| 1. Put on a working facet of the valve a thin layer притирочной pastes and insert the valve into a block head. |
| 2. Clamp a valve core in the adaptation for grinding in. |
| 3. Turn the valve in both parties by means of the adaptation, periodically pressing the valve to a saddle. An external sign of satisfactory grinding in is monophonic matte grey colour of working facets of the valve and a saddle. |
| 4. After grinding in carefully wipe a pure rag the valve and a saddle, and then wash out for removal of the rests притирочной pastes. |