5.19.5. Replacement of a katkollektor

Nuts of fastening of a katkollektor to a head of the block of cylinders are remote. Besides, the flange of a katkollektor is condensed with the metalreinforced laying. Sealing laying needs to be replaced at each dismantling of connection. Before removal of a katkollektor it is necessary to remove an inlet collector — it will facilitate access to its fastening.
1. Remove a decorative casing of the engine (see. "Removal and installation of a decorative casing of the engine").
2. Remove a wire from the minus plug of the rechargeable battery.
3. Disconnect a reception pipe of the additional muffler from a katkollektor for what turn off nuts of fastening of a flange of a reception pipe to a flange of a katkollektor and remove a flange of a reception pipe from katkollektor flange hairpins (see. "Replacement of the additional muffler").
4. Remove the air filter (see. "Removal and installation of the air filter").
5. Remove the airbringing sleeve and three hoses of system of ventilation of a case (see. "Cleaning of system of ventilation of a case").
6. Separate four blocks of a plait of wires of modules of ignition and take a plait aside. Remove ignition modules (see. "Removal and installation of coils of ignition").
7. Remove throttle knot (see. "Removal and installation of throttle knot").
8. Remove an inlet collector (see. "Replacement of laying of a cover of a head of the block of cylinders").
9. Disconnect from a motor plait of a block of plaits of wires of the managing director and diagnostic sensors of concentration of oxygen …
10. … also disconnect from a heat-insulating guard of the steering mechanism holders of plaits of wires of the managing director and diagnostic sensors of concentration of oxygen.
11. Turn off three nuts of fastening of a thermoinsulating guard of the steering mechanism to a motor board and remove a guard.
12. Turn off two nuts of fastening of an arm of the bringing pipe of the water pump, turn out bolts of fastening of a katkollektor to an arm of its fastening, turn off eight nuts of fastening of a katkollektor to a head of the block of cylinders and remove a katkollektor. A katkollektor detachment from a head of the block of cylinders and its troubleshooting are in detail described in the subsection "Replacement of Laying of a Katkollektor".

13. Remove sealing laying of a katkollektor from block head hairpins.

Prevention
Surely replace sealing laying of a katkollektor and an inlet pipe at each dismantling of connection new.

14. Clear flanges of a head of the block and a katkollektor of the remains of old laying and a deposit.
15. Turn out both sensors of oxygen from a katkollektor and install them on a new katkollektor.
16. Establish a katkollektor and all removed details and knots as it should be, the return to removal.

Useful tips
In order to avoid sticking of laying and for increase in its tightness we recommend to grease before installation laying on both sides a thin layer of graphitic lubricant.
Grease hairpins of fastening of a final collector with graphitic lubricant.