Category Archives for Fuel System

Identification number (fuel injector correction factor)

Example of an identification number on the fuel injector of the Ford Mondeo Inside the hydraulic servo system there are various restrictions with extremely small diameters which have specific manufacturing tolerances. These manufacturing tolerances are given as part of an … Continue reading

03. August 2018 by sam
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Fuel injectors

Fuel injectors on the 2.0L Duratorq-TDCi A Solenoid valve B Hydraulic servo system C Fuel injector nozzle 1 Fuel injector 2 Clip for the leak-off pipe 3 Leak-off pipe 4 Electrical connection – solenoid valve The start of injection and … Continue reading

03. August 2018 by sam
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High-pressure fuel lines and leak-off pipes

High-pressure fuel supply lines NOTE: The bending radii are exactly matched to the system and must not be changed. NOTE: After undoing one or more high-pressure fuel line(s), it/they must be replaced. Reason: The reason for this is that leaks … Continue reading

03. August 2018 by sam
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Excess pressure safety valve

1 High-pressure connection 2 High-pressure channel 3 Ball valve 4 Valve spring Inside the high-pressure pump, just in front of the high-pressure connection is an excess pressure safety valve incorporated into the high-pressure channel. If there is a malfunction in … Continue reading

03. August 2018 by sam
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Fuel rail (common rail)

A Fuel fuel injection supply manifold (rail type) B Fuel fuel injection supply manifold (spherical type) 1 Fuel pressure sensor 2 Fuel rail 3 Line connection (to the fuel injector) 4 Line connection (from the high-pressure pump) Structure and task … Continue reading

03. August 2018 by sam
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High-pressure chamber

1 Inlet valve 2 Cam ring 3 Roller with roller support 4 High-pressure chamber 5 Outlet valve 6 Pump plunger The storage pressure required for the fuel rail is generated in the high pressure chamber of the high pressure pump. … Continue reading

02. August 2018 by sam
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Flow of fuel through the high-pressure pump

1 Pressure control valve 2 Return bore 3 Feed bore – high-pressure chamber 4 Leak-off fuel – fuel injectors 5 Fuel return to fuel tank 6 High pressure channel to fuel rail 7 Fuel feed to the transfer pump The … Continue reading

02. August 2018 by sam
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High pressure pump

1 Drive shaft 2 Transfer pump (vane-type pump) 3 Cam ring 4 Feed bore 5 Fuel temperature sensor 6 Venturi in fuel return 7 Fuel metering valve 8 High pressure connection to the fuel rail 9 High-pressure channel 10 High-pressure … Continue reading

02. August 2018 by sam
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High-pressure System

1 Rail-type fuel injection supply manifold 2 Spherical fuel injection supply manifold 3 Fuel injection line 4 Fuel injector 5 Connection – leak-off pipe 6 Electrical connection – solenoid valve 7 High pressure line 8 Fuel temperature sensor 9 Fuel … Continue reading

02. August 2018 by sam
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Fuel filter

1 Connection – return pipe 2 Connection – feed pipe (from tank) 3 Connection – feed pipe (to the high-pressure pump) * 4 Filter element 5 Water drain screw 6 Bi-metal 7 Ball valve * Feed pipe connections – in … Continue reading

02. August 2018 by sam
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