Mercedes-Benz M 129
| Mercedes Benz | |
|---|---|
| M 129 | |
| Manufacturer: | Daimler Benz |
| Production period: | 1965-1968 |
| Design: | Six cylinder in - line engine |
| Combustion principle: | Gasoline engine |
| Previous model: | Mercedes-Benz M 127 |
| Successor: | Mercedes-Benz M 130 |
The Mercedes-Benz M 129 was a six-cylinder in - line engine with manifold injection and a displacement of 2.5 liters manufactured by Daimler-Benz from 1965 to 1969 . It was the injection version of the M 108 carburettor engine that was being produced at the same time .
General
With intake manifold injection and the increased compression ratio (increase from 9: 1 to 9.3: 1 or 9.5: 1 from 1966) this achieved a significant increase in performance compared to the carburettor model. Otherwise the unit remained essentially unchanged.
Technical specifications
- Six-cylinder in - line engine ; Engine block from cast iron ; Cylinder head from aluminum alloy
- Crankshaft with seven main bearings
- OHC valve control : a camshaft in the cylinder head; two valves per cylinder
- Manifold injection via mechanical Bosch 6-piston injection pump with map control
- Bore x stroke : 82 mm × 78.8 mm
- Displacement : 2496 cm³
- Compression ratio : 9.3: 1 (9.5: 1 from 1966);
- Output: 150 hp at 5500 rpm
- Torque: 216 Nm at 4200 rpm
use
- Mercedes-Benz W111 250SE Coupe / Cabriolet (1965-67).
- Mercedes-Benz 250SE W108 (1965-68).
- Mercedes-Benz 250 SL "Pagoden-SL" (1966–68).