Kubota WSM 05-E4B Series User Manual

3. Tightening torques
Refer to the following table if the tightening torques of screws, bolts and nuts are not specified in each part.
3.1 Tightening torques of screws, bolts and nuts for general use
If the tightening torque is not specified, refer to the table below for the none specified torques values.
Indication on top
of bolt
No-grade or 4T 7T
Indication on top
of nut
No-grade or 4T
Unit N⋅m kgf⋅m lbf⋅ft N⋅m kgf⋅m lbf⋅ft
M6 7.8 to 9.3 0.80 to 0.94 5.8 to 6.8 9.80 to 11.3 1.00 to 1.15 7.23 to 8.33
M8 17.7 to 20.6 1.81 to 2.10 13.1 to 15.1 23.5 to 27.5 2.40 to 2.80 17.4 to 20.2
M10 39.2 to 45.1 4.00 to 4.59 29.0 to 33.2 49.0 to 55.9 5.00 to 5.70 36.2 to 41.2
M12 62.8 to 72.6 6.41 to 7.40 46.4 to 53.5 77.5 to 90.2 7.91 to 9.19 57.2 to 66.5
3.2 Tightening torques of screws, bolts and nuts for special use
NOTE
• For the screws,
bolts and nuts with the mark "*", apply engine oil to their threads and seats before you
tighten.
• The alphabet "M" in Dimension × Pitch shows that the screw, bolt or nut dimensions are in the metric
system. The dimension is the nominal external diameter in mm of the threads. The pitch is the nominal
distance in mm between 2 threads.
Disassembling and assembling
Item
Dimension
× Pitch
N⋅m kgf⋅m lbf⋅ft
Cylinder head cover screw
[D1005-E4B/E4BG, D1105-E4B/E4BG, V1505-E4B/
E4BG]
M7 × 1.0 7 to 8
0.7 to 0.9 5 to 6
Cylinder head cover screw
[D1305-E4B/E4BG]
M6 × 1.0 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
*Cylinder head mounting screw M10 × 1.25 64 to 68 6.5 to 7.0 47 to 50
*Main bearing case screw 1 M8 × 1.25 30 to 34 3.0 to 3.5 22 to 25
*Main bearing case screw 2 M9 × 1.25 49 to 53 5.0 to 5.5 37 to 39
*Flywheel screw M10 × 1.25 54 to 58 5.5 to 6.0 40 to 43
*Connecting rod screw M8 × 1.0 42 to 46 4.3 to 4.6 31 to 33
*Rocker arm bracket nut
[D1005-E4B/E4BG, D1105-E4B/E4BG, V1505-E4B/
E4BG]
M7 × 1.0 16.6 to 21.6 1.70 to 2.20 12.3 to 15.9
*Rocker arm bracket screw
[D1305-E4B/E4BG]
M7 × 1.0 16.6 to 21.6 1.70 to 2.20 12.3 to 15.9
(Continued)
4. ENGINE
SERVICING
3. Tightening torques
4-16
05-E4B SERIES,05-E4BG SERIES
KiSC issued 03, 2023 A

Kubota WSM 05-E4B Series Specifications

General

Brand	Kubota
Model	WSM 05-E4B Series
Category	Engine
Language	English