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Case W9 - Intake Valve Specifications; Checking Compression Pressure

Case W9
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22-2
SPECIFICATIONS
(Continued)
INT AKE VAL VE
Tappet
clearance
(COLD and HOT)
Face
a
ngle
.
..
....
.
Face
run-out
. . . . . .
Length
(267B and 401B).
Length
(301B) . . . . . .
Length
(336BD and 336BDT) .
O.D.
of
stem
.
........
.
O.D.
of
head
(267B
and
401B)
O.D.
of
head
(301B) .
...
.
..
.
O.D.
of
head
(336BD
and
336BDT)
Seat
angle
...
.
...
.
Seat
contact
width
. . . . .
Seat
run-out
. . . . . . . .
Insert
height
(336BDT)
..
0 .D. of
insert
(336BDT)
I.D.
of
insert
(336BDT) .
VALVE SPRING
Free
length
.
..
..
. .
Total
coils
. . . . . . .
Wire
diameter
. . . . . . . .
....
Compressed
to
1-
31/64"
(Valve open) .
Compressed
to
1-15/16"
(Valve
closed)
.
ROCKER ARM ASSEMBLY
O.D.
of
shaft
..........
..
.
I.D.
of
arm
bore
. . . . . . . . . . .
Shaft
assembly
end
play
(both
ends)
Shaft
spring:
Total
coils
(working
coils)
Wire
diameter
. . . . .
Compressed
to
1-9/16"
Lubrication
.
Shaft
oil
holes
. . . . . .
Maximum
Limit
Including
Wear
.015"
45°
•.•
. . . .
.....
.
6.2845"
to
6.2695"
6.4415
to
6.4205"
6.4405"
to
6.4195"
.402"
to
.403"
1.685"
to
1.675"
1.755"
to
1.745
"
2.005"
to
1.995"
44°
.0075"
to
.0975"
.2775"
to
.2825"
2.0990"
to
2.1000"
1.
805"
to
1.
815"
2 .28"
7.75
.1695"
130
to
140
lbs
.
41
to
45
lbs.
.
872"
to
.873"
.
8745"
to
.8755"
.010"
to
.030"
4
.080"
8.5
to
10
lbs.
.002"
.002"
.002"
Engine
oil,
camshaft
metering
Toward
valve
side
of
engine
.
Shaft
cannot
be
rotated
.
SPECIAL
TORQUES
Cylinder
head
bolts
.
....
.
Intake
and
exhaust
manifold
stud
nut
Cylinder
head
valve
cover
stud
nut
Rocker
arm
bracket
stud
nut.
. . . .
200
to 210
ft.
lbs.
25
to 30 ft.
lbs.
60
to
70
in
.
lbs
.
40 to 45 ft.
lbs.
CHECKING
COMPRESSION
PRESSURE
1.
Clean
the
engine
thoroughly,
preferably
by
steam
cleaning.
2.
Before
cranking
the
engine,
make
sure
all
operating
controls
are
in
neutral,
brakes
are
set
and
the
wheels
are
securely
blocked.
.
3.
There
are
two
methods
of
checking
com-
pression pressure - the cranking method
and
the
engine
running
method.
NOTE
The
engine
must
be
at
operating
temperature
for
either
method
used
.
A. CRANKING METHOD -
Close
the
needle
valve
at
the
fuel
tank.
Disconnect
all
high
pressure
fuel
lines
and
leak-off
lines
bet-
ween
injectors.
Remove
all
of
the
inj
ec-
tors.
Refer
to
the
chart
on
Page
3.

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