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zhong jian chi lun zhou tao mo sun yin qi de gu zhang
Author(s): 
Pages: 28
Year: Issue:  12
Journal: Farm Machinery

Keyword:  气门间隙拖拉机发动机门罩正时齿轮连杆轴瓦喷油泵驱动齿轮供油时间齿轮轴上下左右时中;
Abstract: <正> 在修理拖拉机时遇到这样一种故障:一台红旗—50轮式拖拉机发动机(495型)运转时,从气门罩处传出"稀哩哗啦"的噪声,发动机冒黑烟、功率下降、油耗增加。更换缸套、活塞、活塞环、连杆轴瓦,并检查了气门及气门座,调整了气门间隙,故障仍没排除,而且气门间隙经常变化。根据这些现象,又对正时齿轮
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