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    有关汽车维修的一些小常识
    2022-1-8 10:17:00

    汽车维修小常识

    Car maintenance tips

    1、盲目拆掉发动机节温器

    1. Remove the engine thermostat blindly

    如果因发动机温度高而盲目拆除节温器,冷却液只能进行大循环,不能调节冷却强度,难以保证发动机在较适宜的温度下工作,反而使发动机经常处于低温状态下工作,造成发动机功率下降,磨损快,油耗增加。如果发动机节温器发生故障检修或更换之后,发动机温度还高,就应检修冷却系统的其他部位,不能拆除节温器。

    If the thermostat is removed blindly due to the high engine temperature, the coolant can only carry out large circulation and cannot adjust the cooling intensity. It is difficult to ensure that the engine works at a more appropriate temperature. On the contrary, the engine often works at a low temperature, resulting in reduced engine power, rapid wear and increased fuel consumption. If the engine temperature is still high after troubleshooting or replacement of the engine thermostat, overhaul other parts of the cooling system and do not remove the thermostat.

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    2、发动机温度怕高不怕低

    2. The engine temperature is not afraid of high, not afraid of low

    有些人认为行车时发动机温度怕高不怕低。其实,发动机温度低时危害性也很大。应根据汽车使用说明书规定的正常温度行车,才能保证发动机的使用寿命。

    Some people think that when driving, the engine temperature is afraid of high and not afraid of low. In fact, when the engine temperature is low, it is also very harmful. The service life of the engine can be guaranteed only by driving at the normal temperature specified in the vehicle operation manual.

    3、水泵风扇皮带越紧越好

    3. The tighter the water pump fan belt, the better

    皮带越紧并非越好。皮带过紧不仅会使其拉长或断裂,缩短皮带的使用寿命,而且还会因拉力过大,导致发电机轴、水泵轴变形弯曲和轴承的早期损坏。汽车发动机风扇皮带的松紧度应符合技术要求,一般正常皮带装配时挠曲度为10-15mm为宜。

    The tighter the belt, the better. Too tight belt will not only lengthen or break the belt and shorten the service life of the belt, but also lead to deformation and bending of generator shaft and water pump shaft and early damage of bearings due to excessive tension. The tightness of automobile engine fan belt shall meet the technical requirements. Generally, the deflection during normal belt assembly is 10-15mm.

    4、发动机用怠速升温

    4. Engine idle temperature rise

    用怠速升温时,由于转速较低,机油泵不能较快地将润滑油压入各润滑表面,油压也低,使发动机各运动机件在干摩擦或半干摩擦状态下工作;燃油因低温雾化不良,使未燃烧的燃油窜入曲轴箱,冲刷掉缸壁上的油膜,也会加速机件的磨损。所以,发动机启动数秒后,应用快速升温,提高发动机的润滑条件。

    When warming up at idle speed, due to the low speed, the oil pump can not quickly put the lubricating oil pressure into each lubricating surface, and the oil pressure is also low, so that all moving parts of the engine work under dry friction or semi dry friction; Due to poor low-temperature atomization of fuel, unburned fuel flows into the crankcase and washes off the oil film on the cylinder wall, which will also accelerate the wear of parts. Therefore, after the engine is started for a few seconds, rapid temperature rise shall be applied to improve the lubrication conditions of the engine.

    5、用喷灯烘烤油底

    5. Bake the oil pan with a blowtorch

    冬季用喷灯烘烤油底,不但会使机油中的添加剂发生化学变化,失去原有的性能,而且还会使机油胶结、油底变形,容易引起火灾。好的做法是根据当地冬季的气温选用相适应的机油。在有条件的地方,一定要把车辆停放在有保温设施的车库内。

    Baking the oil bottom with a blowtorch in winter will not only make the additives in the engine oil chemically change and lose the original performance, but also make the engine oil cemented and the oil bottom deformed, which is easy to cause fire. A good practice is to select appropriate engine oil according to the local winter temperature. Where conditions permit, the vehicle must be parked in the garage with thermal insulation facilities.

    较先进的清理方法是超声波清理法和喷核清理法,但用得更多、更简单的方法是物理清理法和化学清理法。这两种方法也可兼用。

    The more advanced cleaning methods are ultrasonic cleaning and nuclear spraying cleaning, but the more and simpler methods are physical cleaning and chemical cleaning. Both methods can also be used.

    本文由济南欧宝汽车维修为您提供,我们的网站是:http://www.oubaoqx.com/我们将以全心全意的热情为您提供服务,欢迎您的访问

    This article is provided by Jinan Opel automobile maintenance. Our website is: http://www.oubaoqx.com/ We will serve you with wholehearted enthusiasm. Welcome to visit