History
Mercedes-Benz M 114 6 cylinder engine
Mercedes Benz | |
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M 114 | |
Manufacturer: | Mercedes Benz |
Production period: | 1967-1972 |
Style: | Line six-cylinder |
Engines: | 2.5 liters (2496 cc) |
Previous model: | M 108 |
Successor: | M 110 |
The M 114 is a gasoline engine with six cylinders in series used by Mercedes-Benz , which was produced from 1967 to 1972 in the Mercedes-Benz Models: 230-280/C/E
M114.920
This version was almost identical to the Mercedes-Benz M 108 , the unit differs by the timing, which allow higher torque at low speeds.
- 6 cylinders in series, cast iron engine block, cylinder head aluminum
- Bore and stroke: 82 mm × 78.8 mm
- Displacement: 2496 cc
- an overhead camshaft
- two valves per cylinder
- two Zenith carburetors Type 35 INAT
- Compression ratio: 9: 1
- seven crankshaft bearings
- Max. Power: 96 kW (130 hp) at 5400rpm
- Max. Torque: 199 Nm at 3600rpm
Use
- Mercedes-Benz 250 (W 114) (1968-1972)
- Mercedes-Benz 250 C (W 114) (1969-1972)
M114,980
This engine is equipped with electronic fuel injection, a Bosch D-Jetronic . The M114 was the first Mercedes-Benz engine to be equipped with this technology after mechanical systems were introduced in the 1950s.
Electronic injection Bosch D-Jetronic; Compression ratio: 9.5: 1; Maximum power: 110 kW (150 hp) at 5500rpm Maximum torque: 211 Nm at 4500rpm
Used: Mercedes-Benz 250 CE (W 114) (1969-1972)
Technical
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Mercedes-Benz Model: 230-280/C/E (114) 2,5 250C Engine code: 114.920 (1968-1972)
Output: 96 (130) @5400rpm
No. of cylinders Type 6/OHC
Capacity 2496 cc
Compression ratio 9.0:1
Suitable for unleaded petrol No
Fuel system Make Zenith Type 35 INAT Carb-2V
Bosch Ignition coil Type 0 221 102 036
Firing order 1-5-3-6-2-4
Distributor Make Bosch No.0 231 116 052
Distributor Contact breaker gap 0.3mm
Starter motor MakeBosch Type GF(R)12V1,4PS
Minimum starting voltage 10V
Maximum cranking amps 149-182A
Alternator/Regulator Make Bosch
Regulated voltage 13.9-14.8VMercedes-Benz Model: 230-280/C/E (114) 2,5 250E Engine code: 114.980 (1968-1972)
Output: 112 (150) @5500rpm
No. of cylinders Type 6/OHC
Capacity 2496cc
Compression ratio 9.5:1
Suitable for unleaded petrol No
Fuel system Make Bosch Type Injection MFI-i
Ignition coil Make Bosch Type 0 221 118 005
Firing order 1-5-3-6-2-4
Distributor Make Bosch No.0 231 301 008
Distributor Contact breaker gap 0.3 mm
Fuel pump pressure 2-2.1 bar© Motor car History
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Service
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Mercedes-Benz Model: 230-280/C/E (114) 2,5 250C Engine code: 114.920 (1968-1972)
Spark plugs Original equipment Bosch Type W5DC
Spark plugs Electrode gap 0.6-0.8 mm
Spark plugs Make Champion Type N7YCC
Spark plugs Make NGK Type BP6ES
Valve clearance -INLET 0.08mm cold
Valve clearance -EXHAUST 0.20mm cold
Engine oil grade - normal climate 10W/30 SAE
Engine oil with filter 5.5 litres
Manual gearbox oil 4/5 speed 1.6 litres
Automatic transmission oil 4.6 litres
Differential oil rear 1.15 litres
Cooling system 9.9 litresMercedes-Benz Model: 230-280/C/E (114) 2,5 250E Engine code: 114.980 (1968-1972)
Spark plugs Original equipment Bosch Type W5DC
Spark plugs Electrode gap 0.6-0.8mm
Spark plugs Make NGK Type BP6ES
Valve clearance -INLET 0.08mm cold
Valve clearance -EXHAUST 0.20mm cold
Engine oil grade - normal climate 10W/30SA
Engine oil with filter 6.0 litres
Manual gearbox oil 4/5 speed 1.5 litres
Automatic transmission oil 4.5 litres
Differential rear 1.0 litres
Cooling system 10 litres© Motor car History