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OM661 and OM662 Essential Diesel Engine Bolt Tightening Torques
OM661, OM662 Mercedes Main Bearing Bolts
Step 1 = 55 Nm
Step 2 = +90 degrees
OM661, OM662 Mercedes Connecting Rod Bolts
Step 1 = 35 Nm
Step 2 = +90 degrees
OM661, OM662 Mercedes Cylinder Head Bolts
12 Sided socket head bolts
Stage 1 = 10 Nm
Stage 2 = 35 Nm
Stage 3 = + 180 degrees
OM661 and OM662 Diesel Engine Specs
OM661, OM662 Mercedes Arrangement
OM661
in line 4 engine,
4-stroke cycle
turbo intercooled
OM662
in line 5 engine
4-stroke cycle
turbo intercooled
OM661, OM662 Mercedes Displacement, bore, stroke
Displacement
OM661
2.3 liter
OM662
2.9 liter
Bore
89.0 mm
Stroke
92.4 mm
OM661, OM662 Mercedes Power and compression ratio
Power
OM661
74 kW @ 4000
OM662
88 kW @ 4000
Compression ratio
22:1
Mercedes Designations German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE
Diesel Engine Specs
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