5.8.3. Possible malfunctions of hydrojacks of backlashes in the mechanism of a drive of valves, their reasons and ways of elimination
*Возможны following reasons of the raised noise in a mode of the idling which amplifying with increase of frequency of rotation of a cranked shaft to 1500 mines-1 and has been not connected with work of hydrojacks:
- The raised deterioration of a cracker of the lever of a drive of the valve or the lever;
- The increased backlashes between cores of valves and directing plugs;
- Increased in comparison with admissible несоосность the valve and a saddle;
- непараллельность end faces клапанных springs;
- большее, than it is admissible, palpation of a facet of a head of the valve;
- Contact демпфера клапанной springs with the mechanism of rotation of the valve.