"And I definitely don't need you to be so troublesome, isn't it just a matter of bad sealing? This is a good solution, you wait. Zhang Nan said, then entered the system and replaced a section of ethylene propylene rubber tube.

This kind of rubber pipe has very good heat resistance, can work continuously in a working environment of 110 degrees Celsius, and can also work intermittently in an environment of 150 degrees Celsius, which can be said to have good heat resistance in rubber.

Zhang Nan changed the rubber pipe from the system to save trouble, and it was not as fast as this to build a gas tank from the beginning, Zhang Nan also wanted to solve the whole problem as soon as possible, and go directly to the palace tomorrow to find Li Er, so that Momen would have successfully had an identity.

As for remaking the gas tank with better sealing, this is not Zhang Nan's task, and after the Tiangong Department starts recruiting people, it will be good to hand over this problem to the group of people who are good at this.

"Qingquan, what is this thing?" Mo Zu looked at the slightly elastic rubber tube in Zhang Nan's hand and asked.

"Ah, you said this, this is just a small pipe, put this on the gas tank, and the gas tank will not leak." Zhang Nan said.

"Does this thing work?" Bai'er was obviously skeptical of what Zhang Nan had taken out.

"Whether it can be used or not, you will know after reading it." Zhang Nan smiled and didn't say anything.

When the coal in the boiler was almost burned, Zhang Nan got a bucket of cold water and began to pour it on top of the hot gas tank to let the gas tank cool down quickly. After making all these preparations, Zhang Nan began to put the rubber tube on the gas tank, and put a layer on it, Zhang Nan still felt that it was not safe, but put another layer on it, a full two layers of rubber cover.

Zhang Nan looked at the tightly wrapped gas tank and said with a smile: "This time there will definitely be no more air leaks." ”

"Are you so confident in you?" Bai'er gave Zhang Nan a roll of his eyes.

"Aren't you confident in yourself?" Zhang Nan turned his head and said, hearing Zhang Nan sarcastically mocking himself, Bai Er snorted coldly, then turned around and entered Mozu's house, and after entering the house, Bai Er opened a small crack in the wooden window, and looked directly at the gas tank that Zhang Nan had just repaired, waiting to see if this gas tank was leaking.

Of course, Zhang Nan saw all this in his eyes, smiled, and didn't say anything.

"Okay, now let's test it, I think this speed will definitely increase." Zhang Nan arrived.

Mo Zu nodded, and then said, "Ah Da Ah Er, make a fire." ”

Ah Da Ah Er received the order, and began to add coal to it, but Ah Da Ah Er did not have the help of oil and crude oil to make a fire, so he could only honestly make a fire little by little, and after a long time, the fire finally rose.

When the water boiled, the outlet of the gas tank made a screeching sound, and then the whole steam car slowly moved forward, and after a while, the speed of the steam car increased, and it ran forward with joy.

Zhang Nan was also very satisfied with the steam car that could run, but after being satisfied, Zhang Nan suddenly found a problem.

How the hell is this thing stopping.

After wasting all the strength, Ah Da Ah Er finally stopped the steam car that had no way to control.

"Qingquan, we really did it, this ingenuity that can run on our own without livestock, we finally did it." Mo Zu's face was excited, and it was obvious that Mo Zu was also very satisfied with this speed.

"Well, that's true." Zhang Nan said with a frown.

"Huh? Why does Qingquan look a little unhappy? Isn't that a good thing? Mo Zu looked strange.

"Happy is happy, but this thing is not under our control, we have to add a guide system on it, to ensure that we can go wherever we want, and we must be able to brake the car, this thing is not a horse, we say we can stop by driving or driving it." Zhang Nan pinched his chin and said.

"Well, that's right, but this guidance system still needs to be studied and studied, it's not something that can be taken out at once, but if Qingquan you have a drawing, we can make it directly." Mo Zu thought for a while and said.

When Zhang Nan heard this, he still didn't know what Mozu meant? The implication of Mozu is that it will definitely take time to re-study, and if Zhang Nan does not come up with a suitable drawing now, then he can only wait until Momen studies this guidance system before using this steam car.

Zhang Nan had no choice, so he had to replace a simple steering system drawing from the system, and then Zhang Nan said: "This is the drawing of the steering system, you can study the brakes yourself, I will report to the emperor tomorrow about Momen, I estimate that the emperor will announce that Mozu will enter the palace, you can do it yourself, if you don't make it, it will not be my problem." ”

Mo Zu took the drawings in Zhang Nan's hand with a smile, and then said: "With the drawings, everything is much simpler, Qingquan, don't underestimate our Momen people, the day after tomorrow, no, tomorrow the old man, I will take this thing to your house." ”

Mozu was also very happy when he heard that Zhang Nan was going to report to Li Er, after all, this was not for himself, this was for the entire Momen to survive better, so this matter was done, and Mozu was still very happy.

Zhang Nan nodded after hearing this, and then said: "Okay, then that's it, Mozu, you remember to go to my house tomorrow, I won't stay longer, I will enter the palace now to ventilate the emperor first, tomorrow the emperor will announce it in the morning, see the reaction of the ministers, if there is no accident, the people of Momen will have a suitable identity the day after tomorrow." ”

"That old man is here, and he thanked Qingquan on behalf of the people of Momen." Mo Zu arched his hand at Zhang Nan and said.

"You're welcome, Momen will eventually be included in my Heavenly Work Department, the Heavenly Work Department is not for everyone, there is an exam before entering the Heavenly Work Department, if you don't qualify, then I won't have a choice." Zhang Nan arrived.

Mo Zu nodded, and then said: "You don't have to worry about this Qingquan, I am confident in the old man, if there are really people who can't pass the test, it means that they are not good at learning, and of course they can't afford the identity that Qingquan you asked for for the people of Momen." ”

"Since that's the case, then I'll leave now, Mozu remembers to make this thing early, and I'll go to the palace now to tell the emperor." After Zhang Nan finished speaking, he arched his hand at Mo Zu, and then strode towards the entrance of the village, and without taking two steps, Zhang Nan returned again.

"That, Mo Zu, can you send someone to send me out? Your Momen road is really not easy to walk. Zhang Nan said with an embarrassed face.