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Removal and installation of the valve assembly models 163,128
Details of the installation of the valve assembly models 163.128 (628 series engine)  | |
| - Details of the installation of the valve assembly models 163.128 (engine series 628) are shown in the illustration, which includes all the links in the text.
- Remove the air distribution duct (see. Section Service Component inlet air path).
- Remove the fuel filter assembly with support bracket (see chap. Power supply system and exhaust).
- 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 the disconnected lines / fittings, collect traces of spilled fuel.
- Remove the banjo bolt (4) choke connector (5).
 | O-rings are subject to replacement without fail! |
- Remove the valve block (9) with the distribution manifold air path after disconnecting it from the return line (8).
- Installation is performed in reverse order - do not forget to replace the sealing elements (6, 7), 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).
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