Komatsu 12v140 specifications and manuals

Diesel Engine manuals and specifications at Barrington Diesel Club

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Workshop manual, specs and bolt torques for Komatsu 12v140 engines

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Komatsu 12v40 engine - Diesel engine workshop and repair Manuals, spec sheet

Komatsu 12v140 engine workshop manual, 469 pages - click to download

Komatsu 12v140 engine service training, 176 pages - click to download

Komatsu 12v140 engine spec sheet, 2 pages - click to download

Komatsu 12v140 Diesel Engine Bolt Tightening Torques

Komatsu 12v140 Main Bearing Bolt torque

Step1 = 290 Nm
Step2 = 570 Nm
Step3 = +90 degrees

Komatsu 12v140 Connecting Rod Bolt torque

Step1 = 70 Nm
Step2 = recheck 70 Nm
Step3 = + 90 degrees

Komatsu 12v140 Cylinder Head Bolt torque

for bolts 1-6:
Step1 = 150 Nm
Step2 = 220 Nm
Step3 = + 90 degrees

bolt No. 7:
Step1 = 70 Nm

Komatsu 12v140 cylinder head torquing sequence, click to expand

Komatsu 12v40 Diesel Engine Specs

Komatsu 12v140 Arrangement, displacement, bore and stroke

Arrangement
12v engine,
turbocharged

Displacement
30.5 liter

Bore
140.0 mm

Stroke
165.0 mm

Komatsu 12v140 Power and torque

Power
574-603 kW @ 2000 rpm

Torque
3350-3730 Nm @ 1400 rpm

Komatsu 12v140 Dimensions and weight

Dimensions
approx dimensions
varies according to machine:

length = 1715-2000 mm
width = 1450-1515 mm
height = 1592 mm

Weight
approx
3200 kg