Datsun BLUEBlRD P 410 Series Service Manual page 80

ADJUSTMENT AND
INSPECTION OF ENGINE
The
engIne must
always
be
operated
In
the best possIble
condmon and for
tms purpose
penochc
InspectIon and
adjustment
must be
maIntaIned
In a
certaJD
order whIle
In use as
well
as
after overhaul
Order of Inspection
and
Adjustment
of
Engine
1
Check the
coohng water water
level and
extent
of fIlthIness
2
Inspect
the
battery
all
connectIons
level of
electrolyte specIfIC gravIty
of
electrolyte
and
voltage
3
Inspect
the OIl
amount
fIlthIness
classlflcanon and VISCOSIty
4
CleanIng
of
spark plugs
and
adjustment
of theIr
gaps
5
Measurement of compresssIOn pressure of
cylInders
The standard
com
preSSIOn pressure of
the
engIne
IS
approx
163 lbs per
sq
In
at
350
r
p
m
Measurement of pressure
IS
made
In
the
follOWIng
manner see
FIg
1 FIrst
warm
up the engIne temperature
of
coolIng water
70
800C
then
remove
all
spark
plugs
and
pull
out the
throttle knob all
the way that
IS In
the
carburetor
the throttle valve and choke valve
are
fully opened
press
a
compres
SIOn
gauge
agaInst
each
spark plug
hole and runnIng the
starter
motor
WIth
a
fully charged battery
read the
maXImum
pressure ob
tamed WIthIn 5 8
rotatIons
of the
motor
Tms
measurement must
be made
as
qUICkly
as
pOSSIble
It the compreSSIOn pressure
of anyone
cyhnder
dIffers
by
10
lb
sq
In or more
from that of
another the
cause
must be
m
vestIgated
6 Check and
adjust
the dlstn
butor
If the breaker
contact
pOIntS
have defectIve contact
surfaces
Fig
1
CompressHm Gauge
dress them and
adjust
the gap
to
O 45 0 55
mm
Also
turn
the
cam
of
the
dIS
tnbutor clockwIse and check
to
see
If the governor
can
carry
out advanCIng
functIon
7 Adjust
Ignmon tImIng
correctly
By unhzmg a
power
tImIng
lIght
the functIon of the governor
can
be
checked
together
wIth the
IgnItIOn
tImIng
IllumInatIOn of carnk
pulley
WIll enable
to m
spect the condItIOnS of runnIng and
advancmg
of the tImlllg
8
T D C 2
0
8
InspectIon
of fuel pump and
gasolIne straIner
9
Adjust
the slow
settIng
of carburetor
65