After repairing the car, you are welcome to comment, replace the filter base, thermostat, foot pad, gearbox oil, etc.

  10
 September 4, 2024
Follow up the previous post, https://a.xcar.com.cn/bbs/thread-98912615-0.html?xuid=6260517
After the repair of the car, I will report it to you, which can also be used as a reference for cyclists with similar needs.
Repair items: replacement filter base, thermostat, machine mat, motor belt, gearbox oil and differential oil.
After studying the forum posts and bargaining online, I bought all the spare parts I needed: a set of machine foot pads from the original factory, a thermostat from Vall, a filter base from the original factory, a set of motor pulleys and belts from Schaeffler, and a set of spare parts for 4000 yuan. They were bought by two online stores, Mercedes-Benz House and Guangzhou Guang Quan auto parts. My ability was limited, and I didn’t dare to say how the quality was. But it should be the most competitive price in the online store that car friends trust relatively at present. In addition, we bought Mobil FS 0W40 oil recommended by the strict version of JD International, loaded with 1QT, 7 barrels (actually used 6 barrels), at a cost of 472.71.
Later, it was found that Sam’s store has and only has 5QT, which is more favorable.
The repair shop also visited several shops on the recommendation of the forum, car users and strict editions. by comparison, they chose a two-step strategy, that is, the repair and partial maintenance was handed over to one store, and the transmission oil and differential oil were changed in another store.
I chose a Monday, thinking that there were fewer cars and fewer people, so the master could work calmly. Unexpectedly, when I arrived at the store, a silver car of the same year was already changing its brakes. I chatted with the owner, exchanged greetings and added Wechat to each other. The car owner said that it is also a forum for guidance, where the starter, sprocket and so on, it seems that the power of the forum is powerful.
The projects planned to be done here include changing the machine filter base, thermostat, belt and foot mat, and changing both the oil and antifreeze. After the silver Mercedes-Benz left, there was only my car left in the shop. The three masters started together, and their movements were skillful and quick. Of course, my experience also limited my requirements. Besides emphasizing the need to use a torque wrench when changing three machine mats, I was more watching the hustle and bustle and took a few pictures at random. In the process of repair, there was some carbon accumulation in the inlet, and there was also some carbon in the endoscope. This was also what I expected. The master suggested that the potion should be washed by soaking. Because I was willing to do dry ice decarbonization later, I only let them clean the carbon deposit in the intake valve with a chemical cleaner. After the installation is completed, the engine sludge is also cleaned. All the work started at 9:30 in the morning and finished at 1:00 in the afternoon, and everything went smoothly, earlier than I expected. The settlement man-hour fee plus 2 barrels of original antifreeze and chemical cleaning agent, etc., totaling 1300 ocean.
So I decided to change the gearbox oil and differential oil together in the afternoon. I thought I would do it in two days. Fortunately, it is in an auto parts city, not far apart. This shop specializes in the repair and maintenance of gearboxes, focusing on Aixin. I found it here because the forum recommended Mote’s differential oil, and his home was also an online seller recommended by the forum. Later, I found that he still had Anso’s gearbox oil at the same price, and the physical store could be built, so I chose his home. The project here is relatively simple, and the life looks more skillful and orderly, but it may be that they are more confident with too much work and do not quite accept some of my requests, such as replacing new oil pan aluminum-magnesium alloy screws and using torque wrenches, so they insist that they are not necessary. in the end, I didn’t accept my request. In the course of construction, I happened to have a phone call to deal with something. I didn’t keep an eye on it step by step. I was not sure whether I had confirmed the oil temperature according to the steps of the strict version. The old oil of the hydraulic torque converter had been released, so I had to trust their experience. Finally, add less than 9L of new oil. The oil and materials are taken at his home, the strainer and gasket are Mahler, the gearbox oil is 10QT, and Mott’s gear oil is 2 barrels 1L. The total plus man-hour fee is 1970.
As soon as I ran on the road after all this work, I felt that the throttle was lighter and the engine noise was gone. In the words of the riders, “the world is quiet”. I think this is the proper meaning of the car that has just been repaired. But I still think the fetus is noisy and not completely quiet.
Next step:
1. I got up this morning to check the oil. The oil is fine, and the liquid level is above the middle, just right. Antifreeze seems to be relatively low, originally wanted to add pure water directly, but based on the ideal antifreeze concentration of 45% to 55%, it is better to add antifreeze from the original factory. The 2L antifreeze used in the original factory was mixed with 4 bottles of pure water 2200ml with a concentration of 47.6%. If you add water directly, it may be a little thin. Consult the strict version, it should be that they did not put the old liquid of my original car, so they only added 4.2L. Bought a bottle of antifreeze from the original factory and added about 400ml, and then completely replace it later.
two。 Mott’s gear oil was only used more than 1L yesterday, and there is probably a bottle of 600ml left. any cyclist in Beijing who has a need can contact me and provide it free of charge. If you change the oil, you can buy one less barrel.
3. In-cylinder and inlet carbon removal may have to be put on the agenda, although recently restored fuel treasure, but the effect is still not good, fortunately, the addition of fuel treasure did not bring more problems.
Finally, put some pictures, not many, and the photos are not good. Let’s make do with it.

The main construction side of this maintenance is also the legendary store to change the sprocket, owner Zhang Chong, Shandong boy.

New wave box glue

New engine floor mats

A new three-piece set of machine foot mats

Comparison of new and old machine mats

A new thermostat

New machine filter base

A new belt

Carbon deposition in the cylinder on the screen

After cleaning the inlet, it seems that it needs further treatment.

When the oil pan of the gearbox is removed, you can see the sludge and iron powder adsorbed on the magnet.

The antifreeze surface of the next morning seemed to be a lot lower than that of the cold car, and then 400ml antifreeze was added.