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故障现象:一辆夏利轿车,因润滑不畅,使两只气门摇臂磨损,更换新品,换后经多次调试,气门响声仍
Symptoms: a Charade sedan, due to poor lubrication, so that the two valve rocker wear and tear, replace the new product, after a number of changes after the test, the valve is still sound