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Mercedes OM444 engine specifications and manuals

 
Diesel engine manuals, specs, bolt torques
Diesel Engine manuals and specifications at Barrington Diesel Club
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OM444 Essential Diesel Engine Bolt Tightening Torques

 

OM444 MercedesMain Bearing Cap Screws
 
Center 156 mm max
step 1 = 100 Nm
step 2 = 200 Nm
step 3 = 330 Nm
step 4 = + 90-100 degrees

Main Bearing Cap Screws - Lateral
step 1 = 80 Nm


OM444 MercedesConnecting Rod Bolts
 
step 1 = 100 Nm
step 2 = + 90-100 degrees


OM444 MercedesCylinder Head Bolts
 
step 1 = 10 Nm
step 2 = 50 Nm
step 3 = 100 Nm
step 4 = 140-150 Nm
step 5 = 180-190 Nm
step 6 = + 90-100 degrees



OM444 Diesel Engine Specs

 

Mercedes OM444 engine,Displacement, Bore, Stroke, Compression Ratio, Weight
 
Displacement
om444 - 22.618 liter

Bore
ADE
Naturally aspirated = 130 mm

Other
Turbo models = 128.00 mm

Stroke
142.00 mm
Compression ratio
Naturally asprirted = 16.9:1
Turbocharged = 16.25:1

Weight
approx
om444 - 1115 kg
om444A - 1165 kg
om444LA - 1220 kg

OM444 MercedesArrangement
 
om444
v12 engine
4-stroke cycle
Naturally aspirated

om444A
v12 engine
4-stroke cycle
Turbocharged

om444LA
v12 engine
4-stroke cycle
Turbocharged
Intercooled

OM444 MercedesPower and torque
 
Power
om444 - 320 kW @ 2100 rpm
om444A - 390 kW @ 2100 rpm
om444LA - 480 kW @ 2100 rpm

Torque
om444 - 1650 Nm @ 1200 rpm
om444A - 2400 Nm @ 1200 rpm
om444LA - 2650 Nm @ 1200 rpm



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