Mercedes-Benz M04 engine
Overview
ManufacturerMercedes-Benz
Production1927-1928
Layout
ConfigurationL-6
Displacement3.0–3.1 L (183–189 cu in)
Cylinder bore76 mm (3.0 in)
Piston stroke115 mm (4.5 in)
Valvetrain12-valve, SOHC, two-valves per cylinder
Compression ratio5.0:1
Combustion
Fuel systemCarburetor
Fuel typeGasoline
Oil systemDry sump
Output
Power output55 hp (41 kW)
Torque output119 lb⋅ft (161 N⋅m)

The Mercedes-Benz M04 engine is a naturally-aspirated, 3.0-liter and 3.1-liter, straight-6, internal combustion piston engine, designed, developed and produced by Mercedes-Benz; between 1927 and 1928.[1][2][3][4][5][6]

M04 engine

The side-valve six-cylinder 2,994 cc engine delivered maximum output of 55 PS (40 kW; 54 hp), but now at the lower engine speed of 3,200 rpm. At the back, however, the final drive ratio was changed from 5.4 :1 to 4.8 : 1, and the listed top speed went up to 108 km/h (67 mph)

Having raised the final drive and the top speed for 1927, the manufacturer now moved to offer a choice of ratios, either reducing it back to 5.4 :1 or raising it further to 5.8 :1. The former ratio was described as the “Flachland” (flat lands) version while the latter as the “Berg” (mountain) version. At the same time a small increase in the cylinder stroke accounted for an increase in overall engine capacity to 3,131 cc. Claimed maximum output was unchanged at 55 PS (40 kW; 54 hp), still at 3,200, although there was a measurable increase in torque.

Applications

References

  1. ↑ "Mercedes-Benz M04 Engine". Sportlichleicht.com. Retrieved 10 November 2021.
  2. ↑ "Mercedes-Benz 12/55 PS Typ 300 Torpedo Manual, 55hp, 1927". Car.info. Retrieved 10 November 2021.
  3. ↑ "MERCEDES BENZ Typ S (W06) specs & photos - 1927, 1928". Autoevolution.com. Retrieved 10 November 2021.
  4. ↑ Murphy, William (2 July 2008). "1927 Mercedes-Benz S-Type Sportwagen". Simeone Foundation Automotive Museum. Retrieved 10 November 2021.
  5. ↑ "MERCEDES BENZ Typ 12/55 - 14/60 (W03/W04/W05) specs & photos - 1926, 1927, 1928, 1929". Autoevolution. Retrieved 10 November 2021.
  6. ↑ "Mercedes-Benz 12/55 PS Torpedo W04". Car.info. Retrieved 10 November 2021.
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