Yanmar 3JH3E - 5. Tightening torque; 5-1 Main Bolt and Nut; 5-2 Standard Bolts and Nuts(without lubricant)

Chapter 10 Disassembly and Reassembly
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5. Tightening torque
5-1 Main Bolt and Nut
::-------::I
No.
Name
3JH3(B)(C)E • 4JH3(B)(C)E
T
1
Head bolt
Coat with lube oil (Screw dia. X pitch)
9.0~9.6 (M1 OX 1.25)
2
Rod bolt
Coat with lube
oil (Screw dia. X pitch) 5.0~5.5 (M9X1 .0)
3
Flywheel retainer bolt
Coat with lube
oil (Screw dia. X pitch) 8.5~9.0 (M10X1 .25)
4
Metal cap retainer bolt
Coat with lube
oil (Screw dia. X pitch) 9.8~10.2 (M12X1.5)
5
Crank V-pulley fastening bolt
Coat with lube
oil (Screw dia. X pitch) 10.5~11.5 (M14X1.5)
6
Nozzle fastening nut
No lube
oil (Screw dia. X pitch)
0.7~0.9 (M6X1 .0)
7
Timer fastening nut
No lube
oil (Screw dia. X pitch)
6.0~7.0 (M12X1.75)
5-2 Standard Bolts and Nuts (without lubricant)
(kgf-m)
Name
Screw dia. X pitch
M6 X 1
Hexagon bolt
t
MB X 1.25
(7T) and nut
M10 X 1.5
M12 X 1.75
1/8
PT plug
1/4
3/8
1/2
MS
M12
Pipe joint bolt
M14
M16
Tightening torque
1.0~1.2
2.3~2.9
4.5~5.5
8.0~10.0
1.0
2.0
3.0
6.0
1.3~1.7
2.5~3.5
4.0~5.0
5.0~5.5
10-40
Remarks
1) When bolting the aluminum parts, tighten the
bolts with
BO% of the tightening torque specified
in the Table.
2) 4T bolt and lock nut should be tightened with 60%
of the torque shown in the table.
Printed in Japan
HINSHI-H8009