CAT C11 Specs, bolt torques and manuals

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Your Diesel Engine Specs

Basic specs are open to everyone and include images, displacement, dimensions and weight, essential bolt tightening torques, the characteristics of the engine like its power and torque.
Essential bolt tightening torques are the main bearing cap bolt torque, the connecting rod cap bolt torque and the cylinder head bolt torques.


Some Popular Engine Specs


Cat C11 bolt torques, manuals, engine specs

Caterpillar C11 essential bolt torques

Caution: Bolt Torques and other data, may vary from serial number to serial number, please check the manuals.

Main Bearing bolts
S/N - JAM1-UP
S/N - KCA1359-UP
S/N - KCB6818-UP
step 1 = 150 ± 7 Nm, 110 ± 5 lb.ft
step 2 = + 60°

S/N - KCA1-1358
S/N - KCB1-6817
step 1 = 50 ± 5 Nm, 110 ± 4 lb.ft
step 2 = + 60°

Connecting Rod Bolts
step 1 = 130 ± 7 Nm, 95 ± 5 lb.ft
step 2 = + 60°


cat c11 cylinder head and numbered bolts
Main Cylinder head Bolts
(bolts 1 through bolt 26 in a numerical sequence)
step 1 = 170 Nm, 125 lb.ft
step 2 = repeat step 1
step 3 = + 120°
step 4 = loosen all
step 5 = 170 ± 10 Nm, 125 ± 7 lb.ft
step 6 = repeat step 5
step 7 = + 120° ± 5°

Minor Cylinder head Bolts
(bolts 27 through bolt 34 in a numerical sequence)
step 8 = 55 Nm, 41 lb.ft

Caterpillar C11 spec sheets

Manuals common to Caterpillar C11 and C13 engines

Caterpillar C11 y C13 manuales del motor


Caterpillar C11 engine specs

CATERPILLAR c11
Displacement
11.1 liter, 677 CID
Bore - 5.12 in, 130 mm	 
Stroke - 5.51 in, 140 mm
Arrangement
6 cylinder in-line turbo, 
 
Power 
Acert
305-370 hp
227-275 kW 
@ 2100 rpm

Torque 
1050-1450 lb.ft 
1400-1930 Nm
@ 1200 rpm

Dimensions:
approx:
length 1297 mm, 51 in
width 1050 mm, 48 in
height 1217 mm, 49 in

Weight:
approx:
1030 kg 
2270 lb

Compression ratio:
mostly at 17:1



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email: steve@barringtondieselclub.co.za
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