W123-300D-Motor/en

W123-300D-Motor/en

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Informations about the W123, 300 D sedan
Combustion principle four-stroke Diesel (with indirect injection)
Configuration front, longitudinal; vertical
Engine type OM 617 D 30 / 617.912
Number of cylinders / arrangement 5 / in line
Bore x Stroke 91.0 x 92.4 mm; from 08.1978: 90.9 x 92.4 mm
Total displacement 3005 cc (tax 2971 cc); from 08.1978: 2998 cc (tax 2938 cc)
Compression ratio 21.5
Crankshaft bearings 6
Rated output 80 hp / 59 kW at 4000 rpm; from 09.1979: 88 hp / 65 kW at 4400 rpm
Rated torque 172 Nm at 2400 rpm
Number of valves / arrangement 1 intake, 1 exhaust / overhead
Valve operation overhead camshaft
Camshaft drive double roller chain
Fuel system indirect injection, mechanically controlled; Bosch 5-plunger injection pump
Cooling water cooling / pump; 11 l water
Lubrication pressure circulation lubrication / 5 l oil
Electric system 12 V
Battery 88 Ah / in the engine compartment
Generator three-phase AC / 770 W
Starter electrical / 2.0 kW; from 1980: 2.3 kW
Ignition compression ignition
Fuel tank: position / capacity above the rear axle / 65 l
Fuel supply piston pump as part of the injection pump