3.9. Dismantling of a head of the block of cylinders, grinding in of valves

 PERFORMANCE ORDER

We remove a head of the block of cylinders from the engine (see Replacement of laying of a head of the block of cylinders).

We turn off seven nuts of fastening of collectors to a head of the block and we remove them (see Replacement of laying of inlet and final collectors).

Key "on 10" we turn off two nuts of fastening of a branch pipe...

... also we remove a branch pipe.

Key "on 13" we turn off two nuts of fastening of a double branch pipe...

... also we remove it from a block head. Between branch pipes and a head sealing laying is established.

We enclose the improvised emphasis under the valve (a nut, but wooden whetstone is better).

Rassukharivayem the valve (see Replacement of maslootrazhatelny caps of the mechanism of gas distribution).

We take out the valve from the directing plug.

We apply on a plate of the valve pritirochny paste.

We install the valve into place. We put on the device for grinding in a valve core.

Pressing a plate of the valve to a saddle, we turn it serially in one, in other party.

If necessary for convenient access to extreme valves a key "on 13" we turn off two extreme hairpins, previously законтрив on them two nuts...

We continue grinding in of the valve before emergence of an equal opaque rim on a saddle and a facet of a plate of the valve.

Washout carefully, we install the valve into place, having replaced a maslootrazhatelny cap (see Replacement of maslootrazhatelny caps of the mechanism of gas distribution).

Head "on 12" we unscrew the plug...

... also we remove it together with an adjusting bolt and a lock-nut. If necessary we replace them.

By metal ruler it is checked the privalochny plane of a head of the block of cylinders. An admissible gap – 0,15 mm.