发动机水温升高,副水箱往外喷水是什么问题?

2024-11-08 22:33:50
推荐回答(5个)
回答1:

回答2:

发动机水温升高,副水箱往外喷水属于汽车发动机过热喷水的情况,是常见的正常现象。

发动机工作时长时间的水循环会造成发动机冷却系统的冷却液慢慢流失,导致水箱缺水,要是车主没有及时检查发现并添加对冷却液进行添加,这样就容易导致发动机水温过高。

水箱连接水管断裂或者连接不严都会造成漏水,这时候会使水循环受阻,严重的话引起发动机“开锅”。冷却风扇损坏或电线短路导致风扇工作或者冷却风扇转速慢,这样会导致发动机的热量没法散发出去,发动机的水温自然会升高。

扩展资料:

发动机水温升高介绍如下:

将节温器和温度计悬于盛水容器中,加热容器,察看节温器的初始开启温度,继续加热,记下节温器的全开温度,检查这两温度是否在合理范围内。停止加热,待水温降到82℃以下,检查节温器是否在关闭位置。否则,节温器需修理或更换。

水冷发动机多采用吸风冷却。水箱两侧空气不能产生对流现象,除水箱散热风道处相通外,其它部分均应隔断。不容忽视的是,很多机器使用一段时间后,阻隔材料老化脱落严重。

参考资料来源:凤凰网-车辆解暑有妙招 水温偏高应尽快停车

参考资料来源:凤凰网-汽车水温过高怎么办?别慌,这样处理就行了

回答3:

  • 原因大致有三种:一是过热,二是堵塞,三是气水相通。

  (1)过热。过热喷水是一种常见现象.发动机温度过高,水箱内的水沸腾,大量往外喷水、气,稍不注意会把人烫伤.造成过热的因主要是水箱缺水、节温器失灵、散热不好、百叶窗失效等.
  (2)堵塞.堵塞部位多为水箱堵塞或出水管被吸扁。堵塞不严重时,踏下油门时不喷水,松开油门时喷水。水箱完全堵塞时容易发现,而轻微堵塞时不易发现。汽车在冬季时要加注防冻液,由于防冻液有腐蚀性或水质不净等,造成水箱散热管堵塞。堵塞以后,水的通过截面减少很多,冷却水都积聚在上水室,加油时由于泵压较大,水仅能从没有完全堵死的散热管中少量通过,松油门时积聚在上水室的水就从加水口喷出。如果发现水箱喷水,可用手抚摸水箱的温度,一般下水室稍低,上水室稍高,差别不太大.若有明显差别,可判断为水箱堵塞,这时应拆下水箱检查.  
  有些汽车水箱的出水管用特殊制造的胶管,里面包有钢丝,使用一段时问后,由于强度减弱或断裂,在加油时容易把管子吸扁,增加进水阻力,水流不进水泵,面缸套的水都积聚在上水室,松开油门时随即返出。解决的办法:一是更换新件;二是在出水管内加弹簧. 
  (3)气水窜通。气水窜通就是发动机燃烧室的高压气体窜入水道,发动机水道里的冷却水在高压气体的作用下,使流经进水管流入水箱上水室的水量急聚增加,引起水箱喷水。气水窜通时,发动机转速加快则气体压水作用也加快,上水室进水量超出出水量而喷水,直到低于上贮水室平面为止,这时水箱缺水约在1/3左右,进面引起过热。  
       造成气水相通的原因很多,发动机结构不同,原因也各异:
  ①汽缸垫烧损或汽缸盖螺栓松动.由于缸垫或螺检松动造成燃烧室高压气体从缸垫缝隙进入水道,引起喷水.
  ②湿式缸套与缸体座孔配合不当,若缸盖不紧固,则缸套会上下窜动,这时高压气体可通过缸套缝隙窜动,这时高压气体可通过缸套缝隙窜入水道,引起水箱喷水。
  ③缸盖有裂纹。缸盖上有水道的地方发生裂纹时,也容易使高压气体窜入水道,引起水箱喷水。发现缸盖有裂纹一般应更换新件。

回答4:

水箱散热器加水口喷水,是发动机冷却系统的一种常见故障,首先检查皮带的松紧度。

回答5:

说明水循环系统里压力大,可以肯定的是水温已经超过100摄氏度,就是俗称的开锅了。如果加的是水,建议换成防冻液试试,如果加的就是防冻液,就要检查散热系统是否有故障。看看机油是否变质,如果机油呈奶白色并有泡沫,那就是缸垫出问题了,冷却液混入机油导致的。

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