一台WD615型柴油机,由于使用不当造成曲轴烧瓦。更换新曲轴及大小轴瓦等机件后,使用不到一个月又出现烧瓦。对磨损严重的Ⅰ缸连杆轴颈进行修磨后,配上加大0.5 mm的连杆瓦。但运转仅十多小时就再次烧瓦,拆开后发现 A WD615 diesel engine, due to improper use of crankshaft bush. Replacement of the new crankshaft and the size of bearings and other parts, the use of less than a month there have been burning tiles. Severe wear on the I-cylinder connecting rod neck grinding, coupled with a 0.5 mm increase connecting rod. However, the operation is only burning more than 10 hours, disassembled and found