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Possible faults in the mechanism of clearance of hydraulic actuator valves, their causes and remedies
* Possible causes of high noise at idle, increasing with the increase in engine speed to 1500 min-1 and not connected with the work of the lash: - Increased wear biscuit arm of the valve actuator or lever; - Increasing the gaps between the rods of valves and guide bushings; - Increased in comparison with the allowable misalignment of the valve and the seat; - Misalignment of the ends of the valve springs; - More than the permissible runout chamfer the valve head; - Contact with the valve spring damper mechanism of rotation of the valve.
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