一台收割机用X6105柴油发动机工作时,第三缸排气门杆折断掉入气缸,捣坏该组气缸盖,经修复后,工作基本正常,但后来又出现过气门摇臂折断等小故障(一、六缸出现频率较多)。随着时间的推移和修理次数的增多,该机车排气管冒黑烟现象愈演愈烈,最终机车又一次瘫痪,情况是第一、六缸气门摇臂折断、第一缸气门脱落,捣坏气缸盖及活塞。打开正时齿轮盖,正时齿 A harvester with X6105 diesel engine, the third cylinder exhaust valve rod broken off into the cylinder, the group smashed the cylinder head, the repair, the work is basically normal, but then there have been valve rocker broken broken glitches (One, six cylinder appear more frequently). As time goes on and the number of repairs increases, the locomotive exhaust pipe smoke intensified, the final locomotive paralyzed again, the situation is the first, six-cylinder valve rocker arm off, the first cylinder valve off, pound cylinder head And the piston. Open timing gear cover, timing gear