Datsun BLUEBlRD P 410 Series User Manual

FUEL PUMP
Type
Method dnven
DIaphragm spnng
Free
legnth
Length
In use and tensIOn
Rocker arm
spnng
Free
length
Valve
spnng
Free
length
ThIckness of valve
Performance
Max
quanuty
dIscharged
Max
pressure dIscharged
Max
degree
of
suctIon
vacuum
Hand
pnmer quanty
dJscharged
DIaphragm pump
Dnven
by
camshaft
36
5 O
1
mm
18 mm
1
6
o 1
kg
30mm
95 mm
1 6mm
1
300 cu cm
per
mInute at
1000
r
p
m
of
cam 500 mm
In suctIon
heIght
llO l30 mm
In
mercury
column
More
than
400 mm m
mercury
column
80 cu cm
at
20 strokes
The fuel
pump
whIch JS
of the
dIaphragm type
IS
mechamcally
dnven
by
the
eccentnc
pan
of the
camshaft of
the
engIne
It draws
gasolme
from
the
tank and
delIvers It
under
pressure
to
the carbure
tor
Even when
the
engIne
IS not
runmng
fuel can
be
delIvered under
pressure
by
moVIng
the
hand
pnmer up
and
down
By
the rotatIon
of camshaft rocker arm IS
pushed
and
pull
rod
of
dIaphragm
IS
pulled
down
At
the same ome
dIaphragm
goes
down
agamst dJaphragm spnng
and then IS
pushed
up
agam
by
ItS
spnng
By
the
movements
of the
dIaphragm
and
functIonIng
of
the
valves
at
the mlet
and outlet of
the
pump
chamber
gasolIne
IS drawn
up
from the tank to the carbu
retor
If
the
float
chamber
of the carburetor
contams
enough gasolme
and
the
needle
valve IS closed
gasolme
IS not allowed Into
the carburetor
Thus
gasolme
IS stored In the
pump
chamber and due
to ItS
pressure
the
dIaphragm
IS
kept
down and
cannot return
Under
thIS COndItIOn the
rocker
arm works In
vaIn as the rod remaInS low
The rocker
drm
spnng
serves to
prevent
nOIse
keepmg
the rocker arm
pushed agamst
the eccentric of
the camshaft
61

Datsun BLUEBlRD P 410 Series Specifications

General

Brand	Datsun
Model	BLUEBlRD P 410 Series
Category	Automobile
Language	English