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Injector Nozzle
The fuel from the fuel injection pump
passes through the fuel passage in the
nozzle
holder
body
and
is
injected
through the nozzle into the combustion
chamber.
The excess fuel at the nozzle
flows
through
the
nozzle holder,
the
upper
nipple
and
the
return
line
and
returns to the fuel tank.
Disassembly of the Injector
(1)
Remove the return line from
the
injector
upper
attach-
ment.
(2)
Remove
the
fuel
injection
line from the injector.
(3)
Loosen the injector nut and
remove the assembly.
(4)
Disassemble
the
holder
assembly
following manner.
nozzle
in
the
(a)
With the retaining
nut
held
in
a
vice,
remove
the
nozzle holder
using a wrench on
the
nozzle holder
body.
When
holding the
retaining
nut
in
the
vice,
use
an
aluminum or copper
plate between the
nut and the vice.
(b)
Remove
the
shim,
pressure ring,
I
Hexagon nut
2 Packing ring
3
Washer
4
Body
5
Shim washer
6 Spring
flange, pressure pin and distance piece.
74
7 Pressure pin
8
Distance piece
9
Retaining nut
10 Nozzle
II
Flange
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