| 1. Check a plate of each valve for local corrosion, prozhog, cracks and the general wear. Check a valve core for wear and a bend. Check wear of an end face of a core of the valve. With any defects the valve is subject to replacement. |
| 2. Measure by a micrometer diameter of a core of the valve in several places on core length. Any essential distinction in the obtained data indicates wear of a core of the valve and obligatory replacement of the valve. |
| 3. If valve are in satisfy a telny state, they have to be inserted into the places and are ground in. If plates of valves or a saddle are strongly worn-out, before their grinding in it is necessary to process mechanically or even to replace. |
| 4. Grinding in of valves is carried out as follows. Establish a head of the block of cylinders by combustion chambers up on wooden whetstones. |
| 5. Grease with paste for grinding in of the place a natarelka of the valve and a saddle of the valve, install the valve on the place and on a plate of the valve establish a sucker with the holder (handle). Rotating the valve a sucker in different directions, grind in the valve, and it is periodically necessary to raise the valve for redistribution of pritirochny paste. |
| 6. If rough pritirochny paste is used, to make grinding in before emergence of a uniform opaque surface on a saddle of the valve and the valve. Then erase the used composition of paste and repeat process of grinding in with fine paste. To make grinding in before emergence of easy gray and opaque color. |
| 7. Carefully remove traces of pritirochny paste, using the corresponding solvent. |