DIESEL
ENGINE
05
SERIES
WSM,
01640
[3]
INJECTION NOZZLE
This nozzle is throttle-type, The needle valve
(8)
is
pushed against the nozzle body
(7)
by the nozzle spring
via the push rod
(5). Fuel pressurized by the injection
pump pushes the needle valve up and then is injected
into the sub-combustion chamber.
Excessive flow passes from nozzle holder center
through the eye joint and the fuel overflow pipe to the
fuel tank.
The injection pressure is 13,73 to
14.71
MPa
(140
to
150
kgf/cm2,
1991
to
2133
psi), and is adjusted with
adjusting washers (3).
(1)
Bar Filter
(6)
Retaining Nut
(2)
Nozzle Holder Body
(7)
Nozzle Body
(3)
Adjusting Washer
(8)
Needle Valve
(4)
Nozzle Spring
(9)
Heat Seal
(5)
PushRod
(IO)
Gasket
1179OM10272
{4]
FUEL FILTER
(not
included
in
the
basic
model)
I
01
640F10120
Each moving part of the injection pump and nozzle
is
extremely precision machined, and clearances of their
sliding parts are extremely small. Fuel itself serves as
lubricating oil. For this reason,
it
is
extremely important
to completely remove water and dirt contained in fuel.
This fuel filter, which uses very fine filter paper,
serves to separate and filter dirt in fuel and water
accumulated in the tank.
Air vent plug is fitted to the cock body.
Before
starting or after disassembling and reassembling, loosen
this plug and bleed the air in the fuel system.
(1)
CockBody
(A)
Inlet
(2)
Filter Element
(B)
Outlet
(3)
Filter Cup
(4)
Retaining Ring
(5)
Fuel
Cock
0
164OM
10030
M-31
Redistribution or publication of this document,
by any means, is strictly prohibited.
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