Specifications

Datsun
float and needle
and
seat
assembly
4
Tip
the
carburetor
mam
body
and
catch the
accelerator
pump
ball
and
weight Many
will
have four
parts
m order of
removal
gasket
plug weight
ball
5
Remove the choke
cover
and
choke
housmg
parts
Do
not re
move choke valve unless
neces
sary
for
replacement
6 Remove
the
accelerator
pump
plunger
and
power
piston
from
cover
7
Remove
the
wmdow
assembly
ventuns
jets
and
other mam
body
parts
Be
sure to use the
proper
size
tool for
removmg
jets
8
Remove the
diaphragm
assembly
solenOid
valve
and fast
Idle
carn
If
equipped
9
Separate
the
throttle
body
from the
mam
body
Watch It
One
screw
has a vacuum hole dnlled m It Be
sure
It
gets
back In
the correct
place
IO Remove
the Idle
screws but do not
dIsassemble throttle
body
unless
necessary
for
replacement
II Clean and
Inspect
all
parts
carefull
y
12 Assemble
the carburetor
usmg
new
gaskets
and
needle and
seat
assembly
Perform
adjustments
as
necessary
Fuel
System
FUEL PUMP
Checking
Pressure
Fuel
pressure
IS measured
with
a
gauge capable
of
measunng
vacuum
and fuel
pump
pressure
If
you
can
get
access to
such
a
gauge
here s how
you
use
It
DIsconnect the
center
high
tensIon
lead from the dlStnbutor
cap
so the
engme
cannot start
2
Disconnect the fuel
Ime
leadmg
to
the carburetor at the fuel
pump
3
Attach
the
pressure
gauge
to the
port
from which
the lme
was dIS
connected
at the
pump
4
Crank
the
engme
through
a
few
revolulions and
observe the
read
mg
on
the
gauge
If
the
readmg
does not meet the
speclficalions
as
listed
In
the chart
below
the fuel
pump
IS
probably
defeclive
A
low
readmg
can
be
cause for
poor
en
gme
performance
at
high speed
Generally
when a
pump
IS
defec
live the
engme
will
not start
or
wIll stall a
short
while
after
con
summg
the fuel
that remams
m
the
carburetor bowl
5
Reconnect center
high
tensIOn lead
to dlstnbutor
cap
after
checkmg
pressure
FUEL PUMP
SPECIFICATIONS
Datsun Model Pressure kPa
psl Capacity
@1
000 RPM
for 1 Minute
8210 23 34 1 Pint
610 21 26 3 0 3 8 211 Pints
710 21 26 3 0 3 8 211 PInts
57