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CATERPILLAR C13 Essential Diesel Engine Bolt Tightening Torques

 

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

CAT C13 Main Bearing Bolts
step 1 = 50 +- 5 Nm, 37 +- 3.7 lb.ft
step 2 = 90 degrees

CAT C13 Connecting Rod Bolts
step 1 = 130 +- 7 Nm, 95 +- 5 lb.ft
step 2 = + 60 degrees


CAT C13 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 degrees
step 4 = loosen all
step 5 = 170 +- 10 Nm, 125 +- 7 lb.ft
step 6 = repeat step 5
step 7 = + 120 degrees +- 5 degrees

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

CATERPILLAR C13 Acert Diesel Engine Specs

 

Displacement
12.5 liter, 763 CID
Bore
5.12 in, 130 mm
Stroke
6.18 in, 157 mm
Compression ratio
Variants but commonly at
17.1:1

Arrangement
6 cylinder in-line turbo
Aftercooled
Power
335-470 hp, 249-350 kW @ 2100 rpm
Torque
1550-1650 lb.ft, 2100-2210 Nm @ 1200 rpm

Approx weight and dimensions
Dimensions
length 1297 mm, 51 in
width 1100 mm, 43 in
height 1185 mm, 47 in
Weight
1030 kg
2270 lb



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Page Revision #19.1RBCS 16-10-2021