key DATSUN B110 1969 Service Repair Manual

Page 29 of 136


Bogine

HeIght
dIfference

less
than

0
0197

III

AdJustmg
washer

0006

tluckness
m

Fig
60
AdJustmg
sprocket
tooth

heIght

a
IT

Match
mark

e

8

Tlsnaft

0w
1
hol

0

0
0
Matohma
k

Key
groove

Fig
61

Settmg
cham

r

f

r
0

tt

I

I

l
f

I

4

Fig
62
Cham

tensloner
Installation
Notes
a
Make
sure
that
the
camshaft

sprocket
dowel
hole
and

crankshaft

sprocket
key
are
in
line
and
both
the

dowel
hole
and

key
are
located
down

ward

b
Set
the

timing
cham

making
its

mating

marks
meet
with
those
of
crankshaft

sprocket
and
camshaft

sprocket
at

the

right
hand
side

Install
the

tlmmg
cham
tenslOner

and

tighten

the
tenslOner

bolts
to

a

torque
of
43
to

58

ft
Ib

Install
the
crankshaft
011
thrower

Check
the
temloner

spondle
projection

Wear
limit

Spindle
projection

t

Fig
63
Carn

sprocket
gear
mstallatlon

Fig
64
Checkmg
the

tension
spindle

projection

21

Page 50 of 136


Fuel

Sptem

The

power
valve
mechanIsm

IS
of
a
vacuum

actuated
boost

type
and

Improves
hIgh
speed

drivIng

The
throttle

opener
control

system
Incor

porates
a
servo

diaphragm
The

servo

dIaphragm
helps
open
the
throttle
valve
at
a

decreasIng
speed
so
as
to
reduce
the
emISSIOn

of

hydrocarbons
to
a
minImum

An
antI

dlesehng
olen01d
IS
used
as

a
means

of

preventIng
dlesehng
When
the

IgnItIOn

key
IS
turned
ofT
the
fuel

passage
Involved
In

the
slow

system
IS
closed
and
the
fuel

supply

IS
shut
down

completely

In
the
chok
mechanIsm
an
electric

automatIc
choke
IS
used
to

automatically
con

trol
the
choke
valve

operatIOn
durIng
the

war

m

up
of
the

engIne

The
carburetor
for
automatic
transmiSSIOn
IS

eqUIpped
WIth
so
called
dash

pot
that
IS
It

makes
smooth

deceleratIng
WIthout

engIne

stall
at

any
operatIng
conditIOn

These
carburetors

are

qUIte
SImIlar
In

ap

pearance
as

explaIned
above

except
the
dash

pot
for
the
automatIc
transmISSion
model

Adjustment

Idhng
Adjustment

Idle
mixture

adjustment
requIres
the
use

of
a

CO
meter
When

prepatlng
to

adjust
Idle
mIxture
It
IS
essentIal
to
have
the
meter

thoroughly
warmed
and
cahbrated

Warm

up
the

engIne
suffiCiently

ContInue

engme
operatIOn
for

one
mmute
un

der

ldhng
speed

Adjust
throttle

adjustIng
screw
so
that

engme

speed
IS
800

rpm
m
N

pos1tIon
for

automatic
transmiSSIOn

Check

IgmtlOn
tl
If

necessary

adjust
It
to
the

speCificatIOns

IgnItIOn
tImlo
800
rpm

Adjust
Idle

adJustmg
screw
so
that
CO

percen

tage
IS
1

5
0
50
at
800
ns

a
On
automatIc

transmiSSIOn

eqUipped
model
check
must
be

done
In
the
D

poSItIon
Be
sure
to

apply

parkmg
brake
and
to
lock
both
front
and
rear

wheels
With
wheel
chocks

b
Hold
brake

pedal
while

steppIng
down
on

accelerator

pedal
OtherWise
car
Will
rush
out

dangerously

On

automatIc
transmiSSIOn

eqUIpped
model

make

sure
that
the

adjustment
has
been
made

With
the
selector
lever
In
N

posItIon

And
then
check
the

specificatIOns
With
the

lever
In
D

pOSitIOn
Insure
that
CO

percent

and
Idle

speed
are
as
follows

Idle

rpm
650

for
Manual
transmISSion

for
Automatic
transmISSion

Fig
91
External
view
of
carburetor

3