2 – camshaft bearing cover;

3 – oil supply tube;

4 – laying of a head of the block of cylinders;

5 – cover of a head of the block of cylinders;

6 – partition;

7 – laying of a cover of a head of the block of cylinders;

8 – valve guide;

9 – valve saddle;

10 – technological cap;

11 – hairpin