近幾年來，買車的人越來越多，只要有車以后對于車的保養(yǎng)是非常的重要的，汽車都是有一定的時間需要進行維修的，這樣的話才能讓汽車使用的壽命會更長久一些。但是有一些汽車維修公司的資質(zhì)有限，對于汽車的維修會走入維修的誤區(qū)之中。小編今天就為大家介紹汽車維修中常見和幾個維修誤區(qū) 。
In recent years, more and more people buy cars. As long as there is a car after the maintenance of the car is very important, the car has a certain time to repair, so that the life of the car will be longer. However, some automobile maintenance companies have limited qualifications, and the maintenance of automobiles will go into the wrong area of maintenance. Today, Xiaobian will introduce some common mistakes in automobile maintenance.
其表現(xiàn)主要有以下10種：1、滑動軸承的軸瓦必須刮削。而現(xiàn)代汽車，尤其是小型發(fā)動機，其曲軸軸承和連桿軸承上軸瓦的耐磨合金涂層很薄，絕不允許刮削，只能按相應(yīng)的尺寸選配。如沒有合適尺寸的曲軸承，則必要時可用基孔制的方法磨削曲軸，以求得合適的配合間隙。
Its main performance is as follows: 1. Sliding Bearing Bush must be scraped. In modern automobiles, especially small engines, the wear-resistant alloy coatings on the bearing bushes of crankshaft bearings and connecting rod bearings are very thin, so scraping is not allowed. They can only be selected according to the corresponding size. If there is no crankshaft bearing of suitable size, the crankshaft can be grinded by means of base hole system if necessary to obtain suitable fit clearance.
2、發(fā)動機水溫怕高不怕低。其實現(xiàn)代汽車發(fā)動機水溫偏低危害很大，會使混合氣燃燒不充分，功率降低，油耗增加，并造成潤滑不良，還會引起排放超標(biāo)。
2. Engine water temperature is afraid of high but not low. In fact, the low water temperature of modern automobile engine is harmful, which will cause insufficient combustion of mixture, lower power, increase fuel consumption, bad lubrication and excessive emissions.
3、氣門間隙大點比小點有勁。其實氣門間隙大，氣門升程孝開度不夠，使進氣量不足或排氣不暢，恰恰降低了發(fā)動機功率。
3. The larger valve clearance is stronger than the smaller valve clearance. In fact, the large valve clearance, valve lift filial opening is not enough, so that insufficient intake or exhaust is not smooth, it just reduces the engine power.
4、加機油愈多愈好。其實機油加多了對發(fā)動機照樣造成危害，斜置式發(fā)動機和V型發(fā)動機尤甚。它即增加曲軸、連桿的轉(zhuǎn)動阻力，又使其飛濺到缸壁上的機油增多，造成燃燒室積炭增加。所以機油加多了，會降低發(fā)動機功率，增加磨損，也會引起排放超標(biāo)。
4. The more oil you add, the better. As a matter of fact, the increase of engine oil does harm to the engine, especially the oblique engine and V-type engine. It not only increases the rotational resistance of crankshaft and connecting rod, but also increases the amount of oil splashed on the cylinder wall, resulting in increased carbon deposition in the combustion chamber. Therefore, more oil will reduce engine power, increase wear and tear, and cause excessive emissions.
5、空轂潤滑不可靠。認(rèn)為輪轂內(nèi)塞滿潤滑脂，可保證輪轂軸承的潤滑，只在軸承上涂覆潤脂的空轂潤滑不保險，必須把輪轂中間的空隙裝滿潤滑脂。其實這樣做不但浪費潤滑脂，而且影響軸承散熱，對軸承的潤滑有害而無利。
5. Empty hub lubrication is unreliable. It is considered that the lubrication of hub bearings can be guaranteed by filling the hub with grease. It is not safe to lubricate the empty hub coated with grease only on the bearing, and the gap between the hub must be filled with grease. In fact, this not only wastes grease, but also affects the heat dissipation of bearings, which is harmful to the lubrication of bearings.
6、制動好壞看拖櫻制動拖印說明車輪已經(jīng)抱死，而現(xiàn)代汽車恰恰要求車輪不能抱死，為此專門安裝了防抱死裝置。車輪一旦抱死，汽車的轉(zhuǎn)向失靈，車輪滑移，極易發(fā)生故障，所以并不是拖印越長越好。
6. The braking quality of dragging cherry brake Trailer indicates that the wheels have been locked, while modern automobiles require that the wheels should not be locked, so anti-lock brake device is specially installed. Once the wheels are locked, the steering of the car will fail and the wheels will slip. It is very easy to break down, so the longer the drag printing is, the better.
7、斷電器觸點間隙小點好。其實觸點間隙過大，觸點閉合時間短，使點火線圈一次側(cè)電流減小，引起高壓火花弱，從而造成發(fā)動機不易起動。
7. The contact clearance of the breaker is small. In fact, the contact clearance is too large and the contact closing time is short, which reduces the primary side current of the ignition coil and causes the weak high-voltage spark, thus making the engine difficult to start.
8、點火提前角或噴油提前角寧大勿校點火提前角過大，易引爆燃。發(fā)動機產(chǎn)生爆燃，對活塞損害極大，嚴(yán)重影響其使用壽命，且發(fā)動機的起動阻力增大。
8. Ignition advance angle or injection advance angle should not be too large, so it is easy to ignite. The engine produces deflagration, which causes great damage to the piston, seriously affects its service life, and increases the starting resistance of the engine.
9、緊固螺栓寧緊勿松。其實汽車各部件的螺栓，根據(jù)直徑、螺距及用途，其擰緊力矩大小均有相應(yīng)的規(guī)定值。達不到規(guī)定值的螺栓會松脫固然不好，但盲目增大擰緊力矩會使被緊固的零部件變形，并造成螺桿伸長，螺紋變形甚至斷裂。
9. Fastening bolts should be tightened rather than loosened. In fact, according to the diameter, pitch and use of the bolts of various parts of the automobile, the tightening moment of the bolts has corresponding stipulated values. It is not good that the bolt that can not reach the prescribed value will loosen, but blindly increasing the tightening moment will deform the fastened parts, and cause the elongation of the screw, thread deformation and even fracture.
10、汽車維護時拆開檢查才放心。隨著制造水平的提高，現(xiàn)代的汽車零部件壽命已大大延長，隨意拆檢勢必破壞已經(jīng)磨合好的配合狀態(tài)。在汽車故障不解體檢測技術(shù)日臻完善的今天，如果沒有發(fā)現(xiàn)部件或總成具有明顯的故障時一般不要拆檢。
10. It's not until the car is disassembled and inspected during maintenance that you can rest assured. With the improvement of manufacturing level, the service life of modern automotive parts has been greatly prolonged, and random disassembly and inspection is bound to destroy the running-in state. In today's automobile failure detection technology is becoming more and more perfect, it is generally not necessary to disassemble and inspect components or assemblies without noticeable faults.
Above is the common misunderstanding in automobile maintenance. I hope it will be helpful to you. Where can Jinan have BMW automobile maintenance and other related contents? You can click to consult: http://www.fmghkd.cn/www.fmghkd.cn/http://www.fmghkd.cn/http.com/www.
