5.1.10. Case of a butterfly valve


1. Disconnect the negative plug of the accumulator.
2. Remove the air filter.
3. Remove an accelerator cable from the drive of a butterfly valve.
4. Remove electric sockets from the sensor of provision of a butterfly valve, elements of heating, the sensor of temperature of the arriving air and the engine of management of idling.
5. Remove a vacuum hose and a hose of ventilation of a case of the engine.
6. Where it is necessary, unscrew bolts or screws and remove an accelerator cable suspension bracket.
7. Unscrew bolts and remove the case of a butterfly valve from an inlet collector together with laying of round section which needs to be replaced.


1. Installation is made in the sequence, the return to removal.
2. Consider the next moments:
     – always use a new sealing ring which are established on the collector then accurately install the case of a butterfly valve;
     – check correctness of installation of earlier removed hoses;
     – check correctness of installation of earlier removed sockets;
     – establish an accelerator cable.