A call from a loss-fixer of a company reflected a case: a Harvard H5 off-road vehicle had a rear-end accident, and the front of the vehicle was seriously damaged. In the loss determination link, the repair shop removed the parts on the front of the accident car and found that it could not shake the crankshaft.
The repair shop thought that the inside of the engine could be damaged and requested a complete disengagement of the engine.
After inspection, the car's condenser, radiator and fan were seriously damaged in the accident impact, resulting in backward displacement and squeezing into the engine, and the appearance of the engine body did not have serious damage. But it is also true that the engine crankshaft cannot be shaken.
The repair shop believed that the inside of the engine was damaged and asked to disassemble the engine.
How do you think the accident was handled?
When you first understand, if the crankshaft of an engine cannot be shaken, what are the reasons?
1. The transmission is not placed in neutral gear.
2. The spark plug of the gasoline engine has not been removed.
3. The injector of the diesel engine has not been removed.
4. There is water in the cylinder.
5. Linkage deformation.
6. There is a foreign body stuck in the cylinder (such as the valve that falls in).
7. The connecting rod is broken.
8. The piston expansion is stuck in the cylinder.
9. The spindle journal is deficient in oil lubrication and is locked.
10. The connecting rod shaft diameter is deficient in oil lubrication and is locked.
11. The moving member in the engine is stuck by foreign objects (such as chain, camshaft, starter, etc.).
12. The external accessories of the engine (generator, compressor, booster pump, etc.) are stuck by foreign objects, deformed or other reasons cannot be rotated, resulting in the engine cannot be rotated.
13. The crankshaft is seriously deformed.
All of the above is to cause the engine crankshaft to not shake.
If you dismantle the engine without doing a basic check, there are three disadvantages:
1, dismantling fees, disposable accessories, accessories costs are already a large amount of expenditure. If it is a high-end car, the three costs of dismantling fees + disposable accessories + accessories fees are usually as high as tens of thousands.
2. Moral hazard that may exist after disassembly (parts expansion, package adjustment).
3, the engine disassembly after reassembly, limited to the repair party process requirements can not meet the conditions of the manufacturer's production, so after the engine disassembly and assembly, it will often lead to the performance of the engine, the service life of the problem.
Based on the above considerations, Teacher Hong informed the loss fixer to do the investigation first. The last problem occurred in the booster pump
< h1 class="pgc-h-arrow-right" > case</h1>
What happened:
Ningxia Yinchuan Jinfeng District Traffic Police Second Brigade jurisdiction one after another reported that a traffic accident occurred in front of the Ximen Cinema in XX Community where a Jetta car collided with a Mercedes-Benz car holding a temporary number plate, in which the policeman was injured.
(1) Road conditions
The north side of the accident site is XX Community, the south side is an industrial park, the road section has no effective video surveillance, the road has no sign line, the road is 15 meters wide, less than 500 meters from the main entrance of the community, and there are fewer vehicles and pedestrians.
(2) The basic situation of the vehicle
1. Mercedes-Benz sedan is a second-hand car, holding a temporary number plate in Gansu, indicating that the vehicle has just been mentioned from Gansu to Yinchuan, and the inquiry learned that the vehicle only underwrites compulsory insurance.
2. Jetta car, underwritten by Dadi Insurance Company, vehicle insurance is more complete.
(3) Accident form
The Mercedes Benz sedan goes straight from east to west, and the Jetta sedan drives from north to south to the intersection and turns east. Jetta sedans are clearly driving in the opposite direction after turning. The vehicles of the two sides collided, and the owner of the Jetta sedan took the initiative to admit to driving in the opposite direction and was willing to bear full responsibility for the accident.
(4) Personnel situation
Someone at the scene claimed to be the owner of the Jetta car and was entrusted by the driver to the scene of the accident to deal with the accident. The driver of the Jetta car went to the hospital for physical injury due to the collision and the explosion of the airbag, and it was confirmed that the four teeth of the Jetta driver were damaged to varying degrees. When a Mercedes-Benz sedan is involved in an accident, the vehicle is also the driver alone.
< h1 class="pgc-h-arrow-right" > suspicious point analysis</h1>
1. The trunk of a Mercedes-Benz sedan has dozens of motor vehicle registration certificates and vehicle keys, indicating that its owner or driver is an inverted used car.
2, the rear wheel of the two cars does not have any brake marks, of which the front wheel of the Jetta sedan vehicle has obvious point brake marks, but the length is less than 0.6 meters, indicating that the driver has a psychological change before the collision, instinctive braking, but the two cars have collided in an instant.
3. The two cars are tightly glued together after the collision, indicating that the Mercedes-Benz sedan was very slow or in a stopped state before the collision. If the Mercedes-Benz sedan is too fast, it is impossible for the two cars to stick together after the collision, and the reaction of the force will make the Jetta sedan with less weight retreat, or the two cars move in the opposite direction at the same time. Explanation (Not all two cars sticking together is a case of insurance fraud, sometimes the two cars will stick together after the collision when the vehicle changes lanes or turns, but the tires will leave obvious brake or lateral movement marks after the collision of these accident vehicles).
4. The collision part of the front bumper of the Jetta sedan and the right headlight of the Mercedes-Benz sedan have scratch marks (horizontal stripes), and the two cars are extrusion marks after the front collision, so it is determined that the accident is a secondary collision. (It is recommended that the claims adjuster collect and sort out the collision traces more, and if you look at them more, you will find what kind of collisions and what kind of traces will be formed, and the authenticity of the case will be greatly reduced when the traces do not match).
5, before the collision of two cars, each car on the driver of one person, the intersection line of sight is good, from south to north when you can see the road surface situation on the east side of the road, so the collision is not common sense. It confirms the saying that everyone often says, "When things go wrong, there will be demons." ”
<h1 class="pgc-h-arrow-right" > method of identification</h1>
After the author arrived at the scene, he did not say a word to the parties within five minutes, but only investigated the traces on the scene and the traces on the tires of the vehicle, and took pictures of all the traces with a camera to fix the evidence, which was intended to exert psychological pressure on the parties. Sometimes deliberately telling the parties some unreasonable places on the scene is also a good way to exert psychological pressure.
After the investigation was completed, the owner called the jetta car driver to the scene, and the jetta car driver and the Mercedes-Benz car driver were briefly questioned separately and pointed out the doubts, and the unreasonable places after the collision of the two cars were said in a single-handed manner.
At the scene, I had the Mercedes driver punch me in the right chest, and while the driver hit me, I instinctively tightened my muscles and punched me hard, and asked the driver to say how it felt to hit me. The experimental method made the mercedes-Benz car driver completely collapse psychologically, and after a contest, the drivers of both sides voluntarily gave up compensation.
Wang Mou, who originally did the second-hand car business, bought a second-hand Mercedes-Benz at a low price, but there was a problem with the right front suspension of the vehicle, and Wang did not want to repair the vehicle himself, so he found his good friend Liu Mou, and the two carefully designed the traffic accident.
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