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Caterpillar 1674 specifications and manuals - amp

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Essential bolt tightening torques are
 main bearing cap bolt torque, 
 connecting rod cap bolt torque 
 and the cylinder head bolt torques.
 


 
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Workshop manual, specs and bolt torques for Caterpillar 1674 engines - amp

 
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CATERPILLAR 1674 Essential Diesel Engine Bolt Tightening Torques

 
CAT 1674
Main Bearing capscrews

Step1 = 70 lb.ft, 95 Nm
Step2 = plus 90 degrees

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engine manuals and specs
 
CAT 1674
Connecting Rod Bolts

Step1 = 30 lb.ft, 40 Nm
Step2 = plus 90 degrees

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engine manuals and specs
 
CAT 1674
Cylinder Head Bolt

Step1 = 135 lb.ft, 183 Nm
Step2 = 185 lb.ft, 250 Nm
Step3 (repeat step2) 
= 185 lb.ft, 250 Nm

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engine manuals and specs 
 

CATERPILLAR 1674 Diesel Engine workshop repair Manuals

 
CAT 1674 disassembly assembly manual, 134 pages, click to download

CAT 1674 specification manual, 60 pages, click to download

CATERPILLAR 1674 Diesel Engine Specs

 
CAT 1674
Displacement, bore and stroke

Displacement
10.5 liter
638 CID

Bore
4.75 in
120.65 mm 

Stroke
6.0 in
152.4 mm

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CAT 1674
Dimensions and weight

Dimensions
approx
length = 1524 mm, 60.0 in
width = 954 mm, 37.5 in
height = 1178 mm, 46.4 in

Weight
approx
1450 Kg, 
3190 lb

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CAT 1674
Power and arrangement

Power
270-325 hp, 201-242 Kw 
@ 2200 rpm

Arrangement
6 cylinder in-line 
turbo
intercooled

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