4.17. Recommendations about service of valves
In view of complexity of kind of work and need of use of the special equipment, performance of service of valves, directing plugs and saddles it will be most correct to charge them to the car-care center personnel.
By own strengths of the owner of the car such procedures, as head dismantling, primary cleaning and check of a condition of components of the klapanny mechanism can be made. Then it is necessary to collect and deliver a head for professional service in a car-care center workshop. Thus rather fair idea of volume of subjects to works is usually made and the approximate list of necessary replaceable components can be prepared.
Experts of a workshop will remove valves and klapanny springs from a head and will make necessary regenerative repair or replacement of worn-out components (valves, their saddles, directing plugs, springs, plates of springs and crackers of cutting locks). Replacement of maslootrazhatelny caps is without fail made. After assembly of components the adjusting height of klapanny springs will be checked. In case of need experts will make a head pro-point for the purpose of restoration of planeness of its interfaced surface.
After completion of professional repair of a head its condition usually corresponds to a condition of the new. Before installation on the engine be not too lazy to clean carefully once again a head, having completely removed from all her cavities and channels metal sawdust, traces of an abrasive and other small production garbage. All channels and openings blow the compressed air (do not forget to put on goggles).