Kubota SM-E4B Series User Manual

ENGINE
SM-E4B SERIES, WSM
1-S13
[2] TIGHTENING TORQUES FOR SPECIAL USE SCREWS, BOLTS
AND NUTS
NOTE
• For "*" marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before
tightening.
• The letter "M" in Size × Pitch means that the screw, bolt or nut dimension stands for metric. The size is
the nominal outside diameter in mm of the threads. The pitch is the nominal distance in mm between two
threads.
9Y1210785ENS0005US0
Item
Dimension ×
Pitch
N·m kgf·m lbf·ft
*Cylinder head cover screw M6 × 1 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
Injection pipe retaining nut M12 × 1.5 25 to 34 2.5 to 3.5 18 to 25
Overflow pipe retaining nut M12 × 1.5 20 to 24 2.0 to 2.5 15 to 18
Nozzle holder assembly M20 × 1.5 49 to 68 5.0 to 7.0 37 to 50
Glow plug M8 × 1 7.9 to 14 0.80 to 1.5 5.8 to 10
*Rocker arm bracket nut M6 × 1 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
*Cylinder head screw M8 × 1.25 38 to 42 3.8 to 4.3 28 to 31
*Fan drive pulley screw M12 × 1.5 118 to 127 12.0 to 13.0 86.8 to 94.0
*Idle gear shaft mounting screw M6 × 1 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
Oil pump mounting screw M8 × 1.25 17.7 to 21.5 1.80 to 2.20 13.1 to 15.9
*Connecting rod screw M7 × 0.75 27 to 30 2.7 to 3.1 20 to 22
*Flywheel screw M10 × 1.25 54 to 58 5.5 to 6.0 40 to 43
Bearing case cover mounting screw M6 × 1 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
*Main bearing case screw 2 M7 × 1 27 to 30 2.7 to 3.1 20 to 22
*Main bearing case screw 1 M6 × 1 13 to 15 1.3 to 1.6 9.4 to 11
Oil pressure switch PT 1/8 15 to 19 1.5 to 2.0 11 to 14
Nozzle holder – 35 to 39 3.5 to 4.0 26 to 28
Starter's terminal B mounting nut
(Electromagnetic drive type)
M8 7.9 to 9.8 0.80 to 1.0 5.8 to 7.2
Starter's terminal B mounting nut
(Planetary gear reduction type)
M8 5.9 to 11 0.60 to 1.2 4.4 to 8.6
Dynamo's pulley nut M10 × 1.25 40 to 44 4.0 to 4.5 29 to 32
Alternator's pulley nut – 58.4 to 78.9 5.95 to 8.05 43.1 to 58.2
Drain plug with copper gasket M12 × 1.25 33 to 37 3.3 to 3.8 24 to 27
Drain plug with copper gasket M22 × 1.5 64 to 73 6.5 to 7.5 47 to 54
Drain plug with rubber coated gasket M22 × 1.5 45 to 53 4.5 to 5.5 33 to 39
KiSC issued 01, 2013 A

Kubota SM-E4B Series Specifications

General

Brand	Kubota
Model	SM-E4B Series
Category	Engine
Language	English