S.G
GENERAL
68
mm
STROKE
SERIES
WSM,
01 169
Standard Screw and Bolt
SGOOF004
OB
N-m kgf-m
ft-lbs
M6 7.9t09.3 0.80t00.95 5.8t06.9
M8
17.7t020.6 1.8t02.1 13.0t015.2
M10 39.2t045.1 4.0t04.6 28.9t033.3
M12 62.8t072.6 6.4t07.4 46.3t053.5
[3]
TIGHTENING
TORQUES
Special Screw and Bolt
Q
N-m
kgf-m
ft-l
bs
9.8t011.3 l.00to 1.15 7.23t08.32
23.5t027.5 2.4t02.8 17.4to20.3
48.1 to55.9 4.9t05.7 35.4t041.2
77.5t090.2 7.9t09.2 57.1 to66.5
Screws, bolts and nuts must be tightened to the specified torque using
a
torque wrench, Several screws,
bolts and nuts such as those used on the cylinder head must be tightened in proper sequence and
at
the
proper torque.
(1)
Tightening torques for special use screws, bolts and nuts
In removing and applying the bolts and nuts marked with
”*”,
pneumatic wrench or similar pneumatic
For
”*”
marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before
NOTE
tool,
if
employed, must be used with enough care not to get them seized.
Punched Number
tightening.
Item
Screw and
Bolt
Material Grade
Head cover cap nuts
Head bolts
Bearing case bolts 1
Bearing case
bolts
2
Flywheel bolts
Connecting rod bolts
Rocker arm bracket nuts
Idle gear shaft bolts
Nozzle holder assembly
Oil switch taper screw
Injection pipe retaining nuts
Starter‘s terminal
B
mounting nut
Glow plugs
None
or
4
7
Size
x
Pitch
Standard Screw and
Bolt
SS41,
SZOC
Special Screw and Bolt
S43C, S48C
(Refined)
M6x 1.0
M8
x
1.25
M6x 1.0
M7x 1.0
MlOx 1.25
M7
x
0.75
M6x 1.0
M6x 1.0
M8x 1.0
M20
x
1.5
PT
118
M12x
1.5
M8
Nm
3.9
to
5.9
39.2 to 44.1
12.7 to 15.7
26.5
to
30.4
53.9 to 58.8
26.5 to 30.4
9.81 to 11.28
9.81 to 11-28
7.8
to
14.7
49.0
to
68.6
14.7 to 19.6
24.5
to
34.3
8.8
to
11.8
kgf-m
0.4
to
0.6
4.0
to
4.5
1.3 to 1.6
2.7 to 3.1
5.5 to 6.0
2.7 to 3.1
l.00to 1.15
l.00to 1.15
0.8 to 1.5
5.0 to 7.0
1.5 to 2.0
2.5 to 3.5
0.9
to 1.2
ft-I
bs
2.9 to 4.3
28.9 to 32.5
9.4 to
1
1.6
19.5 to 22.4
39.8 to 43.4
19.5 to 22.4
7.23 to 8.32
7.23 to 8.32
5.8 to 10.8
36.2 to 50.6
10.8 to 14.5
18.1 to 25.3
6.5 to 8.7
5-5
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