"Then you also know about the valve mechanism?" Chen Shanhe asked curiously.
Jiang Shiyue immediately sold Yangyang, "My son said that. He also mentioned something about the valve train assembly and camshaft."
Chen Shanhe paused and took a moment to look at Yangyang, "Have you finished reading the notes?"
Yang Yang shook his head, "I only read half of it."
"Come here." Chen Shanhe waved Yangyang to his side and taught him on the spot while dismantling the diesel engine.
Chen Shanhe spoke and explained at the same time. His speaking speed was not slow, and his hand movements were even faster.
However, Jiang Shiyue felt that Chen Shanhe was teaching Yangyang more than teaching himself. Yangyang should know everything he said, but he just lacked practical experience.
"The valve train opens and closes the intake and exhaust valves in a timely manner according to the order in which the cylinders of the diesel engine operate."
"The valve train and valvetrain are two parts of the valvetrain."
"The valve train consists of the crankshaft timing gear, camshaft, and tappet..."
"As the name suggests, the valve train includes valves, valve guides, and valve springs..."
“…”
Jiang Shiyue was completely confused.
During this time, Yang Yang turned around and glanced at Jiang Shiyue, the meaning on his face was very clear: "Isn't it very simple?"
Jiang Shiyue: “…”
The corners of his mouth twitched, adhering to the father and son's usual style: silence is golden.
Chen Shanhe quickly disassembled the engine, inspected it, and said to Yangyang approvingly, "You're right, there's indeed a problem with the camshaft."
He didn't praise Yangyang, but the pride on his face was evident.
Chen Shanhe removed the bent camshaft, repaired it and reinstalled it, then tried to shake the tractor and start it normally.
The warehouse manager just said, "Reading is still useful!" and ran out to announce the good news.
Chen Shanhe backed out of the garage and installed the truck bed.
The production team leader came over and led people to build a rainproof shed above the truck bed with bamboo strips, spread bedding inside, and moved the injured children onto the truck bed one by one.
Li Chuntian followed the last stretcher onto the car. "Hurry! Go to the nearest clinic first and give him some basic first aid before leaving. Otherwise, the director won't make it to the county hospital."
Chen Shanhe jumped onto the tractor without saying a word.
Chen Shanhe's driving skills are better than anyone else in the village.
A person who can fly a plane steadily in the wind can also drive a tractor steadily on the road.
Of course, this stability is only relative.
The muddy dirt road was full of potholes, and no matter how great Chen Shanhe's skills were, he couldn't use them.
Chen Shanhe and Li Chuntian didn't come back until dark.
As soon as Li Chuntian came back, she shouted that she wanted to take a shower, and Jiang Shiyue brought the hot water that had been boiled earlier to her in the bathroom.
Chen Shanhe went back to the tent and cleaned up briefly. When he came out, he saw Jiang Shiyue waiting outside the door. He was slightly startled, "What's going on?"
Jiang Shiyue shook her head and pointed at the rainbow in the sky. "Look, the rain has stopped and the sky is clear."
Chen Shanhe looked up at the rainbow half hidden in the clouds, "Yeah."
Jiang Shiyue looked up, then took in Chen Shanhe's expression in the dim light, "Are you in a bad mood?!"
The question has a firm tone.
Chen Shanhe rubbed his face and asked, "Is it obvious?"
Jiang Shiyue shook her head. Chen Shanhe was a man who managed his emotions very well and would not easily let others see his thoughts.
As someone who was half his partner, Jiang Shiyue couldn't see through him.
"Chuntian just told me that Principal Song's condition isn't looking good. Auntie said Principal Song was also your teacher when you were in school."
Chen Shanhe hummed, looking up at the fading rainbow, "It's not just the teacher. A large part of the reason I'm where I am today is thanks to Principal Song."
Principal Song was the first person from their production brigade to pass the college entrance examination and then return.
He said he had seen the outside world, so he wanted more students to see the outside world.
At that time, the common people had no regard for studying at all. They just called Principal Song stupid, saying that he could have a stable job but he insisted on coming back to be a donkey in the production team.
Principal Song's parents had threatened him several times with self-harm, hanging, and severing ties with the family, but Principal Song refused to compromise.
At that time, Chen Dingguo, who was the village chief, was the only one who supported Principal Song.
But Chen Dingguo was powerless. At that time, the people were extremely poor and the village had no money to build a school.
Later, Chen Dingguo applied for funds from the town for various reasons.
Finally, the town approved a sum of money for the village to build a brigade headquarters. Of course, Chen Dingguo did not dare to embezzle the public funds, but after the brigade headquarters was built, the original brigade headquarters was left idle and used as a school by Principal Song.
Chen Shanhe is the first primary school student in Houshan Village Primary School.
Even when faced with a special period, Principal Song never stopped running the school.
He did not charge tuition fees for the poor people who had no money to pay. He would repair the damaged mud walls himself.
The benches and chairs in the school are made from dead trees in the village's protective forest.
It was created bit by bit by Chen Dingguo and Principal Song.
The reason why the town was able to approve funds to repair the brigade headquarters was because the brigade headquarters had been in disrepair for a long time.
When Chen Dingguo was the village chief and team leader, the money in the collective account was increasing, and they were about to build a new primary school. But something happened to Chen Dingguo, and he never got back on his feet.
The new team leader saved some more money and used it together with the money for building the school to buy a tractor.
So the small school, which was already on the verge of collapse, persisted year after year.
The rain was the last straw that broke the camel's back.
"You know, it's not easy for ordinary people to join the army, let alone become a highly professional pilot. It's all thanks to Principal Song that I'm where I am today."
Chen Shanhe became a pilot because of a small game he played in the first grade.
The game is that the children pinch their noses and turn around ten times and then point in the direction according to Principal Song's instructions.
Those who point incorrectly will be eliminated, and those who point correctly will have ten more rounds to compete again.
Most of the kids would feel dizzy and unable to tell east from west after spinning ten times, but Chen Shanhe was the only one who was fine after spinning ten times.
After twenty rounds, some people were eliminated.
After thirty laps, Chen Shanhe was the only one left standing in the entire elementary school.
Principal Song was surprised and asked Chen Shanhe to spin until he felt dizzy.
As a result, Chen Shanhe turned a total of sixty-three circles.
From then on, Chen Shanhe would have a special "circle" training after school.
It's either spinning in circles with your nose pinched, or a simple roller.
Chen Shanhe didn't understand why at the time, but since Chen Dingguo asked him to listen to Principal Song, he listened.
Every time Zhao Caifeng punished him and denied him food, he would go to Principal Song for help, and the price he paid for free food and drink was having to run around in circles.
After Chen Shanhe graduated from elementary school, Zhao Caifeng stopped letting him go to school.
During the day, Chen Shanhe followed the adults to the team to earn work points, and came back to study at Principal Song's house at night.
Principal Song still insisted that Chen Shanhe study high school courses and he taught him himself.
In addition to reading, there is also spinning.
Until one day, Chen Shanhe went to Principal Song. Principal Song stewed a chicken, took out a bottle of wine, and pushed an envelope in front of Chen Shanhe with a happy face.
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