Mercedes OM661-OM662 Manuals, Engine Specifications & Bolt Torques

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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, 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