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有车一族福音 汽车维修与保养
发布日期:2024-02-07
  

中国轴承网】 

 近年来,有车一族逐渐增多,汽车需要定期维修保养,中轴网了解到一些车主和资质有限的维修中心,往往会走入维修误区,影响车辆的性能。其表现主要有以下10种:

    1、滑动轴承的轴瓦必须刮削。而现代汽车,尤其是小型发动机,其曲轴轴承和连杆轴承上轴瓦的耐磨合金涂层很薄,绝不允许刮削,只能按相应的尺寸选配。如没有合适尺寸的曲轴承,则必要时可用基孔制的方法磨削曲轴,以求得合适的配合间隙。

    2、轴承发动机水温怕高不怕低。其实现代汽车发动机水温偏低危害很大,会使混合气燃烧不充分,功率降低,油耗增加,并造成润滑不良,还会引起排放超标。

    3、气门间隙大点比小点有劲。其实气门间隙大,气门升程孝开度不够,使进气量不足或排气不畅,恰恰降低了发动机功率。

    4、加机油愈多愈好。其实机油加多了对发动机照样造成危害,斜置式发动机和V型发动机尤甚。它即增加曲轴、连杆的转动阻力,又使其飞溅到缸壁上的机油增多,造成燃烧室积炭增加。所以机油加多了,会降低发动机功率,增加磨损,也会引起排放超标。

    5、空毂润滑不可靠。认为轴承轮毂内塞满润滑脂,可保证轮毂轴承的润滑,只在轴承上涂覆润脂的空毂润滑不保险,必须把轮毂中间的空隙装满润滑脂。其实这样做不但浪费润滑脂,而且影响轴承散热,对轴承的润滑有害而无利。

    6、制动好坏看拖樱制动拖印说明车轮已经抱死,而现代汽车恰恰要求车轮不能抱死,为此专门安装了防抱死装置。车轮一旦抱死,汽车的转向失灵,车轮滑移,极易发生故障,所以并不是拖印越长越好。

    7、断电器触点间隙小点好。其实触点间隙过大,触点闭合时间短,使点火线圈一次侧电流减小,引起高压火花弱,从而造成轴承发动机不易起动。

    8、点火提前角或喷油提前角宁大勿校点火提前角过大,易引爆燃。发动机产生爆燃,对活塞损害极大,严重影响其使用寿命,且发动机的起动阻力增大。

    9、紧固螺栓宁紧勿松。其实汽车各部件的螺栓,根据直径、螺距及用途,其拧紧力矩大小均有相应的规定值。达不到规定值的螺栓会松脱固然不好,但盲目增大拧紧力矩会使被紧固的零部件变形,并造成螺杆伸长,螺纹变形甚至断裂。

    10、汽车维护时拆开检查才放心。随着制造水平的提高,现代的汽车轴承零部件寿命已大大延长,随意拆检势必破坏已经磨合好的配合状态。在汽车故障不解体检测技术日臻完善的今天,如果没有发现部件或总成具有明显的故障时一般不建议拆开,有损汽车轴承。

      中国轴承网希望有车一族维修与保养是不再走进汽车轴承维修与保养的误区。
基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-08-18 00:09:28 HTTP/2.0 GET : https://m.zcwcn.com/news/show-12653.html
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  4. 会话信息 : SESSION_ID=f60f9021c10c6a978d418731b3aa9c33
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  15. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `is_recommend` = 0 ORDER BY `id` DESC LIMIT 0,10 [ RunTime:0.000418s ]
  16. SHOW FULL COLUMNS FROM `zzw_news_cat` [ RunTime:0.001335s ]
  17. SELECT * FROM `zzw_news_cat` WHERE `parent_id` = 0 AND `deltime` = '' [ RunTime:0.000485s ]
  18. SELECT COUNT(*) AS think_count FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 84 [ RunTime:0.023629s ]
  19. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 84 ORDER BY `id` DESC [ RunTime:0.027322s ]
  20. SELECT COUNT(*) AS think_count FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 85 [ RunTime:0.006147s ]
  21. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 85 ORDER BY `id` DESC [ RunTime:0.006788s ]
  22. SELECT * FROM `zzw_config` WHERE `id` = 2 LIMIT 1 [ RunTime:0.000753s ]
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