1-S10
GL6000, GL7000, GL9000, GL11000, WSM
ENGINE
3. TIGHTENING TORQUES
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 the proper torque.
[1] TIGHTENING TORQUES FOR SPECIAL USE SCREWS, BOLT AND
NUTS
• For “*” marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before
tightening.
• The letter “M” in Size x 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.
W1013236
Item Size x Pitch N·m kgf·m lbf·ft
Cylinder head cover screw M6 x 1 6.86 to 11.3 0.7 to 1.15 5.1 to 8.3
Injection pipe retaining nut M12 x 1.5 24.5 to 34.3 2.5 to 3.5 18.1 to 25.3
Overflow pipe retaining nut M12 x 1.5 19.6 to 24.5 2.0 to 2.5 14.5 to 18.1
Nozzle holder assembly M20 x 1.5 49.0 to 68.6 5.0 to 7.0 36.2 to 50.6
Glow plug M8 x 1 7.85 to 14.7 0.8 to 1.5 5.8 to 10.8
*Rocker arm bracket screw M6 x 1 9.8 to 11.3 1.00 to 1.15 7.2 to 8.3
*Cylinder head screw M8 x 1.25 37.3 to 42.2 3.8 to 4.3 27.5 to 31.1
*Fan drive pulley screw M12 x 1.5 98.1 to 107.9 10.0 to 11.0 72.3 to 79.6
*Idle gear shaft mounting screw M6 x 1 9.8 to 11.3 1.00 to 1.15 7.2 to 8.3
*Connecting rod screw M7 x 0.75 26.5 to 30.4 2.7 to 3.1 19.5 to 22.4
*Flywheel screw M10 x 1.25 53.9 to 58.8 5.5 to 6.0 39.8 to 43.4
Bearing case cover mounting screw M6 x 1 9.8 to 11.3 1.00 to 1.15 7.2 to 8.3
*Main bearing case screw 2 M7 x 1 26.5 to 30.4 2.7 to 3.1 19.5 to 22.4
*Main bearing case screw 1 M6 x 1 12.7 to 15.7 1.3 to 1.6 9.4 to 11.6
Nozzle holder – 34.3 to 39.2 3.5 to 4.0 25.3 to 28.9
Oil pressure switch PT 1/8 14.7 to 19.6 1.5 to 2.0 10.8 to 14.5
Starter’s terminal B mounting nut
(Electromagnetic drive type)
M8 7.8 to 9.8 0.8 to 1.0 5.8 to 7.2
Starter’s terminal B mounting nut
(Planetary gear reduction type)
M8 5.9 to 11.8 0.6 to 1.2 4.3 to 8.7
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