随着发动机技术的进步,车辆对柴油品质的要求越来越高,但目前市面上充斥了许多劣质柴油,这些油中含有大量的杂质颗粒。
这些杂质颗粒会对柴油机的工作性能和寿命产生极大危害,今天我们就来看一个真实的案例。
故障车型:解放天V
发动机:潍柴WP12.375E50
排放阶段:国四排放
故障现象:车辆抖动严重,加速时冒黑烟
根据维修师傅的经验,车辆冒黑烟,往往跟柴油有关。询问后,司机表示自己加油比较随意,一般是走到哪就在哪加,小油也加过。
但司机表示,自己之所以敢这么加油,是因为自己单独安装了滤清器,觉得滤清器会把燃油过滤干净。
维修师傅考虑修车从简到难,决定先检查进气管和空气滤芯,发现副厂滤芯严重脏污。
更换空气滤芯后情况好转一些,但还有冒黑烟现象,继续往下排查,打开数据流,数值正常,初步断定增压压力没问题。
观看各个气缸排气情况,发现六个气缸排气均不正常。此时怀疑喷油器故障。拆下喷油器检查,发现喷油器油嘴密封不严,造成泄露。
更换空气滤芯后情况好转一些,但还有冒黑烟现象,继续往下排查,打开数据流,数值正常,初步断定增压压力没问题。
观看各个气缸排气情况,发现六个气缸排气均不正常。此时怀疑喷油器故障。拆下喷油器检查,发现喷油器油嘴密封不严,造成泄露。
柴油滤清器是保护燃油系统最后的屏障。相对于传统燃油技术,共轨系统更高更精密,需要优质滤清器来保障发动机稳定的运行。
目前市场上滤清器品种杂乱,难分好坏,价格从几百到上千不等,质量差别较大。很多卡友反馈说自己在选购时经常是眼花缭乱。那到底什么样的滤清器才算是好的滤清器呢?
丨可以完美替代原车粗滤,全车只需安装一台滤清器。
丨具有独立疏水层,可以将燃油中的水完全分离出来。
丨含有高效加热模块,可利用整车回油温度辅助滤芯解冻。
丨支持5-10万公里超长保养周期,无需频繁更换。
优质滤清器价格可能较贵,但发动机维修的价格往往是优质滤清器价格的几十倍甚至更高,为了省小钱而花大钱,就得不偿失了。
原创文章,作者:cesifu,如若转载,请注明出处:http://www.cesifu.com/article/26700.html
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