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OM407 Essential Diesel Engine Bolt Tightening Torques
OM407 Mercedes Main Bearing Bolts
12pt bolts
300 Nm + 90-100 degrees
Hex bolts
80-90 Nm + 90-100 degrees
OM407 Mercedes Connecting Rod Bolts
step 1 = 100 Nm
step 2 + 90-100 degrees
OM407 Mercedes Cylinder Head Bolts
step 1 = 10 Nm
step 2 = 60 Nm
step 3 = 120 Nm
step 4 = 180 Nm
final step +90 - 100 degrees
OM407 Diesel Engine Specs
OM407 Mercedes Arrangement
OM407 -ADE407N
6 Cylinder In-Line
4-stroke cycle
Naturally aspirated
ADE407C
6 Cylinder In-Line
4-stroke cycle
Compensated
OM407A - ADE407T
6 Cylinder In-Line
4-stroke cycle
Turbocharged
OM407 Mercedes Designations, displacement, compression ratio and weight
Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE
Displacement
11.41 liter
Compression ratio
407N 16.5:1
407C 16.0:1
407T 16.0:1
Weight approx
407N 795 kg, 1749 lb
OM407 Mercedes Designation and Power
Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE
Power
407N
233 hp, 174 kW @ 2200 rpm
407C
234 hp, 175 kW @ 2200 rpm
407T
276 hp, 206 kW @ 2200 rpm
OM407 Mercedes Designations and Torque
Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE
Torque
407N
614 lb.ft, 823 Nm @ 1400 rpm
407C
727 lb.ft, 975 Nm @ 1300 rpm
407T
868 lb.ft, 1177 Nm @ 1300 rpm
Diesel Engine Specs
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