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Removal and installation of the valve assembly

For models 463.333 (M628)

Self-locking fasteners be replaced without fail!

Details of the installation of the valve (M628)

1, 2, 3 - Pressure line fuel path 4 - Hollow bolt couplings 4a - The socket connector 4b - Sealing rings 5 - Screw	6 - the fuel return line 70 - Fuel filter 21/7 - the valve assembly B4 / 6 - The pressure sensor in the fuel line Y74 - Valve-pressure regulator

PERFORMANCE ORDER

Switch off the ignition. Open the hood and fix it in an upright position. Remove the air cleaner (see. Section Service Component inlet air path). Remove the oil filler cap trim. Remove the fuel filter (70). Disconnect the electrical wiring from the pressure sensor in the fuel line (B4 / 6) and the pressure control valve (Y74). Disconnect the fuel pressure line (1, 2 and 3), - immediately plug the open ends of lines / fittings, collect traces of spilled fuel, prepare the removable sealing elements. Remove the banjo bolt (4) and remove the choke connector (5). Sealing rings (4b) are subject to replacement without fail! Remove the mounting bolts (5) and remove the valve assembly (21/7) to collect fully supplied him return line (6). Disconnect from the valve assembly (21/7), the return line (6), - Prepare the replacement O-ring. Installation is performed in reverse order - do not forget to replace the sealing elements. Final tightening nuts choke pressure fuel lines (1, 2 and 3) should be made only after a tightening of bolts (5). Start the engine and check the components of the power system for signs of leaks. Finally, clean the memory module on-board self-test (see chap. Systems of an electric motor).