Yanmar EF-494T User Manual

3 ENGINE 3 ENGINE
EF494T TM 06/2011 edition
117
3.5.18 Tightening torque tables
Main bolts and nuts
Bolt/nut
Thread size x pitch
(mm)
Tightening
torque
N•m (kgf•m )
Application of
lubricating oil
(to threads/seat)
Remarks
Cylinder head bolt
M10× 1.25
85.3 to 91.1
(8.7 to 9.3)
Yes
―
Connecting rod bolt
M9× 1.25
44.1 to 49.0
(4.5 to 5.0)
Yes
Flywheel mounting bolt
M10× 1.25
83.3 to 88.2
(8.5 to 9.0)
Yes
Bearing cap mounting bolt
M12× 1.5
93.2 to 98.1
(9.5 to 10.5)
Yes
―
Crankshaft pulley mounting
bolt
M14× 1.5
112.7 to 122.7
(11.5 to 12.5)
Yes
Fuel valve retainer mounting
bolt
M8× 1.25
24.4 to 28.4
(2.5 to 2.9)
No
Fuel pump drive gear
mounting bolt
M14× 1.5
78 to 88
(8 to 9)
No
―
High-pressure fuel line
tightening nut
M12× 1.5
29.4 to 34.3
(3.0 to 3.5)
No
Bolts and nuts for general use (lubricating oil not applied)
No.
Item
Thread size x pitch
(mm)
Tightening torque
N•m (kgf•m )
Remarks
1
Hexagon head bolt
(7T) and nut
M6× 1
9.8 to 11.8 (1.0 to 1.2)
If these kinds
of bolts and
nuts are
tightened for
any aluminum
part, use 80%
of the torque
values
indicated here.
For 4T bolts
and lock nuts,
use 60% of the
torque values
indicated here.
M8× 1.25
22.6 to 28.4 (2.3 to 2.9)
M10× 1.5
44.1 to 53.9 (4.5 to 5.5)
M12× 1.75
78.4 to 98.0 (8.0 to 10)
M14× 1.5
127.5 to 147.1 (13 to 15)
M14× 1.5
215.7 to 235.4 (22 to 24)
2
PT plug
1/8
9.8 (1.0)
―
1/4
19.6 (2.0)
3/8
29.4 (3.0)
1/2
58.8 (6.0)
3
Pipe fitting bolt
M8
12.7 to 16.7 (1.3 to 1.7)
―
M10
19.6 to 25.4 (2.0 to 2.6)
M12
24.5 to 34.3 (2.5 to 3.5)
M14
39.2 to 49.0 (4.0 to 5.0)
M16
49.0 to 58.8 (5.0 to 6.0)

Yanmar EF-494T Specifications

General

Brand	Yanmar
Model	EF-494T
Category	Tractor
Language	English