Component description of fuel distribution rail - GF07.61-P-6020V

ENGINE 272.920 in MODEL 203 up to Model Year 8

ENGINE 272.922 in MODEL 211

ENGINE 272.940 in MODEL 203 up to Model Year 8

ENGINE 272.941 in MODEL 203 up to Model Year 8

ENGINE 272.942 in MODEL 171 up to Model Year 8

ENGINE 272.943 in MODEL 211, 219

ENGINE 272.944 in MODEL 211

ENGINE 272.945 in MODEL 251 up to Model Year 8

ENGINE 272.946 in MODEL 221 up to Model Year 8

ENGINE 272.960 in MODEL 203 up to Model Year 8

ENGINE 272.963 in MODEL 171 up to Model Year 8

ENGINE 272.964 in MODEL 211, 219

ENGINE 272.965 in MODEL 221 up to Model Year 8

ENGINE 272.966 in MODEL 230 up to Model Year 8

ENGINE 272.967 in MODEL 164, 251 up to Model Year 8

ENGINE 272.970 in MODEL 203 up to Model Year 8

ENGINE 272.972 in MODEL 211

ENGINE 272.975 in MODEL 221 up to Model Year 8

ENGINE 273.922 in MODEL 221 up to Model Year 8

ENGINE 273.923 in MODEL 164 up to Model Year 8

ENGINE 273.924 in MODEL 221 up to Model Year 8

ENGINE 273.960 in MODEL 211, 219

ENGINE 273.961 in MODEL 216, 221 up to Model Year 8

ENGINE 273.962 in MODEL 211

ENGINE 273.963 in MODEL 164, 251 up to Model Year 8

ENGINE 273.965 in MODEL 230 up to Model Year 8

ENGINE 273.967 in MODEL 209

ENGINE 273.968 in MODEL 221 up to Model Year 8

ENGINE 272.940 in MODEL 209

ENGINE 272.960 in MODEL 209

Shown on ENGINE 272

Fig 1: Identifying Fuel Rail Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

The fuel distribution pipe is located at the intake manifold above the injection valves.

Task

The fuel distribution pipe supplies fuel to the injection valves under any operating condition equally and in doing so, balances fluctuations in the fuel pressure, for example, in case of abrupt acceleration by the fuel pressure reservoir, and its own volume.

Design

The injection valves are installed in the fuel distribution tube with an O-ring and a retaining clamp. The fuel feed at 3.8 bar system pressure is located at the left. A pressure gauge connection is located at the right.

Function

Fuel is provided by the fuel distribution pipe in the sufficient quantity for each injection valve.

The pressure gauge connection with valve is used for testing the fuel pressure and for releasing the pressure when carrying out assembly operations.

Always install a new sealing ring after opening the pressure gauge connection.