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Cummins 6CT engine specs

 
 

 
 
 


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Cummins 6CTengine specs:

Barrington Diesel Club - LogoCummins 6CTA Engine Specs, at sea level.
Image of a Cummins 6CTA engine
Description Continuous Power Rating (CPL 2833)
RPM 800 1000 1200 1400 1600 1800
Horse Power SAE 76 136 201 230 248 255
Power Kw 57 101 150 172 185 190
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Torque Ft lbs 499 713 880 863 813 745
Torque Nm 677 967 1193 1170 1102 1010
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Fuel consumption Marine - Propeller output
Prop - liters per hour 5.6 9.8 15.9 23.7 34.4 50.9
Prop Curve - US gallons per hour 1.5 2.6 4.2 6.3 9.1 13.4
RATED Full load - fuel consumption Crankshaft output
RATED - Fuel Consumption liters per hour 17.0 31.0 36.0 41.0 45.0 50.9
RATED - Fuel Consumption US gallons per hour 4.5 8.2 9.5 10.8 11.9 13.4
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Barrington Diesel Club - Logo6CTA Physical Characteristics
Weight - Engine only 1570 lbs 712 kg
Weight - Engine with heat exchanger 1690 lbs 767 kg
Length 45" 1140 mm
Width 33" 849 mm
Height 37" 954 mm
Compression Ratio 16.8:1
Displacement 504 cu Inches 8.3 liter
Bore 4.49 inches 114 mm
Stroke 5.32 inches 135.00 mm

Barrington Diesel Club - LogoCummins 6CT, 6CTA Valve Settings
Set Inches mm
Valves Inlet (cold) 0.012 0.30
Valves Exhaust (cold) 0.024 0.61

Barrington Diesel Club - LogoSelected Torque specifications Cummins 6CT, 6CTA Engine
Torques (Non standard) Bolt Size Ft Lbs Nm
* Mains Step 1 M14-2.00 x 128mm 37 50
* Mains Step 2 M14-2.00 x 128mm 70 95
* Mains Step 3 M14-2.00 x 128mm Plus 60° Plus 60°
* Con Rod bolts, Step 1 . 30 40
* Con Rod bolts, Step 2 . 52 70
* Con Rod bolts, Step 3 . Plus 60° Plus 60°
* Cylinder Head (Short Bolts) Step 1 M14-2.00 x 70mm 27 40
* Cylinder Head (Short Bolts) Step 2 M14-2.00 x 70mm 52 70
* Cylinder Head (Short Bolts) Step 3 M14-2.00 x 70mm Plus 90° Plus 90°
* Cylinder Head (Long Bolts) Step 1 M14-2.00 x 150mm 27 40
* Cylinder Head (Long Bolts) Step 2 M14-2.00 x 150mm 104 142
* Cylinder Head (Long Bolts) Step 3 M14-2.00 x 150mm Plus 90° Plus 90°
Torques (Non standard) Bolt Size Ft Lbs Nm
* Lubricate with 'International Compound No 2, or Copper-Slip' or equivalent.

Barrington Diesel Club - LogoSelected Sizes Cummins 6CT, 6CTA Engine
Data for Serial Number 4487830 and Up
Component Item Min inches Max inches Limits inches Min mm Max mm Limits mm
Block Main Bearing Bore 4.1333 4.1344 . 104.987 105.013 .
Block Camshaft Bore 2.5192 2.5202 . 63.987 64.013 .
Block Cylinder Sleeve Bore 5.1535 5.1555 . 130.900 130.950 .
Block Cylinder Sleeve Counterbore 5.1550 5.1558 . 130.938 130.958 .
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Cylinder Sleeve OD of Sleeve at top of piston 5.1554 5.1555 . 130.947 130.949 .
Cylinder Sleeve ID of Sleeve 4.4882 4.4898 4.6109 114.000 114.040 117.117
Cylinder Sleeve Protrusion above block 0.0005 0.0043 . 0.013 0.109 .
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Piston Ring Gap No1 Compression 0.016 0.028 . 0.40 0.70 .
Piston Ring Gap No2 Compression 0.016 0.028 . 0.40 0.70 .
Piston Ring Gap No3 Oil Control (two piece) 0.012 0.024 . 0.30 0.60 .
Component Item Min inches Max inches Limits inches Min mm Max mm Limits mm
Cylinder Head Thickness 4.5571 . . 115.75 . .
Cylinder Head Material Removal . 0.0394 . . 1.00 .
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Con Rod Small end Bush ID (reamed) 1.7726 1.7730 . 45.023 45.035 .
Con Rod Big End ID 3.1885 3.1895 . 80.987 81.013 .
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Crankshaft End Float (Clearance) 0.006 0.013 0.015 0.157 0.334 0.381
Crankshaft Con Rod Journal OD Std 2.9916 2.9926 2.9906 75.987 76.013 75.962
Crankshaft Main Bearing Journal OD Std 3.8578 3.8588 3.8568 97.987 98.013 97.962
Component Item Min inches Max inches Limits inches Min mm Max mm Limits mm