Yao Yuan held the student ID, opened the driver's door and sat on one side. He was 1.8 meters tall, with his mother, and the delicious food at home was close to him. He was tall and big.

Director Ye touched his nose and said to Driver Yu, "Xiao Yu, if he causes other failures, I won't recognize it."

"He is a college student and is very familiar with this car, it's okay." Driver Yu said, "I took a sip of cigarettes hard.

Director Ye has read Yao Yuan’s student ID and has no doubt about Yao Yuan’s identity as a college student. As for whether Yao Yuan has this ability... he has already thought about it, and the county auto repair shop is not responsible for any problem. Instead, he hopes that Yao Yuan will cause other faults so that he can explain to his superiors.

Everyone has their own thoughts, but soon everyone's attention was focused on Yao Yuan.

But Yao Yuan skillfully checked the gear and handbrake, stepped on the brake pedal with his right foot, and twisted the key to ignite. The four-cylinder gasoline engine was "wiping" and the noise was relatively high and the water temperature was very low, which means that the car had been staying here for a long time.

This skillful action makes people have to suspect that this kid is an old driver.

After the fire broke out, the hydraulic pressure came up. Yao Yuan felt that the speed of the brake pedal was faster than normal, which meant that the brake system was abnormal. He repeatedly stepped on the brake, and the frequency went from slow to fast, and then from fast to slow, without the intention of stopping.

Master Liu frowned and said, "What's the use of stepping on this?"

"This kid wants to make a living, right?" After lunch, a young worker joked.

However, Master Liu quickly saw something and showed a thoughtful look, but he still couldn't figure out what Yao Yuan was going to do. Generally speaking, for this pure mechanical car, you need to constantly step on the brake pedal when adjusting the brake, and another person adjusts the tightness of the brake wire according to the amplitude of the pedal.

This is also an exhaust process.

However, this will not detect the fault of the brake system.

At this time, Liang Yaoming, on the 212 Jeep, pushed the door and wanted to get out of the car, and said fiercely, "I've cheated money and tricked me into the auto repair shop. I'll make you look good!"

He saw the license plate number and said in surprise, "Brother-in-law, look, it seems to be Director Li of the Farm Administration Bureau's car! I'll go and take a look!"

"Don't get out of the car!" Liu Yitang grabbed Liang Yaoming, shook his head and said, "Look at it first."

Yao Yuan knew about his torn shoes. If Yao Yuan yelled in front of his brother-in-law, his wife would eat and peel him up.

Liang Yaoming held back his anger and thought of his job, saying, "Brother-in-law, can the auto repair shop want me? The job of my sugar factory has not yet been hot..."

"I said there is no problem, there is no problem. Director Ye and I are... old friends."

...

Yao Yuan tried for several minutes, then stared at the odometer for a while, thinking about it.

After basically knowing it, he turned off the engine and got out of the car and asked, "Master Yu, does the brakes fail to work when driving on bumpy roads? Moreover, there should be many people sitting in the car."

"Yes, yes! That's right!" Driver Yu recalled carefully, and then his excited eyes glowed.

He had never told anyone, and he had not realized this special situation.

He smiled and Yao Yuan said, "But if you drive on a flat road or no load, there is no problem with the brakes, right?"

"Yes, yes! Good guy! If it weren't for the fact that I had been driving this car, I would have suspected that you had driven this car!" Driver Yu was even more excited.

Director Ye and his men were all stunned, and Master Liu's mouth twitched and twitched. After a few simple trials, he determined the fault, but he didn't find out anything, so the difference was determined.

Yao Yuan asked again, "Does this car often run mountain roads after buying it? And it's a dirt road with bad road conditions."

"Yes, yes, this car is so useful to run a bad road!" Driver Yu said arrogantly.

I think so, as for farms, there is no good road. Not to mention farms, there are only a handful of paved roads in Nangang City today.

Yao Yuan nodded slightly and said, "I know what the fault is, and I also know what went wrong."

"That's great! Then, then repair it quickly Comrade Xiao Yao. I have to wash the car when I go back. I will go to the airport to pick up the Hong Kong merchant tomorrow morning!" Driver Yu was so excited when he saw the sky with clouds and saw the blue sky.

However, Yao Yuan shook his head and said, "It can't be repaired."

Um?

Driver Yu was stunned and frowned. Suddenly, he came to his senses, "I know I know, I know, I... our unit pays for this repair fee!"

His eyes looked at Director Ye.

Director Ye also realized that this college student is really good at studying, which must be a good thing. He also understood Driver Yu's eyes and said quickly, "Comrade Xiao Yao, don't worry, our factory will pay the repair fee, and you...even if you work and study here, how about it?"

Yao Yuan shook his head and smiled, "Sorry, I really can't fix it."

After saying that, I will leave.

Director Ye was anxious and grabbed Yao Yuan's arm, "Comrade Xiao Yao stayed, stayed, everything was easy to discuss, right? In this way, you repair it, I will give you fifty dollars!"

The salary of the unit is only half a month.

Yao Yuan said helplessly, "Director Ye, it's not a problem with money, it's really impossible to repair it. I can tell you the cause of the failure and the faulty parts, and you can decide for yourself."

Director Ye was stunned and quickly reacted, "That doesn't work, that doesn't work, is it a fault you found, or it's better for you to repair it."

He naturally thought that Yao Yuan was trying to get angry.

Yao Yuan said, "It's really not possible to repair it."

"One hundred yuan!"

"I can't really practice it."

"five hundred!"

"It's not a matter of money..."

"One thousand yuan!" This was what Driver Yu called out. He seemed to have made up his mind and walked over step by step, saying firmly, "Xiao Yao, you have repaired the car, I'll give you one thousand yuan! How about it?"

Yao Yuan stopped talking, he was in a dilemma.

However, he is not trying to get up to his appetite, but he is really unable to practice!

This is a design defect of Mitsubishi's second-generation Pajero. Unless the manufacturer recalls for repairs, the problem cannot be solved from the root.

The distance between the load-sensitive valve at the rear of the car and the rear axle brake oil pipe is too small. When multiple people are driving on bumpy roads, the former will be pressed down and rubbed to the latter. Therefore, the brake oil pipe will become thinner and thinner until it breaks.

The reason why the brake door incident was not exposed until 2001 was that after driving a certain mileage, the brake oil pipe was worn out and the problem broke out.

Just now, Yao Yuan found that the odometer showed that the mileage was as high as 150,000 kilometers. Combined with the fact that this car had only been bought for more than a year, it was basically confirmed that it was a problem with the brake oil pipe.

In the last life, Yao Yuan studied this brake door incident that almost sent Mitsubishi Pajero off the altar and found an interesting phenomenon: Pajero in the plains broke out with brake defects later than Pajero used in the mountains.

This also indirectly proves that Mitsubishi did not fully consider the actual use under various terrain when designing it. You should know that this is an off-road vehicle.

Can Yao Yuan solve a problem that needs to be solved by returning to the factory?

He was not sure, so he honestly told them that there was no way to repair it. Not only him, but no repair shop in China could completely solve this problem. So he had given up his plan to make this money just now.

However, when Driver Yu offered a repair fee of 1,000 yuan, he hesitated. The price was really hard to refuse. As a reborn person, Yao Yuan was frustrated and was not sure that he could make a profit of just 1,000 yuan.

Driver Yu saw Yao Yuan hesitating and bit his teeth, saying, "I personally add two hundred more to you! Xiao Yao, this is half a year's salary!"

In order not to be criticized, Director Ye also took the initiative and said, "Our repair shop will give you another 300 yuan, how about it? Xiao Yao?"

call……

It's 1,500.

Yao Yuan made up his mind and said, "Okay!"

Just as everyone was relieved, Yao Yuan changed the subject and said, "But I said ugly things ahead. This fault was caused by the congenital defect of this car. I cannot completely solve it for the time being. I can only ensure that there will be no problems within two years."

"Two years? It's enough! This is enough!" I thought Yao Yuan said he couldn't guarantee that Driver Yu had completely relaxed in one breath.

No one noticed the "congenital defect" mentioned by Yao Yuan.

Driver Yu only had the important reception task tomorrow, and Director Ye was determined to solve the matter successfully and received praise from his superiors. Only Master Liu, who was standing by, listened carefully, and looked at Yao Yuan while thinking seriously.

It is actually very simple to solve the problem of brake failure. Repair the broken parts of the brake oil pipe or replace them. However, this cannot fundamentally solve the problem. After a period of friction, the fault will still occur.

Yao Yuan has a problem that he has been in his previous life - keeping in excellence and curing the problem.

Since they think it's okay to use it for two years, Yao Yuan won't go into details.

He was going to have a flashlight to jump out of the groove. Seeing this, Master Liu followed him and gave him a humble attitude of learning.

Yao Yuan saw it and said with a smile, "Master Liu. Look here, the sensor is here and the oil pipe is here, which looks normal. This is because the vehicle is empty. If there are multiple people on board, and the road is bumpy, the sensor is pressed down... You see, the brake oil pipe is damaged and oil seeped."

He touched it with his hand and found that the brake oil pipe at the place had been severely worn, a small crack appeared, and oil was slowly leaking out.

Master Liu's face turned red, and the oil and dust mixed together covered the damaged area. At first glance, there was no difference from the normal ones. Moreover, this location was very hidden. If it weren't for sure that there was a problem with the brake oil pipe, it would be really difficult to find out.

"How to solve it? Is it a package or a welding? We don't have spare parts." Master Liu humbly asked for advice.

Yao Yuan shook his head slightly and smiled, "The wrapping will increase the diameter of the brake oil pipe. Although it is more wear-resistant, it will cause squeezing, and the consequences may be more serious. The same is true for welding. There is only one way."

"Fix it back with spot welding and then grind it with sandpaper."

"Spot welding?" Master Liu's eyes were about to pop out, "A pipe wall is so thin that it can be worn at all, and it cannot be spot welding."

Yao Yuan smiled and said, "Is there an electric welding machine?"

"Yes." said Master Liu.

Although the factory is getting worse and worse, the equipment is complete.

"Then please help Master Liu," said Yao Yuan.

Master Liu also wanted to persuade him, but when he thought that he had found the fault in just two attempts, he immediately gave up his thoughts and quickly called his apprentices to pull the welding machine.

Yao Yuan learned the skill of electric welding from an eighth-level engineer. He stayed at a shipyard for the last life and saw that the eighth-level worker manually welded an important part of the LNG ship! That requires precise welding technology like welding ballistic missiles!

Although he only studied for a few months, it was easy to deal with this problem in front of him.
Chapter completed!