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OM422, OM423, OM424 Essential Diesel Engine Bolt Tightening Torques
OM422, OM423, OM424 Mercedes Main Bearing Bolts
step 1 = 300 Nm
step 2 = + 90-100 degrees
OM422, OM423, OM424 Mercedes Connecting Rod Bolts
step 1 = 100 Nm
step 2 = + 90-100 degrees
OM422, OM423, OM424 Mercedes Cylinder Head Bolts
Single Hexagon Bolts
step 1 = 10 Nm
step 2 = 50 Nm
step 3 = 100 Nm
step 4 = 140 Nm
step 5 = 90-100 degrees
OM422, OM423, OM424 Diesel Engine Specs
OM422, OM422A, ADE422LA Engine Arrangements
OM422 Engine Arrangement
v8 engine
4-stroke cycle
Naturally aspirated
OM422A Engine Arrangement
v8 engine
4-stroke cycle
Turbocharged
OM422LA Engine Arrangement
v8 engine
4-stroke cycle
Turbocharged
Intercooled
OM423, OM423A, ADE423LA Engine Arrangements
OM423 Engine Arrangement
v10 engine
4-stroke cycle
Naturally aspirated
OM423A Engine Arrangement
v10 engine
4-stroke cycle
Turbocharged
OM423LA Engine Arrangement
v10 engine
4-stroke cycle
Turbocharged
Intercooled
OM424, OM424A, OM424LA Engine Arrangements
OM424 Engine Arrangement
v12 engine
4-stroke cycle
Naturally aspirated
OM424A Engine Arrangement
v12 engine
4-stroke cycle
Turbocharged
OM424LA Engine Arrangement
v12 engine
4-stroke cycle
Turbocharged
Intercooled
OM424, OM424A, OM424LA Displacement, Bore, Stroke, Compression Ratio
Displacement
ade422 - 14.6 liter
ade423 - 18.3 liter
ade424 - 21.9 liter
Compression ratio
Naturally asprirated = 16.9:1
Turbocharged = 16.25:1
Bore
128.00 mm
Stroke
142.00 mm
OM424, OM424A, OM424LA Engine Power and Torque
Power
OM422 - 202 kW, 275 hp @ 2300 rpm
OM422A - 243 kW, 326 hp @ 2300 rpm
OM423 - 256 kW, 343 hp @ 2300 rpm
OM423A - 300 kW, 402 hp @ 2300 rpm
OM424 - 289 kW, 388 hp @ 2300 rpm
OM424A - 412 kW, 552 hp @ 2300 rpm
Torque
OM422 - 1022 Nm @ 1200 rpm
OM422A - 1402 Nm, 1200 lb.ft @ 1200 rpm
OM423 - 1278 Nm, 943 lb.ft @ 1200 rpm
OM423A - 1687 Nm, 1244 lb.ft @ 1200 rpm
OM424 - 1388 Nm, 1024 lb.ft @ 1200 rpm
OM424A - 2236 Nm, 1649 lb.ft @ 1200 rpm
OM424, OM424A, OM424LA Engine Weight
approx
OM422 - 815 kg
OM422A - 865 kg
OM423 - 965 kg
OM423A - 1020 kg
OM424 - 1115 kg
OM424A - 1165 kg
Engine Designations German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE
e.g
OM422LA = ADE422TI
Diesel Engine Specs
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