service interval DATSUN 210 1979 Service Manual

Engine
Control
Fuel
Exhaust

Systems

REMOVAL

WARNING

When

replacing
fuel
line

parts
be

sure
to
observe
the

following

a
Put
a
CAUTION
INFLAM

MABLE

sign
in

workshop

b
Be

sure
to
furnish

workshop

with
In

asphyxiator

c
Be
sure
to
disconnect

battery

ground
cable
before

conducting

operations

d
Put
drained
fuel
in
an

explosion

proof
container
and

put
on
lid

securely

FUEL
TANK

Sedan

I

Disconnect
battery
ground
cable

2
Drain
fuel
from
fuel
tank

then

disconnect
fuel
hose

3
Remove

filler
hose

protector

and

inspection
cover
in

luggage
com

i
tl

f

I

Filler
hose

protector

2

Inspection
cover

FE561

Fig
FE
4

Removing
Filler
Hose

Protector
and
Inspection

Cover

4
Disconnect
fuel
filler
hose

vent

hoses
and
fuel
tank

gauge
unit
wire

connector

I

JI

I

2
FE562

3

Fig
FE

5
Di

connecting
Ho
e
and

Connector
5
Remove
fuel
tank

protector

6
Remove
fuel
tank

Hatchback
and

Wagon

I
Disconnect

battery

ground
cable

2
Drain

fuel
from
fuel
tank

then

disconnect
fuel
hose

3

Remove

luggage
carpet
luggage

board

inspection

covef
and
side
finish

er

4
Disconnect
fuel
filler
hose

vent

hoses
and
fuel
tank

gauge
unit
wire

connector
See

Fig
FE

5

5
Remove

fuel
tank

protector

6
Remove
fuel
tank

FUEL
TANK
GAUGE
UNIT

Sedan

1
Remove

inspection
cover
in

lug

gage
compartment
See

Fig
FE
3

2

Disconnect
fuel
tank

gauge
unit

wire
connector

3
Remove
fuel
tank

gauge
unit

Hatchback
and

Wagon

I
Remove

luggage
carpet
luggage

board
and

inspection
cover

2

Disconnect
fuel
tank

gauge
unit

wire

connector

3
Remove
fuel
tank

gauge
unit

CHECK
VALVE

Sedan

I
Remove

inspection
cover
and
fuel

filler
hose

protector
in

luggage
com

partment

2
Remove
check
valve

Hatchback

I
Remove

luggage
carpet
luggage

board
and

luggage
side
finisher

2
Remove
check
valve

Wagon

I
Remove

rear
side
finisher
in

luggage
compartment

2
Remove
check
valve

FE
5
FUEL
TUBE

Fuel
tubes
are
serviced

as
an
assem

bly
so
that
the

replacement
of
fuel

tube

can
be

easily
done
However

do

not
disconnect

any
fuel
line
unless

absolutely
necessary

Drain

fuel
from
fuel
tank

2

Loosen
fuel
hose

clamps
and
dis

connect
fuel
tube

at
each
end

Note

Plug
hose
and
tube

openings
to

prevent
entry
of
dust
or
dirt
while

removing

3
Unfasten

clips
that

hold
tube
on

underbody
and

remove
tube

from
the

car

FUEL

FILTER

I
Disconnect
fuel
hoses
from
fuel

filter

by

removing
clamps

2

Take
out
fuel
strainer
and
discard

it

INSPECTION

FUEL
TANK

Check
fuel
tank
for

cracks
or
defor

mation

If

necessary
replace

FUEL
HOSE

Inspect
all
hoses
for
cracks

fatigue

sweating
or
deterioration

Replace
any
hose
that
is

damaged

FUEL
TUBE

Replace
any
fuel
tube
that

is
crack

ed
rusted

collapsed
or
deformed

FUEL
FILTER

Replace
fuel
filter
at
the

specified

maintenance
interval
or

if
it

becomes

clogged
or
restricted

Fuel
filter
is
of
a

cartridge
type
and

cannot
be
cleaned

Always
replace

with

a
new
one

CHECK
VALVE

1
Blow
air

through
connector

on

fuel
tank
side

A
considerable
resistance
should
be

felt
at
the
mouth
and
a

portion
of
air

I

I

3
Set

temperature
lever
to
max

imum

cold

position
Air

Conditioning

4

Sefblower
to
maximum

speed

S

Check

sight
glass
after

the

lapse

Almost
no

refrigerant

Check
item

Temperature
of

high
prenure

and
low

pressure
lines
Almost
no
difference

between

high
presswc

and

lowpressufC
side

temperature

State
in

sight
gl
ltS3
Bubbles
flow
continu

ously
Bubbles
will

disappear
and
some

thing
like

mist
wiD

flow
when

rerrigel
l
llt

is

nearly

gone

AC256

Pressure
of

system
High
pressure
side
is

abnormally
low

Repair
Stop
compressor
and

conduct
an

overall

check

Note

a
The
bubbles
seen

tbrough
the

sight

glass
are
influenced

by
the
ambient

tempemture
Since
the
bubbles
are

bard
to
show

up
in

comparatively

low

tempemtures
below
200C
680

F
it
is

possible
that
a

slightly

larger
amouot
of

refrigemot
would

be
filled
if

supplied
according
to

tbe

sight
glass
Be

sure
to
recheck

the
amount
when
it

exceedS
20
C

680F
In

higher
tempemture
tbe

bubbles
are

easy
to
show

up
Insufficient

High
pressure
side
is

warm
and

low

pressure

side
is

fairly
cokt

The
bubbles
are
seen

at
intervals
of
1
2

seconds

AC257

Both

pressures
on

high

and
low

pressure
sides

are

slightly
low

Check
for
gas

leakage

repair
as

required
re

plenish
and

chaxge

system

b
Wben
the
screen
in
tbe
receiver

drier
is

clogged
tbe
bubbles
wiD

appear
even
if
the
amount
of

refrig

erant
is

nonnaL
In
this
case
tbe

outlet
side

pipe
of
tbe
receiver
drier

becomes

considembly
cold

AC
16
of

abOut
five
rilintJtes

Jullgeaccording

to
the

following
table

Suitable
Too
much

refrigerant

High
pressure
side
is

hot
and
low

pressure

side

is
cold
High
pressure
side
is

abnormally
hot

Almost
transparent

Bubbles

may
appear

when

engine
speed
is

raised
and
lowered
No
bubbles
can
be
seen

No
clear
difference
exists
these
two

conditions

nl

AC258

Both

pre55ures
on

high

and
low

pressure
sides

are

normal
Both

pressures
on

high

and
low

pressure
sides

are

abnonnally
high

Discharge
refrigerant

from
service
valve
of

low

pressure
side

PERFORMANCE
TEST

Check
for
the
amount
of

refrigerant

in
the

system
can
be
made

by
meas

uring
pressure
on

discharge
side

The
correct
amount
of

refrigerant
is

in

the

system
if

pressure
on
the

discharge
side
i
within
the

specified

range
For
details
refer
to
Trouble

Diagnoses
and
Corrections
for

per

fannance
test

Overcharging
will
show

up
in

higher

presstJre
on

discharge
side