In 1992, a small village owner became the richest man in the village by owning a car.

Chapter 251 Modification Completed
Yu Dawei and the others replaced the battery and restarted the engine.

As the engine began to roar with a "putt-putt-putt" sound, black smoke kept billowing out of the exhaust pipe, and finally the engine speed increased.

Yu Dawei quickly took control of the oil pump, and the sound of the pump grew louder and louder.

"Old Ji, control the clutch switch and try shifting gears." Yu Dawei released his hand from the jumper, his eyes fixed on the exhaust pipe, the pungent smell of fuel wafting into his nostrils as if it were free.

At that moment, he was recalling the parameters between the engine and the transmission. A four-speed transmission was a common type of transmission, and the Shanghai sedan itself was also equipped with a four-speed transmission, so theoretically there should be no problem.

"No! I can't shift gears, boss." As soon as Lao Ji tried to shift gears, he felt a strong blockage, as if there was a huge rock in front of him that he could push away with great effort but could not achieve it at all.

Yu Dawei frowned, released the fuel injection pump with his right hand, turned around and took over the control of the clutch and gear shift from Lao Ji.

Just as he was about to shift gears, he felt a resistance in his hand. Yu Dawei tried again, but it still didn't work.

Unfortunately, I had no choice but to turn off the engine.

"Brother, what's going on? Is something broken and not fixed?" Yao Jinfu knew nothing about this kind of modification and curiously glanced at the two adults and the child.

"Incorrect parameters" ×3
Coincidentally, Yu Dawei, Lao Ji, and Xiao Agui, who had only studied theoretical knowledge for a few days, all answered Yao Jinfu's question at the same time.

Yao Jinfu: "..."

In that instant, he felt out of place among the three of them. Even though they were all under the same roof, there was always an invisible barrier between them.

"Boss, what should we do? Adjust the engine parameters or the transmission parameters?" Old Ji looked up and asked. Actually, he preferred adjusting the transmission parameters because adjusting the engine parameters was too troublesome.

This is similar to whether to perform surgery on the heart or the kidneys. The heart connects all the organs and is the most important core organ besides the brain, so of course it should be left untouched if possible.

“The transmission.” Yu Dawei stared intently at the transmission for a long time. “As it turns out, the fact that it can start normally means there’s a possibility of compatibility. Let’s try adjusting the transmission. If that doesn’t work, we can just replace the transmission with the original one from the 680 engine.”

"We've already taken ninety-nine steps, what's one more tremor?" Yu Dawei turned around and disconnected the battery cables, then threw the leaking, unusable battery into the garbage heap in the yard.

Several people began to disassemble the gearbox, not completely, but disconnecting the connection between the engine and the gearbox, where the clutch is located. They then began to drill holes in the gearbox for modification and readjustment.

After that, the group spent another half a day repeating the installation and connection steps, as well as reconnecting the fire.

Under the expectant gazes of several people, Yu Dawei personally took to the stage to change gears. The engine speed and the transmission achieved a satisfactory level of coordination. Not only could the gear be engaged, but the engine speed also matched the gear ratio during gear shifting.

"Is this alright?" Yao Jinfu couldn't contain his excitement and turned to look at Lao Ji.

The engine and transmission in front of them had taken a lot of effort, and it would be a waste of time if they failed.

"I guess so, but it depends on second and third gear, and whether there's any slippage when shifting gears." As Lao Ji answered, Yu Dawei was changing gears at the same time, and judging from the speed of shifting, it was quite smooth without any obstruction.

After trying it for a while and finding no major problems, Yu Dawei finally turned off the engine.

He stared at the modified engine and sighed helplessly. In terms of time cost, he had lost money.

Two and a half master mechanics, working on such a small gadget—wouldn't it be better to use that time to fix cars?

However, one should not only look at the present. After the engine of this car is replaced with a six-cylinder engine, if Yu Dawei encounters some cars that are completely "broken down" in the wild, he can completely tow them all the way back to the repair shop.

With even stronger power, one section is more powerful than four sections!

The most important components, the engine and transmission, have now been finalized, which has taken several people nearly two days.

Yu Dawei plans to fix this car himself, while everyone else should fix other cars.

After finalizing the plan, he started assembling the vehicle. Since the rear axle was broken, Yu Dawei mentioned it to Brother Duan, hoping he could help him find a repair shop that had received a rear axle from the van so he could buy it directly.

If it takes two or three days to complete the assembly without any results, Yu Dawei plans to weld the rear axle with an electric welding machine first. He can replace it whenever he finds a suitable rear axle.

However, the next day, Duan Dahai drove his tricycle to find Yu Dawei. The good news was that he found a Daihatsu original rear axle part, but the bad news was that it was too far away and was in a scrap metal recycling plant in Qiqihar.

Recycling plants are a step above recycling stations; they not only process scrap steel but also hazardous waste that is not normally used.

Some of the waste will be landfilled, and a small portion will be incinerated. Currently, waste disposal methods are rather crude. However, as the environment deteriorates and people become more environmentally conscious in the future, new waste disposal methods will be researched.

Yu Dawei hesitated for a moment, but finally decided to go to Qiqihar to tow back the rear axle of the Daihatsu van. He borrowed Boss Liang's pickup truck and drove all the way to Qiqihar.

It took almost another day to get the rear axle back.

The distance from Qiqihar to Suicheng is not too far, but the rear axle cannot be placed in the back of the pickup truck as is, because there is simply no room for it.

Disassembly was required. After simple disassembly of the external parts that could be disassembled, the parts that could not be disassembled had to be reinforced and tied. Only then did Yu Dawei slowly walk back. For safety reasons, he did not dare to drive too fast.

Another day passed, and the front and rear axles, engine, transmission, four brand-new 16-inch wheels, and brand-new anti-skid tires were basically assembled.

After that, some odds and ends were replaced, such as brake pads, batteries, and broken windshields. It's worth mentioning that Yu Dawei specially got a set of off-road vehicle shock absorption system from Boss Liang, and after various modifications, it was finally put into the Daihatsu van.

With these things settled, Yu Dawei's real modifications to the van could begin.

He never forgot his main purpose in modifying the vehicle: to haul more equipment.

Needless to say, various light and heavy tools are needed. In addition, welding machines, generators, oxygen and acetylene equipment should definitely be included.

Oxygen and acetylene, in particular, are a real problem when you don't need them, but when you really need them and don't have them, it's really troublesome. You should keep oxygen and acetylene in the car no matter what.

However, it is very unsafe to leave this thing in a car and drive on bumpy roads. If you are not careful, it could explode, resulting in a car crash and death.

Yu Dawei finally got a second chance, but who knows if he'll have another chance? His life is at stake.

Based on this, he began to re-weld the layout of the van, keeping only the two front seats and discarding the rear seats.

The engine baffle needs to be reinforced; it would be too dangerous if it were accidentally knocked open by heavy equipment.

After finishing the engine cover, Yu Dawei began welding the dedicated oxygen and acetylene compartment inside the van.

Oxygen and acetylene are important components for gas welding, and their specifications are generally 40 liters, 50 liters, 60 liters, 80 liters, and 100 liters.

A 40-liter oxygen tank is about 1.5 meters long, 23 centimeters in diameter, and weighs about 80 kilograms.

A 40-liter acetylene cylinder is a little over one meter long and 25 cm in diameter. With the addition of the high-pressure steel cylinder, it weighs over 100 kilograms.

Currently, both the length and the diameter and weight specifications perfectly meet Yu Dawei's needs.

Currently, the quality of high-pressure steel cylinders used to store oxygen and acetylene is relatively average. With the continuous advancement of technology in the future, and the adoption of more advanced forging methods, the weight of the cylinders themselves will be greater.

The oxygen and acetylene in the car were equivalent to the weight of two adult women, which Yu Dawei was quite satisfied with.

The smaller the load, the better. However, the oxygen and acetylene in the factory are all large-capacity 80-liter units. In order to move the oxygen and acetylene units that are taller than a person, Yu Dawei and Lao Ji specially welded a small cart.

From then on, oxygen and acetylene's "smart feet" were completely off the ground, and they could go anywhere by pushing a cart, which could be done by one person.

If Yu Dawei wants to use a 40-liter oxygen-acetylene cylinder, he has to buy it, fill it with oxygen and acetylene, and also get the matching dial, air hose, and air gun.

When welding the van, Yu Dawei used four steel plates, all of which you got from Brother Duan. Three of them were 1.5 meters long, and they were used to weld the bottom and sides of the van. A small rectangular steel plate was welded to the front, and the whole thing was placed at the bottom behind the passenger seat.

Then tie the newly bought oxygen-acetylene hemp rope around the neck again. This is to make it easier to pull it off by simply grabbing it from the rope.

The two cans are stacked in the steel plate channel, which not only saves space in the van, but also looks very nice.

However, once it was placed there, one side of the van bore an undue weight and began to sag, making it look rather comical with the left side higher than the right.

Yu Dawei then placed a small generator, welding machine, and toolbox on the left side, behind the driver's seat.

The advantage of this arrangement is that the toolbox can be easily taken out by opening the back door, and the oxygen and acetylene cylinders face outwards without needing to be moved. You can directly connect the gas hose and start welding work.

When Yu Dawei finished modifying the car, he finally felt a sense of accomplishment and clearly sensed its future value.

(End of this chapter)