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Cummins KTA38 and KTA50 engine specifications and bolt torques - amp

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Cummins KTA38 and KTA50 Essential Diesel Engine Bolt Tightening Torques

 

Cummins KTA38 and KTA50 Main Bearing Bolts

Main bearing capscrews
step 1 = 265 Nm, 195 lb.ft
step 2 = 605 Nm, 445 lb.ft
step 3 = loosen
step 4 = 265 Nm, 195 lb.ft
step 5 = 605 Nm, 445 lb.ft

Main bearing mounting capscrews
step 1 = 176 Nm, 130 lb.ft
step 2 = 339 Nm, 250 lb.ft
step 3 = loosen
step 4 = 339 Nm, 250 lb.ft
step 5 = + 90 degrees

 

Cummins KTA38 and KTA50 Connecting Rod Bolts

(Manual Vol 3)
step 1 = 108 Nm, 80 lb.ft
step 2 = 217 Nm, 160 lb.ft
step 3 = 325 Nm, 240 lb.ft
step 4 = loosen
step 5 = 108 Nm, 80 lb.ft
step 6 = 217 Nm, 160 lb.ft
step 7 = 325 Nm, 240 lb.ft
step 8 = 365 Nm, 270 lb.ft

 

Cummins KTA38 and KTA50 Cylinder Head Bolts

step 1 50 lb.ft, 65 Nm
step 2 150 lb.ft, 200 Nm
step 3 250 lb.ft, 340 Nm
step 4 360 lb.ft, 490 Nm
step 5 410 lb.ft, 555 Nm

Silver bolts
step 1 50 lb.ft, 65 Nm
step 2 120 lb.ft, 160 Nm
step 3 185 lb.ft, 250 Nm
step 4 255 lb.ft, 345 Nm

 

Cummins KTA38 Diesel Engine Specs

 

Cummins KTA38
Generator engine:
configuration, displacement, bore, stroke,


Configuration
v-12 cylinder
turbo, intercooled

Displacement
38 liter

Bore and Stroke
called a square engine with
bore and stroke = 159 mm, 6.25 inches

 

Cummins KTA38
Generator engine:
power, compression ratio


Power
Engine Power = 900-1200 kWm
Engine Output = 750-1050 kVA
@ 1500 rpm

Compression Ratio
Typical 47

 


Cummins KTA50 Diesel Engine Specs

 

Cummins KTA50 - G8
Generator engine:
configuration, displacement, bore, stroke,


Configuration
v-16 cylinder
turbo, intercooled

Displacement
50 liter

Bore and Stroke
called a square engine with
bore and stroke = 159 mm, 6.25 inches

 

Cummins KTA50 - G8
Generator engine:
power, compression ratio


Power
Engine Power = 1200-1600 kWm
Engine Output = 1000-1400 kVA
@ 1500 rpm

Compression Ratio
14.9:1

 



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Essential bolt torques are:
main bearing cap bolts, connecting rod cap bolts, cylinder head bolts.


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