Specifications

Fuel
System
Datsun
ped
With an automatic transmission are
denoted DCH340
41A
The
model
number and suffix
are
pnnte
on
the
carburetor
body
The
DCH340 carburetor IS
essen
tially
the same as the DCH306 car
buretor
Figs
38 and 39
CARBURETOR
REMOVAL AND
INSTALLATION
This
procedure
IS
proVided
to
help
you
remove
the carburetor so
you
can
either disassemble
It
for
cleanIng
or
overhaul or
replace
It
With
a new or
rebUilt umt
If
you
are
replacIng
It be
sure
you
obtaIn the
replacement
umt
from a
reputable
auto
parts
store and be
sure
that
you
fully
understand the terms
of
any
warranty
that
may
be
proVided
With
the umt
To
replace
the carburetor
proceed
as
follows
Disconnect the
battery ground
cable
to
prevent
aCCidental
shorts
2
Remove
the aIr
cleaner
cap
and
fIlter element
3
Remove
all
hoses tubes and other
attachments from
the aIr cleaner
body
and label them for
easy
reassembly
4
Remove the aIr cleaner
body
5 Disconnect
the
accelerator
linkage
and mechanical and
or
electncal
choke connectIOns
as
necessary
@
CHOKE CHAMBER
@
CENTER BODY
@
THROTTLE CHAMBER
1 LOCK LEVER
2 FILTER SETSCREW
3 FUEL
FILTER
4 FUEL NIPPLE
5 NEEDLE VALVE BODY
6 NEEDLE VALVE
7 FUEL CHAMBER
PARTS
8 ACCELERATING PUMP
PARTS
9 ALTITUDE COMPENSATOR
PIPE
CALIFORNIA MODELS
10 COASTING AIR BLEED ADJUSTING
SCREW
l1 HIGH
SPEED
ENRICHER AIR BLEED
12 CHOKE VALVE
13 ACCELERATING PUMP
LEVER
14 THROTTLE RETURN
SPRING
15
ACCELERATING
PUMP ROD
16 AUTOMATIC CHOKE
COVER
17 AUTOMATIC CHOKE BODY AND
DIAPHRAGM
CHAMBER
18 RICHER JET
19 COASTING AIR BLEED I
20 PRIMARY MAIN JET
21
SECONDARY
MAIN JET
22
SECONDARY SLOW
AIR BLEED
23 SECONDARY
SLOW
JET
24 PLUG
25 SAFE ORIFICE
26
COASTING JET
27
SECONDARY
MAIN AIR BLEED
28 POWER
VALVE
29 PRIMARY MAINAIR BLEED
30
PLUG
31 PRIMARY SLOW JET
32 NO 2 PRIMARY
SLOW
AIR
BLEED
33
PRIMARY AND
SECONDARY SMALL
VENTURI
34
VENTURI STOPPER SCREW
35 CHOKE
CONNECTING ROD
36 ANTI
DIESELING SOLENOID VALVE
37
FAST
IDLE CAM
38
DIAPHRAGM
CHAMBER PARTS
39 IDLE LIMITER CAP
40 IDLE ADJUST SCREW
41 IDLE ADJUST SCREW
SPRING
42
THROTTLE ADJUST SCREW
43
THROTTLE ADJUST SCREW SPRING
44 PRIMARY AND
SECONDARY
THROTTLE
VALVE
45
BCD 0
CALIFORNIA
MODELS
46 VACUUM
CONTROL
SOLENOID VALVE
47 BCD 0 NON CALIFORNIA
MODELS
NOTE DO
NOT
REMOVE THE PARTS
MARKED
WITH AN
ASTERISK
44