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Mercedes W124since 1985-1995 of releaseRepair and car operation |
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W124 Mercedes + Governing bodies and control devices + MAINTENANCE + 2. Maintenance (diesel engines) + ENGINE + 4. Repair of 6-cylinder petrol SOHC engines + 5. Repair of 6-cylinder petrol DOHC engines + 6. Repair of the diesel engine established in the car + 7. Major maintenance of engines + COOLING SYSTEM + FUEL SYSTEM + 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC) - 11. System of injection of BOSCH HFM fuel 11.2. General information 11.3. Accelerator cable 11.4. Air filter 11.5. Casing of the air filter 11.6. Fuel filter 11.7. Fuel level sensor 11.8. Fuel pump 11.9. Fuel tank 11.10. Throttle case 11.11. Inlet collector + 11.12. Elements of system of injection of BOSCH HFM fuel 11.13. Pressure removal in fuel system 11.14. Adjustment of turns of idling and the contents WITH in exhaust gases + 12. Fuel system of diesel engines + 13. Fuel system of diesel engines + SYSTEMS OF START, IGNITION + 15. System of ignition of 4-cylinder petrol engines + 16. System of ignition of four-cylinder petrol engines + PRESTARTING HEATING + TRANSMISSION + 19. Mechanical transmission + 20. Automatic transmission + POWER SHAFTS + BRAKE SYSTEM + SUSPENSION BRACKET + BODY + ELECTRIC EQUIPMENT + CHECK OF MALFUNCTIONS |
11.13. Pressure removal in fuel system
Prevention The fuel system consists of the fuel pump, the accumulator of pressure, the fuel filter, fuel nozzles, a regulator of pressure, the distributor of fuel and топливопроводов. At operation of the engine or after ignition inclusion fuel is in fuel system under constant pressure. at work on fuel system it is necessary to remove previously pressure in system. Work on pressure removal in fuel system is desirable for making on the cold engine. To remove pressure in fuel system it is possible, using the additional valve located in an end face of the fuel highway. For performance of this operation use of the special equipment having a hose of supply of fuel under pressure with adapters is necessary. In the absence of the special equipment for pressure removal in fuel system it is possible to use the alternative method stated below. Take the relay of the fuel pump, then start the engine in an idling mode to its stop. Because the engine consumes fuel, and the fuel pump does not pump up fuel in fuel system, pressure in fuel system considerably decreases. Remove a weight wire from the accumulator. Uncover a toplivozalivny mouth to level pressure in a fuel tank with the atmospheric. Establish a cover of a toplivozalivny mouth into place. Establish the container under any connection топливопровода and prepare rags which will absorb the spread fuel. Being careful, slowly weaken connection топливопровода. Close connection топливопровода pure rags in order that fuel was not sprayed in the parties. After pressure removal in fuel system completely unscrew топливопровод and close its ends jams. |
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