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J,21 I
NGINE
VALVE SEAT
WIDTH
•
CoAt
thf!
VAive
seat uniformly
w
ith
Prussian
b
lue.
Fit
tha
v.ilvu
am.I
lil~
lhe
COOtcd
$Cttl wilh
(he
val\•C
foe~
ir1
,'I
r
o lllting
mAnne
r.
in
order
to
o
btain
a
clear
impressio
n
of
the
se.:it
i119
COlllaCl. In
IIHS
QPOfatio
u,
l
l
$(:
l
h(:
\•alve
IAl)f)er
t
o
h
old
the
\•a lve head.
•
The
ring-like dye
imprnssion luft
on
1hv
volvo
foco
IH\•Sl
be
c ontinuo
us-without
;1ny
b
reak.
In
addition,
the
width
of the
dye riug
.
w
hich
1$
thU viS1JOlit1Jd SC~l
..
w
i(lth".
ft)USI
be
w ithin
the following
s
pecification:
S
u
mdard
Valve seat
width
-
~
i;-:
0.9 - 1.1 mm
10.035
- 0 .043 inl
If
f!ither
requirement
is
not m
et, correc
t
t he sea
t by
servidng
it
a~
follows:
VALVE SEAT SERVICING
ThP.
v alv~ sf!a ts
for
b oth inrnke
and exhaust
v.alves .Jrc
11)fJCl)i11od
to two
d
Ukiro
nt
aogles.
The
seat c<u11act
s
1
.
1
rf,u:P.
is
c ut
11
5'
;md
the area
abo
ve the
contac
t
su,fac
e (closast
to
tho
com l>uslio11
c
lw111bct·
1
is
cul
to
15"
Intak
e side
Exhaust
side
45"
N•11
6
or
122
N•1
·16
or 122
1
5"
N-11
60,
12
1
N
1?.0or
121
(For
U.S.A.
model)
Vulve soat cutter
:
IN• 121
J.
(N-1
22}, (N- 1
16~ a11d
(N~
120
)
Solid
pih)l
(N-100-5.0)
(Fo
r
t he o ther
m
odel
s>
09916-20610:
Valve
Seut Cutter
IN-
12.1
J
09916,20620: Valve
S ea
t
Cutter {N,122)
09916-24420:
Vulva
Sttat Cutter
IN-116)
09916,29010:
Volvo Soot Cutter (N,120)
09916-243 11: Solid Pilot (N•100-5.0t
09916,21110:
Valvf)
S<tM Cutter
!' )
:et
NOTE:
The
v<1lve
$eftt
con
Met
Rre.
~ m
os
r
h
e
inspected
after
each
c
ut
.
•
Insert
the
solid p,lo
l
'T:·
w
ith a
Slight
r<)li)tiOr"I.
S eal
the
p ilo
t
snugly.
Install
the
45·
c
utter,
fl
ttilchmP.nt
and
T
handle.
•
Using
the 45' c
uuer,
<lasc;.to
on<I
clean
up
the
seat
with
o
ne
o
r
two
tums..
e
lmwact
the
SO<.H
by
lhC
ptcv iOl•Sly
(1£:scfil>erJ
se11
1
w irl
th
measureme
nt
p
roc edure. If
t he seat is
p
itted
o
r
1Ju1111Jd.
a<lditio11al
s<:at
cond
itioolno
wil
h
the
4
5
'
cuuer
is
re-quired
.
NOTE:
C"l
ooJv
the
minin>J/m amo11n1
aece.,.-;s.<11
·v
from
th
e
seat
lo
prevent
/
h
t!
p
os:.·iJJility uf IIUJ
v;)/vu
StQm bccomil,~1
too
close
to
thr. rocker
.'
m n
for
correct valve
comae/
iJn
g le.
Q
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