推荐回答（2个）
一般情况下，汽车曲轴油封分为前油封和后油封，曲轴前油封套皮带最大那个盘，曲轴盘里面位置 ，而曲轴后油封在发动机与变速箱连接处里面飞盘里。
当汽车曲轴油封出现漏油现象的时候，我们首先需要分辨下是前油封还是后油封出现了问题，这个相对比较容易。如果驾驶者发现汽车的护板上面有渗漏的机油，而且在检查后发现半轴油封出现损坏，而且油底周围和压缩机表面都要机油，这是首先可以用鼻子闻闻看机油的味道进行一个基本的判断。
一般来说汽车的齿轮油都会有一股明显的臭味，而汽车的机油就没有明显的味道，如果检查确定渗漏的都是汽车发动机的机油，那么可以确定渗漏的部位是汽车曲轴后油封了。
如果漏油比较严重的话，我们可以：
1、车主如果有可以更换的汽车配件的话，这是就需要及时对汽车曲轴油封进行换新，但是如果没有汽车的备用物件，那么我们就这样处理。卸下最后的一道曲轴主轴承盖，把石墨石棉条从曲轴主轴承盖上小心翼翼地取下，使用涂有一层黄油的石棉线平垫在油封凹槽里面，然后将取下来的石墨石棉条按照原本的模样压在石棉线上，在完成以后暂时可以勉强使用一小段时间，然后开到维修店维修。
2、马上向曲轴箱注入部分汽车机油，之后快速将汽车驾驶到最近的维修站进行维修解决。望采纳，谢谢！
在装配时将瓦盖、瓦座(第七道主轴承)接触面清洗干净，使之贴合。密封条装人后槽底应无间隙，盘根沿整个圆弧面上应高出0.3一0.4mm左右。严格控制第七道主轴瓦的配合间隙，后主轴承盖两边油封条(木条)应嵌人到底，要求无间隙。必要时还应在瓦盖接触面涂上橡胶液以防漏油。 为解决曲轴油封漏油，现生产的发动机装用的是分开式橡胶后油封。安装方法应严格按照工艺要求:首先把油封槽擦洗干净，在槽侧面涂一簿层密封胶，并注意安装方向，油封侧面中开有槽的一面应朝向发动机的六缸一侧。油封装入后，应在油封唇口之间的空槽内加满润滑脂，再在油封对口面涂一薄层密封胶。同一个油封的两个半圆件，必须装于同一台发动机上，以免圆形件被破坏，使接处不能吻合而影响封油效果。
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