fuel cap release DATSUN 210 1979 Service Manual

5

The

pressure

gauge
indicates

static
fuel

pressure
in
the
line

The

gauge
reading
should
be
within
the

specified
value

Fuel

pump
pressure

0
21
to
0
27

kg
em2

3
0
to
3
8

pli
I

Note
If
the

fuel
in
the
carburetor

float
chamber
has

run
out
and

engine
has

stopped
remove

clip
and

pour
fuel
into

carburetor
Fasten

clip
securely
and

repeat
static

pres

sure
test

If

pressure
is
not
within
the

specifi

ed
limit
remove

pump
as
an

assembly

CAPACITY
TEST

The

capacity
test
is

conducted

only

when
static

pressure
is
within
the

specification
To

conduct
this

test

proceed
as
follows

1
Disconnect

pressure
gauge
from

T
connector
and
in
its
vacant

place

install

a
suitable

container

as
a
fuel

sump

2

Start

engine
and
run
at

1
000

pm

3

Pump
should
deliver
the

specified

amouni

of
fuel

If

little
or
no
fuel
flows
from

open

end
of

pipe
it
is

an
indication

that

fuel
line

is

clogged
or

pump
is

mal

functioning

Fuel

pump
capacity

450

cc
27
46

eu
inl
min

at
1
000

rpm

REMOVAL
AND

INSTALLATION

Note
When

disconnecting
fuel

lines

use
a

container
to
receive

fuel

remaining
in
fuel
hoses

I
Disconnect

inlet
and

outlet
fuel

hoses
from
fuel

pump

2
Remove

fuel

pump

3
To

install
reverse
the
order
of

removal
Engine
Fuel

DISASSEMBLY

@@

@@

@

@@

1

Remove
screws
and
detach

upper

and
lower
bodies

2

Remove
screws
and
take
off

cap

and

cap
gasket
from

upper
body

3

Remove
inlet

and
outlet

connee

tors

4
Remove
valve
retainer
screws
and

take

off
valve

retainer

S
To

remove
diaphragm

press

down
its
center

against
spring
force

With

diaphragm
pressed
down
ilt

it

until
end
of

pull
rod
touches
inner

wall
of

body
Then
release

diaphragm

to
unhook

push
rod

Note
Be

careful
not
to

damage
dia

phragm
or
oil

seal

INSPECTION

Check
all

components
for
cracks

EF
7
I

Packing

2
Valve
a5scm

bly

3
Retainer

4
Screw

5

Diaphragm
assembly

6

Diaphragm
spring

7
Retainer

8

Diaphragm
assembly

9

Complete
body
lower

10
Screw

11
Washer

spring

12
Fuel

pump
cap

13

Cap
gasket

14
Connector
inlet

15
Connector
outlet

16
Rocker

arm

spring

17
Nut

18

Washer

spring

19
Washer

pJain

20
Gasket

21

Spacer

22
Rocker

pin

23

Spacer

24
Rocker

arm

EC134

Fig
EF
16

Fuel

Pump

wear
or

any
abnormalities
and

replace

with
new

parts
if

necessary

ASSEMBLY

I
To
assemble

reverse
the
order
of

disassembly
Closely
observe
the

following
instructions

Use
new

gaskets

Lubricate
rocker
arm

rocker
arm

link

and
rocker
arm

pin
before

installation

2
After

assembly
test
the
function

as
follows

a

Position
fuel

pump
assembly
about

I

meter
3
3
ft

above
fuel

level
of

fuel
strainer
and

connect
a

pipe

from
strainer
to

fuel

pump

b

Operate
rocker
arm

by
hand
If
fuel

is

drawn

up
soon
after
rocker

arm
is

released
fuel

pump
is

functioning

properly

DASH
POT
SYSTEM

These

carburetors
are

equipped

with
a
dash

pot
interlocked
with
the

primary
thrott
Ie
valve

through
a

link

mechanism

The
dash

pot
prevents
the

throttle

valve

from

closing
abruptly
thereby

reducing
He
emissions

during
deceleia

tion
or

gear
shifting

In
automatic

transmissi9fi
models

it

also

prevents
engine
stall

resulting

from

quick
application
of
the
brake
or

from

quick
release
of
the

accelerator

pedal
after
it
s
been
tread

upon

slightly

INSPECTION

AND

ADJUSTMENT

CARBURETOR
IDLE
R
P
M

AND
MIXTURE
RATIO

CO
idle
adjustment
with

CO
meter

Refer
to
Carburetor
Idle

rpm
and

Mixture
Ratio
Section
ET
for
check

ing
and
a

justment

CO
idle

adjustment
without

CO
meter

Non
California
models

Refer
to

Carburetor
Idle

rpm
and

Mixture
Ratio
Section

ETl
fot
check

ing
and

adjustment

Idle

limiter

cap

Refer
to
Idle

Limiter

Cap

SeCtio

ET
for

checking
and

adjustment

FUEL

LEVEL

I

With

engine
idling

visually
check

fuel
level

through
sight
window
of

float
chamber

Fuel
level
is
correct

if
it

is
at
the

indicator

point

Note

Fuel
level
indicator

point
is

located
IS
mm
0
59
in
below

top

of
carburetor

body
H

as
shown
in

Figure
below
Engine
Fuel

EF088A

Fig
EF
33

Checking
Fuel
Level

To

adjust
fuel
level

proceed
as

follows

2

Remove
choke

chamber

3

Turn
down

choke
chamber

to

allow

float
to

come
into
contact
with

needle

valve
and

measure
H

shown

below

When
H

is

approximately
15
mm

0
59
in

top
float

position
is
correct

The

top
float

position
can
be
ad

justed
by
bending
float
seat

Upon

completion
of
the

adjust

ment

check
fuel

level
with

attached

level

gauge

nhH

J

1
Float

2
Float

stopper
3
Float

seat

4
Needle
valve

Fig
EF
34

Adjusting
Floot
Level

EF

14
4

Adjust
bottom
float

position
so

that
clearance

hl
between

float

seat

and
needle

valve
stem
is
1
3
to
I
7
mm

0
051
to
0
067
in
when

float
is

fully

raised
Bend
float

stopper
as

required

5

Install
choke
chamber

6
After

adjustments
in

steps
3
and

4
above
have
been

made
make

sure

that
when
fuel
is
delivered
to
the

float

chamber
the

fuel
level

is
maintained

within
the

specified
value

H