t·conneC10t"(4 pes)
2.I"f~ion.
pipe
3-Flf;tU/n pipe
4-Ltak-o'i
pi
pe
5·
Nut
(6~)
Removing
In
jection
noz
zle
(4)
PIlt
the
wrench
to
the
retaining nut.
and
unscrew
the injection
no:u.!e
assembly to remove it from
the
.cy
linder head .
Take
off
the packin! rtmalning
I>chind
on tho s.ating face by plucking w,th a
~rewdri
ver
tip.
E::-:amille
t
he
removed
packing.
to
~ee
ifit
can
be
re
-used.
[NOTE)
Reverse
the
foregOing
sequence
or
removing
steps:
to
lndaU
the
injection nozzles,
making
sure to
ti
ghten the nozz.le
holde
r
in
~lac.e
by
torquing its nut
105
±O.s
kg-m
(36
.2
±J
.6 ft.lb).
After
romoV)ng
each
nozzle assembly, be
sure
to
plug
up
the hole with a wad
of
cloth to
avoid entry
of
dirt mto the cylinder.
Disassembly
(I)
Before disassembly. co
ll
ect
data
on the nozzle by
testing it f
or
injection pressure (beginning
of
injection), spray pattern
and
internal oil-tightness,
aU
in the manner already described. Throughout
the disassembly. cleaning and reassembly work,
han
dl
e
Cllcit
noule assembly with
care
to
PJ
otecl
,
in
particular,
the
nozzle tip.
(2) Clamp' retaining nut
(I)
between the
jaw,
of
a lise.
as
shown,
pur
tht
wrench
to
the
holder
and
loosen
it to
..
parate
it
from the
nut
(I).
(3)
Take
O
tll
of the removed holder
oI,es.
pans:
nozzle tip (3). di,tance piece (4). pressu
re
pin (5),
spring (6) an d washer (7).
Wash
the <u"",mbled
parIS
cle
an
wjth clea"
kerosine
or
die"]
f
ue
l oil. and dry
Uoem
witl,
compressed
air.
Using
iI wooden
scraper,
remove
carbon
:
after
decarboning,
wash
the
de
carboned
pans
with
a
more
powerful cleaning
fluid
such
as
gasobne.
DISASSEMBLY
AND
REASSEMBLY
Removing
nO
llle
holder
-
®--®
h
~
~~
~
~
'·Rot
Bini
ng
nOI
2·N
oule
holder
3-Nozzlr
tip
4·0istsnc8
pi
ce(\'
5-PreS5ure pin
6-$pring
7-Wss
her
8-Nu
(
9·Ga,ket
I
njecti
on
nozzle assembly - Exploded view
Reassembly
The
reassembling
,tep'
are
the
same
as
the
dis3'<embllng
steps except t
Mot
the
sequence
is
r
eversed,
a
nd
that
the
job
of
fitting
a
pm
to
anoLhe
r must
b-e
carried
out in a
pool
of
clc:m
kerosine
.
If the need I,
valve
and
nou
le proper h,\'e
tobe
re
placed,
be
sure
to
wash
the
rep
lac
ement
parts
in
the
pool
of
ke~osjne
a
ft
er removing their protcttive
fi
lm
of plast
ic
:
wash
off
the
rust·preventi,·e oil
from
the
nozzle
prope
r
by stroking the needle
valve
bock and forth in the
ne
edle
v31vc
stem
bore
.
105
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