Attention: Do not allow dirt to enter the path of the power system!
Attention: Remember that nozzles are precision equipment and should be handled with extreme care!
Attention: Before working on the fuel supply system on models equipped with engines with the system «Common Rail», it is necessary to wait approximately 1 minute after the ignition is switched off - during this time the pressure in the fuel path automatically decreases!
Z13DT engine
1. Disconnect the wire from the negative terminal of the battery (see chapter 5) and remove the engine cover (see chapter 2).
2. Remove the throttle inlet, disconnect the ventilation hose, loosen the union nuts and remove the high pressure fuel lines, remove the oil return line from the injectors (see illustration 16.2).
3. Disunite sockets of electroconducting of atomizers.
4. Loosen the 2 nuts of the injector mounting brackets and remove the injectors from their seats (see resist. illustration).
17.4. Staples (2) nozzles (3) (Z13DT engine) - the arrows indicate the mounting seats of the injectors: 1. Nuts for fastening the brackets
5. Clean the inner surfaces of the seats, replace the injector seals.
6. Installation is carried out in the reverse order.
Y17DT engines (L) /Z17DTH
Note: When replacing injectors, you must first enter an individual QR-CODE into the ECM memory (correction data to compensate for different manufacturing tolerances).
7. Remove the camshaft housing cover (see Chapter 2, Section 10).
8. Mark the installation positions of the injectors - they should be in place during installation.
9. Turn out bolts of fastening of fastening brackets (see resist. illustration) and remove the injectors from the engine. If, when removing the injectors, any of them will be removed along with the heat-protective sleeve, replace the o-rings on the sleeve and install it in place using the KM-6357 tool.
17.9. Removing the nozzle (1) (on the example of the Z17DTH engine): 2. Thermal protection sleeve; 3. Sealing gaskets; 4. Adaptation KM-6357; 5. Fixing bolt; 6. Mounting bracket
Note: The thermal sleeves can be removed using the same tool.
10. Replace rubber and copper injector gaskets (see resist. illustration) and seals of other removed components.
17.10. Sealing ring (7) and copper pad (8) nozzles (1) (on the example of the Z17DTH engine)
11. Installation is made in an order, the return to an order of removal. Before tightening the fixing bolts of the injectors, align them with a special tool (see resist. illustration).
17.11. Attachment KM-6358 (9) for injector alignment
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