Mercedes-Benz M04 engine

Last updated
Mercedes-Benz M04
Overview
Manufacturer Mercedes-Benz
Production1927-1928
Layout
Configuration Inline-6
Displacement 3.0–3.1  L (183–189  cu in)
Cylinder bore 76  mm (3.0  in)
Piston stroke 115  mm (4.5  in)
Valvetrain 12-valve, SOHC, two-valves per cylinder
Compression ratio 5.0:1
Combustion
Fuel system Carburetor
Fuel type Gasoline
Oil system Dry sump
Output
Power output 55  hp (41  kW)
Torque output 119  lb⋅ft (161  N⋅m)
Chronology
Predecessor Mercedes-Benz M03 engine
Successor Mercedes-Benz M09 engine

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]

Contents

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

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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.