M.5
FUEL
SYSTEM
92.4mm STROKE
SERIES
WSM,
0109A
[3]
INJECTION
NOZZLE
I
C140F002
[4]
FUEL FILTER
I0075F020
Used
as
the
injection nozzle, the small-sized
NIPPONDENSO-made
OPD
mini nozzle
is
of a flat-cut-
provided double throttle type.
This
type of nozzle
is
designed to control the injection quantity when
the
lift
rate
is
low
at
start
of the injection, and to cut
down on the knocking sound caused by excessive
fuel injection by giving the needle valve section more
taper than before to prevent the rapid increase in
the injection quantity when the initial injection turns
into the full-force injection.
Also,
employed to prevent
the
injection quantity
loss
in
the
throttle section caused by carbon, the flat
cut provided
at
the needle valve
section
helps the
throttle withstand long use and reduce
as
much
knocking sound as when
it
was new.
The heat seal
is
employed to improve
the
durability and reliability of the nozzle.
(I)
Bar Filter (6) Retaining Nut
(2) Nozzle Holder Body
(7)
Nozzle Body
(3)
Adjusting Washer
(8)
Needle Valve
(4)
Nozzle Spring (9) HeatSeal
(5)
PushRod
(IO)
Packing
A
fuel filter
is
used to prevent dirty fuel from
reaching
the
injection pump and injection nozzles.
The
filter
cartridge will require occasional
replacement to maintain an adequate flow of fuel to
the injection pump.
The
frequency of
this
service will
vary according to the cleanliness of available fuel and
the care used
in
storage.
The fuel filter eliminates
the
foreign matter which
is
fed from the fuel tank and protects injection pump
and injection nozzles. When fuel enters the filter,
it
passes from the
filter
element’s circumference
foward
the
center for filtering.
(1)
Air vent plug (A) Inlet
(2) Fuel filter cartridge (B) Outlet
M-27
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