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Komatsu 6D102 Essential Diesel Engine Bolt Tightening Torques

 

Komatsu 6D102 Main Bearing Bolt torque
  6D102E-1 Between Engine
Nos: 26200929 - 26222207

S6D102E-1 Between Engine
Nos: 26200467 - 26228573

Step1 = 60 Nm
Step2 = 90 Nm
Step3 = 178 Nm

Komatsu 6D102 Main Bearing Bolt torque
  From 6D102E-1
Engine No: 26222208 up

From S6D102E-1
Engine No: 26228574 up
From SAA6D102E-2 up
Step1 = 60 Nm
Step2 = 90 Nm
Step3 = +90 degrees

Komatsu 6D102 Connecting Rod Bolts and Cylinder Head Bolts
  Connecting Rod Bolts
Step1 = 30 Nm
Step2 = 60 Nm
Step3 = Tighten 60

Cylinder Head Bolts
Step1 = tighten all 90 Nm
Step2 = check all
Step3 = six long bolts only to 120 Nm
Step4 = tighten all bolts further 90 degrees
Step5 = check all bolts at 136 Nm
(if bolt(s) found loose at 136 Nm redo those only from step1)

Komatsu 4D102 Diesel Engine Specs

 

Komatsu 102 series Displacement, bore and stroke
 
Displacement
6D-102 - 5.9 liter, 359 CID

Bore
4.02", 102 mm

Stroke
4.72", 120 mm

Komatsu 6D102 Arrangement
 
6 cylinder in line turbo engine

Komatsu 6D102 Power
  134-157 kW, 180-210 hp
@ 2500 rpm

Komatsu 6D102 Torque
 
310-330 lb.ft, 420-450 Nm
@ 1500 rpm

Komatsu 6D102 Dimensions
 
approx
length = 1067 mm, 42 in
width = 711 mm, 28 in
height = 894 mm, 35 in

Komatsu 6D102 Weight
 
approx
466 Kg, 1025 lb



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