPECTION
AND
ADJUSTMENT
BEFORE
TROUBLE
DIAGNOSIS
Testing
instrument
for
inspection
Checking
oil
level
Inspection
and
repair
of
oil
leakage
Checking
engine
idling
rpm
Checking
and
adjusting
kick
down
switch
and
downshift
solenoid
Inspection
and
adjustment
of
manual
linkage
Checking
and
adjusting
inhibitor
switch
STALL
TEST
Stall
test
procedures
Judgement
As
the
troubles
on
the
automatic
transmission
can
be
mostly
repaired
by
doing
simple
adjustment
so
do
not
disassemble
immediately
if
the
auto
m
tic
transmission
is
in
trouble
Firstly
inspect
and
adjust
the
auto
matic
transmission
with
mounting
on
vehicle
by
observing
the
trouble
shooting
chart
If
the
trouble
could
not
be
solved
by
this
procedure
then
remove
and
disassemble
the
automatic
transmis
sion
It
is
advisable
to
check
overhaul
and
repair
each
point
in
the
order
itemized
in
the
trouble
shooting
chart
l
In
the
trouble
shooting
chart
the
diagnosis
items
are
arranged
in
the
order
from
easy
to
difficult
and
there
fore
please
follow
these
items
The
transmission
should
not
be
removed
unless
necessary
2
The
test
and
adjustment
for
trou
ble
diagnosis
should
be
made
on
the
basis
of
standard
values
and
the
data
should
be
recorded
ROAD
TEST
Car
speed
at
gear
shift
Checking
speed
changing
condition
Checking
items
during
speed
change
Shift
schedule
LINE
PRESSURE
TEST
Line
pressure
governor
feed
pressure
Judgement
in
measuring
line
pressure
TROUBLE
SHOOTING
CHART
Inspecting
items
Trouble
shooting
chart
for
3N71
B
Automatic
Transmission
Trouble
shooting
guide
for
3N718
Automatic
Transmission
CONTENTS
AT
49
AT
49
AT
49
AT
50
AT
50
AT
50
AT
51
AT
51
AT
51
AT51
AT
52
INSPECTION
AND
AD
JUSTMENT
BEFORE
TROUBLE
DIAGNOSIS
Testing
instrument
for
inspection
1
Engine
tachometer
2
Vacuum
gauge
3
Oil
pressure
gauge
It
is
convenient
to
install
these
instruments
in
a
way
that
allows
meas
urements
to
be
made
from
the
driver
s
seat
Checking
oil
level
In
checking
the
automatic
transmis
sion
the
oil
level
and
the
condition
of
oil
around
the
oil
level
gauge
should
be
examined
every
5
000
km
3
000
miles
These
steps
are
easy
and
effec
live
in
trouble
shooting
as
some
change
of
oil
conditions
are
linked
with
developed
troubles
in
many
cases
AT
49
AT
52
AT
52
AT
53
AT
53
AT
53
AT
53
AT
53
AT
54
AT
54
AT
54
AT
55
AT
5B
For
instance
Lack
of
oil
causes
defective
opera
tion
by
making
the
clutches
and
brakes
slip
developing
severe
wear
The
cause
of
this
operation
is
that
the
oil
pump
has
begun
to
suck
air
which
caused
oil
foaming
thus
rapidly
deteriora
ting
the
oil
quality
and
pro
ducing
sludge
and
varnish
Meanwhile
excessive
oil
is
also
bad
as
in
the
case
of
a
lack
of
oil
because
of
oil
foaming
by
being
stirred
up
by
the
gears
Moreover
in
high
speed
driving
with
excessive
oil
in
the
trans
mission
the
oil
often
blows
out
from
the
breather
I
Measuring
oil
level
When
checking
the
fluid
level
start
the
engine
and
run
it
until
normal
operating
temperatures
oil
tempera
ture
50
to
800e
122
to
176
F
Approximately
ten
minute
operation
will
elevate
the
temperature
to
this
range
and
enigne
idling
conditions
are
stabilized
Then
apply
the
brakes
and
move
the
transmission
shift
lever
Page 55 of 513
c
Inspection
and
adJu
Stmenf
trouble
first
check
the
linhge
f
no
1
i
jI
fect
is
found
in
the
lin1
age
check
of
manu
a
l
liiiJ
i
the
inhibitor
switch
Th
d
1F
aI
S
t
th
I
I
f
e
a
JU
i
J
u
epara
e
e
range
se
eet
ever
rom
Iy
important
ii
s3
ns
etion
of
oil
the
lower
shift
rod
and
turn
the
range
1
level
for
the
automatiC
tran
smission
select
lever
to
N
Therefore
great
care
should
be
exer
Note
In
the
position
N
the
slot
of
cised
because
defective
adjustment
will
the
manual
shaft
is
vertical
result
in
the
breakdown
of
the
trans
By
the
use
of
the
tester
check
the
two
bIack
yellow
BY
wires
from
the
inhibitor
switch
in
the
ranges
N
and
P
and
the
two
red
bIack
RB
wires
in
the
range
R
for
continuity
Turn
range
select
lever
to
both
directions
from
each
lever
set
position
and
check
each
continuity
range
It
is
normal
if
the
electricity
is
on
while
the
lever
is
within
an
angle
of
about
3
0
on
both
sides
from
each
lever
set
line
How
ever
if
its
continuity
range
is
obvi
ously
unequal
on
both
sides
the
adjustment
is
required
f
any
malfunction
is
found
un
screw
the
fastening
nut
of
the
range
selector
lever
and
two
fastening
bolts
of
the
switch
body
and
then
remove
the
machine
screw
under
the
switch
body
Adjust
the
manual
shaft
correct
ly
to
the
position
N
by
means
of
the
selector
lever
When
the
slot
of
the
shaft
becomes
vertical
the
detent
works
to
position
the
shaft
correctly
with
a
click
sound
Move
the
switch
slightly
aside
so
that
the
screw
hole
will
be
aligned
with
the
pin
hole
of
the
internal
rotor
combined
with
the
manual
shaft
and
check
their
alignment
by
inserting
a
1
5
0101
0
0591
in
diameter
pin
into
the
holes
If
the
alignment
is
made
correct
1
5ten
the
switch
body
with
the
bolts
pull
out
the
pin
and
tighten
up
the
screw
again
into
the
hole
and
fasten
the
selector
lever
as
before
Check
over
again
the
continuity
with
the
tester
If
the
malfunction
still
remains
replace
the
inhibitor
switch
mission
Inspection
Pull
the
selector
lever
toward
you
and
turn
it
so
far
as
p
to
1
range
where
clicks
will
be
felt
by
hand
This
is
the
detent
of
manual
valve
in
the
body
and
indicates
the
correct
posi
tion
of
the
lever
Inspect
whether
the
pointer
of
selector
dial
corresponds
to
this
point
and
also
whether
the
lever
comes
in
alignment
with
the
stepping
of
posi
tion
plate
when
it
is
released
Adjustment
This
procedure
can
be
accom
plished
by
referring
to
Removal
and
nstallation
Checking
and
adjusting
inhibitor
switch
The
inhibitor
switch
serves
to
light
the
reverse
lamp
in
the
range
R
of
the
transmission
operation
and
also
to
rotate
the
starter
motor
in
the
ranges
N
and
P
j
r@
I
If
r
f
B
@
I
Jt
@
@
c
v@
i
r
fji
AT109
1
Inhibitor
switch
2
Manual
shaft
3
Washer
4
Nut
5
Manual
plate
Fig
AT
II
0
Con
truction
of
inhibitor
witch
6
Washer
7
Nut
8
Inhibitor
switch
9
Range
select
lever
Check
whether
the
reverse
lamp
and
the
starter
motor
operate
normal
ly
in
these
ranges
If
there
is
any
t
ki
A
mm
ATIC
TRANSMISSION
STALL
TEST
The
purpose
of
this
test
is
to
check
the
transmission
and
engine
for
trou
ble
by
measuring
the
maximwn
num
bers
of
revolutions
of
the
engine
while
vehicle
is
held
in
a
stalled
condition
and
the
carburetor
is
in
full
throttle
operation
with
the
selector
lever
in
AT
51
rang
s
D
2
and
I
respectively
and
by
com
pairing
the
measured
re
sults
with
the
standard
values
Standard
stall
revolution
1
750
to
2
000
rpm
Components
to
be
tested
and
test
items
1
Clutches
brake
and
band
in
trans
mission
for
slipping
2
Torque
converter
for
function
3
Engine
for
overall
property
Stall
test
procedures
Before
testing
check
the
enigne
oil
and
torque
converter
oil
warm
up
the
engine
cooling
water
to
the
suitable
temperature
by
warming
up
ope
ration
at
1
200
rpm
with
the
selector
lever
in
the
range
P
for
several
minutes
and
warm
up
the
torque
converter
oil
to
the
suitable
temperature
60
to
IOOoC
140
to
2120F
1
Mount
the
engine
tachometer
at
a
location
that
allows
good
visibility
from
the
driver
s
seat
and
put
a
mark
on
specified
revolutions
on
the
meter
2
Secure
the
front
and
rear
wheels
completely
with
chocks
and
apply
the
hand
brake
Be
sure
to
depress
the
brake
pedal
firmly
with
the
left
foot
before
depressing
down
the
accelerator
pedal
3
Throw
the
selector
lever
into
the
range
D
4
Slowly
depress
the
accelerator
pedal
down
till
the
throttle
valve
is
fully
opened
Quickly
read
and
record
the
engine
revolution
when
the
engine
begins
to
rotate
steadily
and
then
release
the
accelerator
pedal
5
Turn
the
selector
lever
into
N
and
operate
the
enigne
at
approxi
mately
1
200
rpm
for
more
than
one
minute
to
cool
down
the
torque
con
verter
oil
and
coolant
6
Make
similar
stall
tests
in
the
ranges
2
I
and
R
Note
The
stall
test
operation
as
spec
ified
in
the
item
4
should
be
made
within
five
seconds
If
it
takes
too
long
the
oil
deterio
rates
and
the
clutches
brake
Page 333 of 513
ENGINE
Defective
spark
plug
Improper
ignition
timing
Defective
ignition
coil
Disconnection
of
high
tension
cable
Loose
connection
or
disconnection
in
prima
ry
circuit
Lack
of
fuel
Dirty
fuel
strainer
Dirty
or
clogged
fuel
pipe
Fuel
pump
will
not
work
properly
Carburetor
auto
choke
will
not
work
prop
erly
Improper
float
level
adjustment
Improper
idling
Dirty
or
clogged
carburetor
Damaged
anti
dieseling
solenoid
Clogged
breather
pipe
Incorrect
spark
plug
tightening
or
defective
gasket
Improper
grade
engine
oil
or
viscosity
drop
ping
Incorrect
valve
clearance
Compression
leak
from
valve
seat
Sticky
valve
stem
Weak
or
defective
valve
springs
Compression
leak
at
cylinder
head
gasket
Sticked
or
defective
piston
ring
Worn
piston
ring
or
cylinder
Troubleshooting
procedure
Pour
engine
oil
from
plug
hole
and
then
measure
cylinder
compression
Clean
adjust
plug
gap
or
replace
Adjust
Replace
Replace
Repair
or
replace
Supply
Replace
Clean
Repair
or
replace
Check
and
adjust
Correct
Adjust
Disassemble
and
clean
Replace
Clean
Tighten
to
normal
torque
or
replace
spark
plug
assembly
Replace
with
proper
grade
oil
Adjust
Remove
cylinder
head
and
lap
valves
Correct
or
replace
valve
Replace
valve
springs
Replace
gasket
Replace
piston
ring
Overhaul
engine
Compression
increases
Trouble
in
cylinder
or
piston
ring
Compression
unchanged
Compression
leak
from
valve
cylinder
head
or
head
gasket
ET
28
Page 406 of 513
CD
r
Fuel
level
adjustment
@
@
It
I
Float
2
Float
seat
FUEL
SYSTEM
2
Adjust
bottom
float
position
so
that
clearance
h
between
the
float
seat
and
the
needle
valve
stem
is
1
3
to
1
7
mm
0
0512
to
0
0669
in
when
the
float
is
fully
raised
Bend
the
float
stopper
properly
as
required
l
lH
H
ld
up
@
h
Fast
idle
adjustment
Remove
the
bi
metal
cover
3
I
Float
stopper
4
Needle
valve
2
Place
the
fast
idle
arm
on
the
second
step
of
the
fast
idle
earn
Then
adjust
the
fast
idle
adjusting
screw
in
such
a
way
that
the
clearance
of
the
throttle
valve
shown
at
A
in
the
illustration
will
be
the
specifications
See
Figure
EF
26
Fig
EF
25
Adjsuting
float
level
Turn
down
the
float
chamber
to
allow
the
float
coming
into
contact
with
the
needle
valve
and
measure
H
shown
in
Figure
EF
25
When
the
H
is
approxi
mately
19
0
mm
0
748
in
top
float
position
is
correct
The
top
float
position
can
be
adjusted
by
bending
float
seat
Upon
completion
of
the
adjustment
check
fuel
level
with
the
atta
led
level
gauge
Clearance
of
throttle
Engine
revolution
valve
A
mm
in
rpm
Manual
0
80
to
0
88
transmission
0
0315
to
0
0346
1
750
to
2
050
Automatic
1
07
to
l
l
7
transmission
0
0421
to
0
0461
2
650
to
2
950
Fast
idle
earn
steps
5
C
0
J
t
E
r
L
E
I
I
Ogc
l
0
0
JO
A
Throttle
chamber
Fig
EF
26
Adjusting
fast
idle
EF
15
Page 413 of 513
ENGINE
Choke
unloader
clearance
carburetor
body
C
between
choke
valve
and
mm
in
Bi
metal
resistance
ohms
2
01
0
07911
8
6t09
0
Accelerator
pump
Injector
hole
Return
spring
Fuel
pressure
mm
in
g
mm
Ib
in
kg
cm
2
psi
kg
lb
0
5
0
0197
78
I
I
0
18
2
6
Manual
transmission
Automatic
transmission
Weight
2
8
6
2
2
9
6
39
Example
1
215
represents
215
100
2
15
mm
0
0846
in
diameter
TROUBLE
DIAGNOSES
AND
CORRECTIONS
There
are
various
causes
of
engine
tarubles
It
some
times
happens
that
the
completely
effective
carburetor
seems
apparently
to
have
some
troubles
when
electric
system
is
defective
Therefore
whenever
the
enigne
has
troubles
electric
system
must
be
checked
first
before
adjusting
the
carburetor
In
the
following
table
the
symptoms
and
causes
of
carburetor
tarubles
and
remedies
for
them
are
listed
to
facilitate
quick
repairs
Troubles
Possible
causes
Remedies
Overflow
Dirt
accumulated
on
needle
valve
Clean
needle
valve
Fuel
pump
pressure
too
high
Repair
pump
Needle
valve
seat
improper
Lap
or
replace
Excessive
fuel
consumption
Fuel
overflows
See
above
Each
main
air
bleed
clogged
Clean
Gauge
plate
adjustment
incorrect
Correct
adjustment
Choke
valve
does
not
open
Adjust
Outlet
valve
seat
of
accelerator
pump
im
proper
Lap
or
replace
Linked
opening
of
secondary
throttle
valve
too
early
Adjust
Power
shortage
Each
main
jet
clogged
Clean
Each
throttle
valve
does
not
fully
open
Adjust
Fuel
pump
operated
improperly
Repair
EF
22