汽车润滑系的常见故障与排除.docVIP

重庆工商职业学院汽车学院 PAGE \* MERGEFORMAT 18 毕业设计（论文） 题 目： 汽车润滑系统的故障诊断与维修 指导教师： XXXXX 姓 名： XXX 学 号： XXXXXX 专 业： 汽车检测与维修 班 级： 检测一班 起止日期： 2015年11月6日 至 2015年12月1日 教务处 制 摘 要 本文讲述了发动机润滑系组成及功用，润滑油的选用及更换，润滑系统出现常见故障的现象，常见故障的分析与诊断以及一些润滑系统故障的维修案例。让我们了解了发动机润滑系故障的一些故障现象以及排除故障的方法。随着汽车科技的发展，汽车的结构越来越复杂，我们只有掌握更多的知识和实践经验，才能更好地运用检测仪器快速准确地查找汽车的故障原因，并把故障排除。 关键词： 润滑系 功用 常见故障 排除方法 维护 目 录 摘 要·····························································Ⅰ 前 言·····························································3 1概述·····························································4 1.1汽车发动机润滑系统维修的重要性·································4 1.2汽车发动机润滑系统的工作原理及现实意义·························4 2润滑系统的组成及功用·············································5 2.1润滑系统的功用················································5 2.2发动机润滑系的组成············································5 2.3发动机的润滑方式··············································6 2.4发动机润滑系的油路············································7 3润滑系统常见故障诊断·············································7 3.1发动机机油压力过高············································7 3.1.1现象·······················································7 3.1.2原因分析···················································8 2.1.3诊断与排除·················································8 3.2机油消耗过大··················································8 3.2.1现象·······················································8 3.2.2原因分析···················································8 3.2.3诊断与排除·················································9 3.3机油变质······················································9 3.3.1现象·······················································9 3.3.2原因分析 ··················································9 3.3.3诊断与排除·················································10 4润滑系故障维修实例···············································10 4.1桑塔纳轿车在行驶过程中突然出现机油报警灯报警················