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CYLINDER HEADIV ALVE/CAMSHAFT
8-14
REFACING
NOTE
:
•
Follow the refaeer
manufacturer's operating
, - - - -
-- - - - - - - -
-- - - ,
instructions
.
•
Be
careful
not to grind the
seat
more than
neces-
sary.
CZV\
45
"
[d~
32"
6
\60"
If
the
contact
area
is
too
high
on the
valve,
the
seat
~=================~
must be
lowered using a 32°
flat
cutter.
CONTACT TOO HIG
H
If
the
contact area is
too Iowan the
valve,
the seal
~
~
m,"
b, "',,d
"'09
,
60"
'01"'0'
co"",
~
. .
32"
CONTACT TOO LOW
'T
..
~
60"
D
Using a 45°
seat cutter,
remove any roughness or
~=================~
irregularities
from the
seat.
TOOLS:
Valve
seat
cutter,
35
mm
(IN)
07780·0010400
Valve seat
cutter,
33 mm (EX
)
07780-0010800
Cutter
holder,
5.5
mm
01781·0010101
or
equivale
nt commercially
available
in
U.S.A.
ROUGHNESS
Using a
32°
flat cutter, remove
1/4
of the
existing
~==~~~~~~~~~~=====~
valve seat material.
TOOLS:
Flat
cutter,
36 mm (IN)
Flat
cutter,
33
mm
(EX)
Cutter
holder,
5.5 mm
07780·0013500
07780·0012900
07781·0010101
o
r
equivalent
commercially available in
U.S.A.
OLD SEAT WIDTH
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