The Mercedes-Benz M18 engine is a naturally-aspirated, 2.9-liter, straight-6, internal combustion piston engine, designed, developed and produced by Mercedes-Benz; between 1933 and 1937.[1][2][3][4]
| Mercedes-Benz M18 engine | |
|---|---|
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 1933-1937 |
| Layout | |
| Configuration | L-6 |
| Displacement | 2.9 L (177 cu in) |
| Cylinder bore | 78 mm (3.1 in) |
| Piston stroke | 100 mm (3.9 in) |
| Valvetrain | 12-valve, SOHC, two-valves per cylinder |
| Compression ratio | 5.75:1 |
| Combustion | |
| Fuel system | Carburetor |
| Fuel type | Gasoline |
| Oil system | Dry sump |
| Output | |
| Power output | 60 hp (45 kW) |
| Torque output | 100–103 lb⋅ft (136–140 N⋅m) |
The six-cylinder 2,867 cc side-valve engine produced a maximum output of 60 PS (44 kW; 59 hp) at 3,200 rpm. In 1935 the compression ratio was increased along with maximum power which was now given as 68 PS (50 kW; 67 hp). Power was delivered to the rear wheels via a four-speed manual transmission with synchromesh on the top two ratios.[5]