| 摘要 |
A method and a device for setting the valve lash to a desired value at I.C. engines, including application of a motor driven coaxial double spindle (22) on each valve adjusting screw (18) and lock nut (19) followed by a number of consecutive operation steps comprising: tightening the adjuster screw (18) of each valve (11;111) to a snug torque level (Ts) , open the valve (11;111) by tightening the adjuster screw (18) through a predetermined angle while checking the torque magnitude required therefor, reverse the adjuster screw (18) through an angle exceeding the previous predetermined angle, re-tighten the adjuster screw (18) to the snug torque level (Ts), reverse the adjuster screw (18) through an angular interval corresponding to the desired valve lash, and tighten the lock nut (19) while holding the adjuster screw (18) stationary.
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