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
相关推荐
-
赛驰燃油添加剂燃油宝汽车除积碳节油宝汽油清洁剂油路清洗剂正品
推荐理由 买4送2发盒装【节能减排】多重净碳技术、有效去除发动机积碳,提升动力,促进燃烧,改善油品,长期使用,使发动机焕然一新。 此款商品正在进行限时活动,原来天猫售价28.8元,…
-
视频丨含着金汤匙 探影能成为家族爆款吗?
俗话说一山不容二虎,这句话落在汽车领域就不怎么灵验了。如今“双车战略” 已成为不少车企满足消费者多元化需求的 重要手段之一,利用同平台技术开发出不同侧重的车型,除了降低研发成本外,…
-
买了车才发现,现实和买车前所想的完全不同!扎心了老铁_自行车,自驾游,小说,旅行
“ 没买车前,经常羡慕那些有车一族们,尤其是车上坐着漂亮妹子的时候,总觉着有车之后自己的生活状态一定会发生特别大的改变,然而当自己实现买车梦想的时候却突然发现,现实并没…
-
皮卡新时代,C本就能开的新款寻星NX585皮卡房车,有颜有实力_皮卡车,房车,五十铃,五十铃D-MAX,设计,电磁炉,良心国货大赏,榻榻米,热水器
“ 零零柒又来和大家分享房车啦,相信大家已经接触到许多房车类型了吧,但是对于皮卡房车可能还很不了解呢,寻星房车作为从2017年发布第一款皮卡房车开始,凭着炫酷外观在皮卡…
-
滴滴CTO谈自动驾驶:有温度的服务不会被技术取代_滴滴打车,无人驾驶,技术,上海,新浪
“ 滴滴CTO、滴滴自动驾驶CEO张博在接受采访时表示,未来将在上海再部署30辆测试车,待测试成熟后将全面推广,“预计很快,不会太远”。他指出,针对自动驾驶,目前滴滴在…
-
颜值高、燃料费低,这三款外观年轻的SUV或许适合你
此前,我列举了三款新能源轿车并给大家算了个账,结果反响还不错。所以,今天我就借着余温来和大家聊聊那些后期燃料费较低的几款SUV。 本田CR-V 先别急着质疑我,因为我要说的并非是C…
-
丰田和比亚迪合作造电动车,又要搞“中国特供”这一套?
“ 一切为了中国市场。 ”文/宋双辉 在上个月丰田宣布与比亚迪达成电池合作之后,就有人猜测双方的合作可能不止电池这么简单,很有可能扩展到合作造电动车上。 甚至还有一张内部照片为证,…
-
都说德系车毛病多,让你看看这个最狗血的遭遇_汽车维修,原汁原味的德系SUV
这里有你不知道的汽车维修保养知识,更有那些假象背后的真实故事。如果你想成为一个真正的汽车达人,这里会是你补充知识的最好途径之一。关于汽车那些已知的、未知的、好奇的、懵懂的、你都可以…
评论列表(22条)
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!