Cause Analysis and Elimination Measures of Cold Start Whistle of an Engine
An engine whistled during cold start.According to the frequency response characteristics of parts,the vibration test of the engine was carried out.Through the vibration test and analysis of the engine block,it is concluded that the source of cold start whistle was that the clearance between crankshaft driv-ing gear and balance shaft gear and that between two balance shaft gears were too small.Appropriately in-creasing the tolerance of center distance between crankshaft and balance shaft and the tolerance of center distance between two balance shafts can increase the meshing clearance between gears and avoid whistling caused by too small backlash.
万方数据
维普
