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Detroit Diesel 4-71 engine specifications and manuals - amp


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Detroit Diesel 4-71 Essential Diesel Engine Bolt Tightening Torques


Detroit Diesel 4-71 Main Bearing Bolts
step 1 = 100 lb.ft, 135 Nm
step 2 = 184 lb.ft, 250 Nm

Detroit Diesel 4-71 Cylinder Head Bolts
step 1 = 100 lb.ft, 135 Nm
step 2 = 184 lb.ft, 250 Nm

Detroit Diesel 4-71 Diesel Engine Specs


Detroit Diesel 4-71 Arrangement, displacement, bore, stroke and compression ratio

4 Cyl In-Line, Naturally Aspirated

4 Cyl In-Line, turbocharged

4-71 - 4.7 liter, 284 CID

4.25 in, 180.0 mm

5.0 in, 127.0 mm

Compression ratio
4-71N 18.7:1
4-71T 17.0:1

Detroit Diesel 4-71 Power and torque

160 hp, 119 kW @ 2100 rpm

211 hp, 157 kW @ 2300 rpm

407 lb.ft, 552 Nm @ 1600 rpm

533 lb.ft, 723 Nm @ 1400 rpm

Detroit Diesel 4-71 Dimensions and weight

Dimensions approx
length 1067 mm, 42 in
width 737 mm, 29 in
height 1067 mm, 42 in

length 1128 mm, 44 in
width 790 mm, 31 in
height 1120 mm, 44 in

Weight approx
4-71N 807 kg, 1780 lb
4-71N 830 kg, 1830 lb

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

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