1）故障现象
①此响声一般出现在发动机大修后的走合期。即发动机在怠速运转时出现“嗒嗒嗒”声，略像活塞敲缸的声音，而温度升高后，响声不但不消失，反而稍重一些，且有时还带有“吭吭”的声音，发动机稍有抖动现象；
②断火试验仍有响声，但严重拉伤后也出现活塞敲缸响，不过此时做断火试验时响声有减弱；
③拉伤到一定程度时，出现发动机突然熄火现象；
④严重时，从加机油口处往外冒烟。
2）故障原因分析
①活塞与缸壁间隙过小或活塞膨胀系数过大；
②活塞椭圆度不足或反椭圆；
③活塞头部尺寸大，活塞环背隙或端隙过小；
④活塞销与销座孔配合过紧，致使活塞变形胀大；
⑤机油不足或润滑孔道堵塞，润滑不良；
⑥发动机缺水，温度过高；
⑦发动机长时间高速运转，尤其在走合期内；
⑧全浮式活塞销未装锁环，半浮式活塞销固定螺钉未拧紧，活塞销轴向窜动拉缸。
3）检查与修复
①发动机运转中，出现类似敲缸的现象，但声音不是随发动机温度的升高而减弱消失，可初步断定为拉缸响声；
②拆下汽缸盖，检查缸壁的拉伤情况，并找出拉伤原因。如只是由于活塞与缸壁配合较紧而轻微拉伤时，可稍磨一下缸壁，仍可用原活塞装复。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/22937.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
雷克萨斯570霸气侧漏的内饰升级，旗舰车型的越野就是厉害
雷克萨斯LX570作为兰德酷路泽的豪华版，一直备受越野人士喜爱，毕竟三大件没有任何区别，连零配件80%都是通用的。拥有着酷路泽的强壮肌肉，再加上本身的豪华内饰，这就是雷克萨斯LX5…
-
当车跑5万公里后，有些事做，可惜内行人一般都不会说！
有许多车主在日常用车的时候，都拥有这样一个毛病，认为车辆只要加油能跑就可以了，日常方面的一些养护，可以称得上是无从谈起，虽然说对于一些新车来说，这样做似乎并不过分，但随着日积月累，…
-
“您违反了禁止标线指示”，知道是什么吗？
别犹豫了，速速点↑南方谈交通关注我们 有时候我们收到交警部门短信 “……机动车违反禁止标线指示的……” 很多小伙伴都不知道是什么意思 有些懵圈… 快跟着小编一起往下看看吧 首先看小…
-
全新骏派A50_轿车,中国第一汽车集团,原汁原味的德系SUV,设计,天津,夏利
虽然现在的汽车时候里面销量最后的汽车就是SUV，但是说实话很多的消费者们买汽车的时候还是会想着买轿车，毕竟轿车的车身非常的小，而且开汽车出去的时候会非常的方便啊，不然的话汽车车身很…
-
买车需谨记，2019年投诉最严重汽车品牌是这些，国产仍让人堪忧？_斯巴鲁汽车,美国汽车,大众汽车,雷克萨斯汽车,马自达,捷豹,路虎,福特汽车,菲亚特,丰田汽车,运动型多用途车,标致雪铁龙,BMW,东风雪铁龙,奔驰,标致汽车,本田技研工业,奥迪,别克汽车,雪佛兰,森林人,保时捷,iPhone,华为Mate30,皮卡车,沃特·P·克莱斯勒,吉普车,道奇汽车,阿尔法,阿尔法·罗密欧
“ 那天朋友几个吃饭，酒过三巡开始闲扯买手机的事。朋友满脸通红的说：再换手机，说啥一定买个华为mate30 5G版…… 转天他就换了个 iPhone 11 （我去无情）…
-
韩国街头看到一台保时捷，全球限量918辆，跟拉法齐名
提起保时捷，相信不少车迷朋友应该都知道这个跑车品牌。保时捷跑车一直给人性价比很高的印象，虽然排量不大，但性能表现却不输大排量车型，最近，有朋友在韩国的街头看到一台保时捷车型，该车还…
-
开车小知识：6大技巧教你安全地踩 Brake！
开车小知识：如何正确又安全地踩 Brake ！ 农历新年即将来临，估计不少游子应该会和小编一样准备开长途车回乡过年，相信届时路上交通流量应该会增加不少；能够开车载着家人出门拜年或游…
-
成为驾驶高手应该怎么做?只需这5点,网友:后悔没早知道
现在拥有汽车的人普遍增多，但是在汽车安全这方面并没有做好。我们在考驾照的时候所学到的东西，也并没有起到什么作用，今天小编就来告诉大家一些成为驾驶高手的一些小技巧。 第一点是打开转弯…
-
开车到什么程度表示你已脱离新手行列？不看驾龄，看这几点_交通
现在有很多的人都开上了汽车，而现在我国汽车销售行业发展也是越来越好了，据不完全统计，我国汽车现在保有量也差不多都达到了3亿多辆，现在在道路上我们也是能够很明显的看到汽车越来越多了，…
评论列表（33条）
The post provoked a lot of thought and taught me something new. Thank you for such engaging content.
The breadth of The knowledge is amazing. Thanks for sharing The insights with us.
The finesse with which you articulated The points made The post a true pleasure to read.
I appreciate the clarity and thoughtfulness you bring to this topic.
You tackle topics with such finesse, it’s like watching a skilled chef at work. Serving up knowledge with flair!
The information you’ve shared has been a revelation for me. Incredibly enlightening!
The insights add so much value to the conversation. I always learn something new from you.
Fantastic job breaking down this topic, like a demolition crew for my misconceptions.
Each post you write is like a key that unlocks a little more of the world’s mystery.
Thank you for the hard work you put into this post. It’s much appreciated!
“I must commend you on the outstanding quality of your post. The balance of well-researched information with your personal insights made it incredibly rewarding to read. Your dedication to excellence is evident in every word. I’m so glad I found your blog!”
The Writing is a constant source of inspiration and knowledge for me. I can’t thank you enough.
Reading The work is like gazing at a masterpiece; every detail contributes to a breathtaking whole.
The analysis is like a well-crafted movie—engaging, enlightening, and leaving me thinking long after it’s over.
The way you articulate The thoughts is as refreshing as the first sip of coffee in the morning.
The insights are like keys, unlocking new perspectives and ideas I hadn’t considered.
The knack for making hard to understand concepts readable is something I greatly admire.
The insights add so much value to the conversation. I always learn something new from you.
This was a great enjoy reading—thought-provoking and informative. Thank you!
I’m amazed by the depth and b enjoy readingth of your knowledge. Thanks for sharing!
This is one of the most comprehensive articles I’ve enjoy reading on this topic. Kudos!
Every article you write is like a new adventure. I’m always excited to see where you’ll take me next.
I’m officially a fan of The work. It’s like having a crush, but intellectually stimulating.
You’ve presented a complex topic in a clear and engaging way. Bravo!
I’m so grateful for the information you’ve shared. It’s been incredibly enlightening!
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Your thoughtful analysis has really made me think. Thanks for the great enjoy reading!
I always learn something new from your posts. Thank you for the education!
Your ability to distill complex concepts into enjoy readingable content is admirable.
Incredibly informative post! I learned a lot and look forward to more.
A masterpiece of writing! You’ve covered all bases with elegance.
I appreciate the unique viewpoints you bring to your writing. Very insightful!
Thank you for the hard work you put into this post. It’s much appreciated!