Of Engine; And; Adjustment 59 - Datsun 320-U Service Manual

ADJUSTMENT
AND
INSPECTION
OF
ENGINE
The engme
must
always
be
operated
m
the best
possIble
condItIon
and for
thIS purpose
pencxhc
mspectlon
and
adjustment
must
be
mamtamed
m a
certam
order
whIle
m use
as
well
as
after
overhaul
Order of
Inspection
and
Adjustment
of
Engine
1
Check the
coolmg
water
water
level
and
extent
of ftlthmess
2
Inspect
the
battery
all
connections
level of
electrolyte
speclftc gravIty
of
electrolyte
and
voltage
3
Inspect
the
011
amount
fIlthmess
clasSIfICation
and
vIscosIty
4
Cleaning
of
spark plugs and
adjustment
of theIr
gaps
5 Measurement
of compressslOn pressure of
cyhnders
The
standard
com
pressIOn pressure of the engme
IS
approx
163
lbs
per sq
m
at
350
r
p
m
Measurement
of
pressure IS
made
m
the
followmg
manner
see
FIg
1
First
warm
up the
engme temperature of
coolmg
water
70 80 C Then
remove
all
spark plugs
and
pull
out
the throTtle knob all the
way
that
IS m
the carburetor
tne
throttle valve
and
choke
valve
are fully
opened
press
a
compres
SIOn
gauge agamst
each
spark plug
hole
and
runmng
the
starter
motor
with
a
fully charged battery
read
the
maxImum
pressure ob
tamed wIthm 5 8
rotations
of
xhe
motor
ThIS
measurement must
be
made
as
qUIckly
as pOSSIble
It the compressIOn
pressure
of
anyone
cyhnder
differs
by
10
lb
jsq
In
or more
from
that
of
another the
cause must
be
m
vestlgated
6
Check
and
adjust the dlstn
butor
If the
breaker
contact
pomts
have defective
contact
surfaces
dress
them and
adjust
the
gap
to
O 45 0 55
mm
Also
turn
the
cam
of the dls
tnbutor
clockwIse
and
check
to
see
If the
governor
can
carry
out advancmg
functIOn
7
Adjust
IgnItIOn tlmmg
correctly
By utJhzmg
a
power tlmmg
hght
the function of
the
governor
can
be checked
together
WIth the IgnitIOn
tlmmg
tilummatlon of carnk
pulley
Will enable
to
m
spect
the
condItIons
of
runnmg
and
advancmg
of
the
tlmmg
B T
D C 20
8
Inspection
of fuel
pump and
gasohne stramer
9
Adjust
the slow
settmg
of
carburetor
Fig Compression Gauge
1
49