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Mercedes OM407 - OM409 engine specifications and manuals

 
Diesel engine manuals, specs, bolt torques
Diesel Engine manuals and specifications at Barrington Diesel Club
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OM407 Essential Diesel Engine Bolt Tightening Torques

 

OM407 MercedesMain Bearing Bolts 
12pt bolts:
300 Nm + 90-100 degrees

Hex bolts: 80-90 Nm + 90-100 degrees


OM407 MercedesConnecting Rod Bolts 
step 1 = 100 Nm
step 2 + 90-100 degrees

OM407 MercedesCylinder 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 MercedesArrangement 
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 MercedesDesignations,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 MercedesDesignations 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


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