1969 DATSUN B110 fuel pump

able
of

Contents

MAINTENANCE
TUNE

UP

DIsassembly
32

InspectIOn
RepaIr
33

VALVE

CLEARANCES
6

AdJustmg
Regulator
33

ENGINE

OIL

6

Assembly
33

OIL
FILTER

7

COOLANT
7

COMPRESSION
7

ELECTRICAL
SYSTEM

BATTERY

8

IGNITION
TIMING

8
STARTER

36

DIstributor

Breaker
Pomt

9
Removal

37

Condenser

9

InstallatIOn
37

Spark

Plugs
9
Trouble

Shootmg
37

Carburetor

9

ALTERNATOR

36

Idle
LImIter

Cap

10

Removal

37

Dash

Pot
automatic
transmISSIOn

11
InstallatIOn

37

model

only

11
REGULATOR

39

Carburetor

Return

Sprmg

11

DeSCriptIOn
39

Fuel
Filter
11

Trouble

Shootmg
40

ENGINE

IGNITION
SYSTEM

DESCRIPTION
14

DISTRIBUTOR
44

REMOVAL
14

ConstructIOn

44

INSTALLATION
14

Checkmg
and

Adjustment
44

CLEANING
INSPECTION
14

SP
ARK
PLUGS

46

DISASSEMBL

Y
14

DeSCriptIOn
46

INSPECTION
REPAIR

18

InspectIOn
46

PreparatIOn
18

Cleamng
Regap
47

Cyltnder
Head

18

Valve

Assembly
18

Valve

Spnng
19

Valve
Rocker
Shaft

Rocker
Arm

19

FUEL

SYSTEM

Valve
LIfter
Push
Rod

20

Camshaft
Camshaft

Bearmg
20
FUEL
FILTER

50

Valve

Tlmmg
20

DESCRIPTION
50

Cyltnder
Block

21
REMOVAL

50

PIston
Piston
Pm

Plsto
LRmg
21

INSTALLATION

50

Connectmg
Rod

23
FUEL

PUMP

50

Crankshaft

24

DeSCriptIOn
50

Bushmg
Bearing
24

Testmg
51

Crankshaft

Sprocket
Removal

DIsassembly
52

Camshaft

Sprocket
25

InspectIOn
52

Flywheel
25

Assembly
52

ASSEMBL
Y

25

CARBURETOR

52

PrecautIOn

25

DeSCription
52

Cyltnder
Head

25

Adjustment
53

PIston

ConnectIng
Rod

26

Removal

58

Engme
26

DIsassembly
58

OIL
PUMP

32

Cleanmg

InspectIOn
59

Removal

Engme
m

vehicle
32

Assembly
InstallatIOn

60

I

Bngine

Remove
the
altel
nator
and

engine

mounting

bracket

L
H
slde

Remove
the
crankshaft

pulley

Remove
the

011

pump
together
With
the
011

filtel

Remove
the

high
tensIOn
cable
wIth
the

dlstnbutor

cap
on

Remove
the

spark
plugs

Remove
the
dlstllbutor

assembly

Remove
the
carburetor

Remove
the
rocker
cover

Remove
the
thermo
itat

houslllg

Remove
the
manifolds

Remove
the
water

pump

Remove
the
fuel

pump

Fig
16
Manifolds
removal

Fig
17
Water
pump
removal

18
Remove
the
rocker
shaft

assembly
and

push

rods

Remove
the

cylInder
head

assembly

Invert
the

engine

Fig
18

Rocker
shaft

assembly
removal

7

1

l

I

h
Y
r

I
w

L
1

Fig
19
Cylinder
head
bolts
removal
sequence

o

Fig
20
011
strainer
removal

j

BDgiDe

TIghtening
torque
40
to
43
ft
Ib

Install
the

push
rod

Install
the
rocker
haft

assembly
and

tighten

the
I
ocker
haft
bracket
bolts
to
the

specIfied

torque

Tightening
torque

15
to

18
ft
lb

Note

TIghtening
operation
should
be

made

gradually
10

separating
two
or
three

stages
and

outwardly
from
the
center

bracket

In
tall
the
Intake
and
exhaust
mamfolds

TIghtening
torque

65
to
10

ft
lb

AdJu
t
valve
clemance
wIth
the

specIfied

dlmenblOn

Install
the
rocker

cover
and
carburetor
assem

bly

I
n
tdll
the
watel

pump
and
thermostat

Tlghtemng
tOl

que

65
to
10
ft
lb

I
nstall
the
crankshaft

pulley

Tighten
the
crank

pulley
bolt
to
the

specIfied

torque

TIghtenIng
torque

109
to

116
ft
lb

Fig
67
Installation
of
Intake
and
exhaust
manifolds
Intake

at
cold

00138

In

Exhaust

at
cold

00138

In

Fig
68
Valve
clearance

adjustment

TlqhtCnlnq
torque
15
to
16kg
m

109
to
116ltlb

Fig
69
Crankshaft

pulley
installation

Install
the
at

pump
with
011
filter

Install
the
alternator
fan
and
fan
belt

Install
the
fuel

pump

Install
the
dlstnbutor

assembly

31

BBgiBe

Fig
70

Tlmmg
mark

Fig
71
Dlstnbutor
mstallatlon

Notes
a
Set
the
No
1

piston
to
its

top

dead
center

of
the

compression
stroke

b
Before
installation
return
the

distributor

rotqr
approximately
60

degrees
from
Its

regular
position
Insert

the

assembly
meshing
the
distributor

drive

gear
and
driven

gear

After
installation
the
distributor

rotor

should

come
into
contact
wIth
the
mark

on
the
rotor

cap
fittmg
as
shown
in
the

Figure

Install
the

spark

plugs
and
connect
the

distrIbutor
to

plug
high
tensIOn
lead

wire

Install
the
fuel
hoses
and
tubes

Install
the

clutch
cover

assembly

Install
the

engme
shngers
and
crankcase

ven

tilatIOn

hose
Fig
72

Removal
of
011
pump

TrochoId

Fig
73011

pump

OIL
PUMP

Removal

Engine
in
vehlCIe

Dram

engme
OIl

Remove
the
front
stabilIzer

Remove
the

splash
shield
board

Detach
the
011

pump

body
together
with
drIve

gear

spmdle

Disassembly

PrIor
to

dlsassembhng
check
to
determme

that
the

pump
IS
defective

Take
out

a
total
of
2
bolts

securmg
the

pump

cover
to
the

pump
body
The
outer
and
mner

Dlsmount

the

engme
from
the

workmg

stand
rotors
and
drive
shaft
can
then
be
dlsassem

Install
the

engme
mountmgs
bled

32

Icnition
Sptem

Ovcrhc
Jtmg

Norm
Jl
i
r

rJ
I

ttr
I
i

V

Carbon
fould

Fig
85

Spark
plug
Life

plug
heat

range

Carbon
fouled

Dry
fluffy
carbon

depo
lts
on

the

Insulator
and
electrode

were

mostly

caused

by
slow

speed
dnvlng
In

cIty
weak

Ig

nltlOn
too
nch
fuel

mixture

dirty
aIr
cleaner

etc

It
IS
advIsable
to

replace
WIth

plugs
havmg

hotter

heat

range

011

fouled
Wet
black

depoSits
show

excesSive

oIl
entrance

Into
combusllon

chamber

through

worn

rmgs
and

pIstons
or
excessIve
clearance

between
valve

gUIdes
and

stems
If
the

same

condition

remams
after

repair
use
a
hotter

plug

Overheatmg
WhIte

or

hght
gray
msulator

WIth

black
or

gray
brown

spots
and

blUIsh

burnt
electrodes
indIcate

engme
overheatIng

Moreover
th
e

appearance
results
from
in

correct

IgnitIon

tIming
loose

spark
plugs
low

guel
pump
pressure
wrong
selectIOn

of
fuel
a

hotter

plug
etc

It
IS
adVisable
to

replace
WIth

plugs

havmg

colder

heat

range

After

cleaning
dress

electrodes
With

a
small

fine
file
to
flatten

the
surfaces
of
both

center

and
Side

electrodes
In

parallel
Set

spark
plug

gap
to

specification
FIg
86

Settmg
spark

plug
gap

Install

spark
plugs
and

torque
each

plug
to
11

to
15
ft
Ib

Connect

spark
plug
wires

Cleaning
and

Regap

Clean

spark
plugs
In

a
sand

blast

type

cleaner
A
VOId

excessIve

blasting
Clean
and

remove
carbon

or
OXide

depoSits
but
do
not

wear

away
porcelain
If

depos1ts
are
too

stub

born
discard

plugs

After

cleaning
spark
plugs
renew

firing
sur

face
of
electrodes
With
file

mentioned
above

Then

gap
spark
plugs
to
0
030
to
0
035
In

uSing
a
round

wire
feeler

gauge
All

spark

plugs
new
or
used
should

have
the

gap

checked
and
reset

by
bending

ground

electrode

II

ruel

Sptem

FUEL
FILTER
DESCRIPTION

The
fuel
filter
IS
of

a

cartndge
type
It
uses

paper
element

as
traIner

element
which
can

be
checked
for
condItIOn
from
outsIde

ThIS

filter
cannot
be
cleaned

Replace
the
filter
at

the

peclfied
servICe
Interval
01
If
It
becomes

clogged
or
I
estncted

REMOVAL

DIsconnect
Inlet
and
outlet
fuel
hnes
from

fuel
filter
and

remove
fuel
filter

if

EF005

Fig
87
Sectional
view
of

cartridge
type
fuel
filter
Note
Before

disconnecting
fuel
lines
use

a
container
to
receive
the

remaining
fuel

In
lines

INSTALLATION

InstallatIOn

IS
the

reverse
of
removal

FUEL
PUMP

Description

The
fuel

pump
transfers

gasoline
from
the

tank
to
the
carburetor
In

suffiCient

quantity

to

meet

engine
requIrements
at

any

speed
or

load

The
fuel

pump
IS
of
the

diaphragm
type

The
fuel

pump
conSIsts
of

a

body
rocker
arm

and
link

assembly
fuel

diaphragm
fuel

diaphragm

spnng
seal
Inlet
and

outlet

valves

The
fuel

diaphragm
consists
of

specially

treated
rubber
whIch
IS
not
affected

by

gasohne
held

together
WIth
two
metal
diSCS

and
a

pull
rod

t

Fig
88
SchematiC
view
of
fuel

pump
R

0

Fuel

Sptem

Testing

A
fuel

pump
IS

operatIng
properly
when

1tS

pressure
IS
Within

specifications
and
ItS

capacIty
IS

equal
to

the

engine
s

reqUIrements

at
all

speeds

Pressure
and

capacity
must

be
determined

by

two
tests
With
the

pump
mounted
on
the

engIne
Be

sure
that

there
IS

gasohne
m

the

tank

when

conductIng
these

tests

Fig
89
Pull

rod
removal
StatIc

Pressure
Test

The
static

pressure
test
IS
conducted

as

follows

Disconnect
the
carburetor

fuel
line
at
the

car

buretor

Install
the

necessary

adapter
and
tee

fitting

to
the
fuel
Ime
and
attach

a
SUitable

pressure

gauge

Start

and
run

engme
at

varymg
speeds

The

readIng
on
the

gauge
IS

the
static

fuel

pressure
and

thIS

should
remam
wlthm

the

follOWing
Itmlts

2
61b

sq
m

Pressure

below
the
lower
hmlt

IndlCates
ex

treme

wear
on

one

part
of
a
small
amount

of

wear
on
each

working

part

They
also
md1cate
a

ruptured
dIaphragm

worn

warped
dirty
or

gummmg
valves
and

seats

or
weak

dIaphragm
return

spring

Pressure
above

the

upper
hmlt

Indicates
an

excessIVely
strong
dIaphragm
that

IS
too

tight

ThIS

condItIOn

reqUIres
removal
of
the

fuel

pump

assembly
for

replacement
or

repair

I

V
lvc
llllh

2

PdlklOg

3
Retamer

4

Stre

5

p

6

Ga
ket

7
Screw

8
Washer

prln

9
Rocker
Jrm

10
Rocker

pm

II

Ro
ker
fm

pTln

12

Spdcer

13

Diaphragm
assembly

14

15
Retiuner

16

Diaphragm
sprtng

17
Washer

5PIlllg

18
Nul

19
Washer

plalO

20
Ga
ket

21

Spacer

22

Complete
body
lower

23
Connector
anlet

24
Connector
outlet

Fig
90
Structure

of
fuel

pump

51

Fuel

Sptem

Capacity
Test

The

capaclty
test

IS
used

only
when
the
statIc

plessure
IS

wlthm

specIficatIOns
The

capacity

test

IS
conducted

as
follows

Disconnect
the
fuel

p1pe
at
the
carburetor

Place
a
bUltable

contamer
at
the
end
of
the

pIpe

Start
the

engme
and
run
at
1

000

rpm

The

pump
should
delIver
1
US

pt
of
fuel
In

one
mmute
or
less

If

no

gasolme
or

only
a
lIttle
flows
flOm

open

end
of

pIpe
the
fuel

pIpe
IS

clogged
or
the

pump
I

malfunctlOntng
Before

removing
the

pump
remove
the

gas
tank

cap
dIsconnect

both
Inlet
dnd
outlet

pIpes
and
blow

through

them
wIth
an
aIr
hose
to
make

sure
that

they

are
clear

Thl
wIll
elImmate

pOSSible
clogged
gas

tramer
In

the
fuel
tank
Reconnect
the

pIpes

to
the

pump
and
rete
t
flow

Removal
and

DisassenbIy

Remove
the
fuel

pump

assembly
by
un

screwmg
two

mounting
nuts
and
dIsassemble

In
the

follOWing
order

Separate
the

upper

body
and
the
lower

body

by
unscrewmg
the

body
set
screws

Take
off
the

cap
and
the

cap

gasket
by

I

emOVIng
the

cap
screw

Unscrew
the
elbow
and
the
connector

Take
off
the
valve
retainer

by
unscrewmg
two

valve
retamer
screws
Two
valves
are

eaSIly

removed

To
remove
the

diaphragm
diaphragm
sprmg

lower

body
seal
washer
and
lower

body
seal

from

the
lower

body
press
down
the

dIaphragm
counter
to
the
force
of
the

dIaphragm
spring
and
while

dOIng
thIS
cant

the

dIaphragm
so
that
the

rectangular
part
m

the
lower
end
of
the

pull
rod
IS

unhooked
from

the
rocker
arm
lInk

Inspection

Check
the

upper
and

lower
bodIes
for
cracks

2
Check
the
valve

assembly
for
wear
of
the

valve
and
valve

sprmg
Blow
the
valve
assem

bly
by
breath
to
examme
ItS
functIOn

Check

the

dIaphragm
for
small
holes
cral
ks

and

wear

Check
the
rocker

dl
m

for
wear

at
the

portIOn

In
contact
With
the
camshaft

Check
the
rocker
arm

pin
for
wear

since
a

worn

pm
may
cause
011

leakage

Check
all
other

components
for

any
abnor

mahtIes
and

replace
With

new

parts
as

requIred

Assembly

Assembly
IS
done
In

reverse
order
of
disassem

bly
For

reassembly
and
remstallatlOn
the

followmg
matters
should
be
noted

Use
new

gasket

Lubricate
the
rocker
arm
link
rocker
arm

pm

and
lever

pm
before
mstallatlOlI

To
test

the
functIOn

poSItIOn
the
fuel

pump

assembly
about
33ft
above
fuel
level
WIth
a

pipe
connecting
the
fuel

pump
and
the
fuel

filter
and

operate
the
rocker
arm

by
hand
If

fuel
IS
drawn

up
soon
after

the
rocker
arm
IS

released
the
functIOn

of
the

pump
IS

satIsfactory

CARBURETOR

Description

The
carburetors

are
of
a
downdraft

type

whIch

IS

deSIgned
and
bUIlt
to

Increase

power

and
fuel

economy
as
well

as
to
reduce
the

em1SSlon
of
exhaust

gases

These
carburetors

present
several
dIstinct

features
of

Importance
to
the

car
owners

A

summary
of
features

IS
as
follows

Secondary
throttle
valve

IS

operated
by
throt

tie
lever
The

hIgh

power
and

good
ac

celeratIon

are

gained
With

combmatlOn
of

the

auxlhary
valve

Acceleratmg
pump
glves
excellent
ac

celeratIon