How long after touch-up painting can polishing be done?

Is the Tiida equipped with a timing belt or a timing chain?

Tiida is equipped with a timing chain. The main function of the timing chain is to drive the engine's valve train, ensuring that the engine's intake and exhaust valves open and close at the appropriate times. Therefore, the timing chain guarantees the normal intake and exhaust of the engine cylinders. Here is some relevant information about timing chains: 1. With the continuous advancement of automotive technology, some engines have replaced timing belts with timing chains. Compared to traditional belt drives, chain drives offer more reliable transmission, better durability, and space-saving benefits. The entire system consists of components such as gears, chains, and tensioners. Among these, the hydraulic tensioner can automatically adjust the tension force, ensuring consistent chain tension and requiring no maintenance throughout its lifespan. This allows the timing chain to last as long as the engine, not only improving safety and reliability but also significantly reducing the engine's usage and maintenance costs. 2. The lifespan of a timing chain is closely related to the quality of the engine oil used during regular maintenance. Chain drives are more reliable and durable, requiring longer maintenance intervals. The timing chain does not directly rub against the sprocket; instead, it is lubricated by engine oil. If it were to rub directly, the chain's lifespan would be significantly shortened, similar to other metal components in the engine. Therefore, it is essential to ensure that the engine oil is changed regularly and that the oil quality is maintained to guarantee the longevity of the timing chain.

2

1

Share

Which country does the Haval brand belong to?

Haval is a sub-brand of China's Great Wall Motors, established on March 29, 2013, specializing in SUV production and sales. Haval's main vehicle series include the H series, M series, and F series. The primary models in the H series are the Haval H2s, Haval H2, Haval H4, Haval H5, Haval H6, and Haval H6 Coupe. The M series mainly features the Haval M6, while the F series includes the Haval F5 and Haval F7. The Haval logo consists of silver letters 'HAVAL' on a red background, symbolizing 'all-powerful.' In recent years, Haval introduced blue and red badge logos with distinct appearances. The red badge features a shield-shaped front grille, while the blue badge has a flat hexagonal grille. Key milestones in Haval's development: 2005: The Haval CUV was fully launched, marking the birth of the Haval series. 2006: Haval conducted a full-scale crash test at the China Automotive Technology Research Center according to the E-NCAP global safety standards, achieving a four-star rating. This was the first Chinese vehicle tested under this standard, which is stricter than domestic NCAP requirements. 2017: The Haval M6, the brand's first compact SUV, debuted in Beijing. It was equipped with a 1.5T engine and offered two transmission options: a 6-speed manual and a 6-speed automatic, across five variants. 2021: Great Wall Motors launched the Haval Shenshou, a new tech flagship SUV, in Chengdu.

17

4

Share

Can You Continue Driving If the Coolant Level Is Low?

If the coolant level is below the minimum mark but there is still water in the expansion tank, you can continue driving. However, if the coolant level is below the minimum mark and the expansion tank is almost empty, you should not continue driving. Coolant Replacement Cycle: For vehicles that operate for extended periods, such as taxis, high-quality coolant should generally be replaced once a year. For vehicles with shorter operating times, replacement can be done every two years or every 30,000 kilometers. To prevent excessive foam formation, which reduces the heat exchange efficiency between the coolant and engine components, ensure the product is within its validity period when adding it. Long-life coolants can have a validity period of up to three years. If suspended particles, sediment, or discoloration are observed in the coolant, replace it promptly and clean the system. How to Determine If Coolant Is Low: Check the coolant warning light on the dashboard. If it lights up, it likely indicates low coolant, though it could also be due to excessively high cylinder temperatures. Inspect the coolant reservoir. If the level is below the minimum mark (MIN), do not continue driving and add coolant immediately. Check the water level markings on the coolant tank. The normal coolant level should be between the maximum and minimum marks. If the coolant is below the minimum mark, it indicates a shortage.

8

2

Share

What Causes Oil Burning in Dongfeng Nissan Sylphy?

Nissan Sylphy vehicles experiencing oil burning may be due to the following reasons: 1. Poor fuel quality can easily lead to carbon deposits, which in turn accelerate wear between the piston and cylinder wall, creating excessive gaps that allow oil to enter the combustion chamber. 2. Carbon deposits accumulating in the piston grooves can cause the piston rings to stick together, preventing them from sealing properly. This significantly reduces the oil-scraping and sealing capability of the rings. Additionally, sludge can clog the oil return holes, preventing proper oil circulation and increasing oil consumption. 3. Corrosion and aging of the valve stem seals can lead to poor sealing. Valve stem seals are among the most prone-to-wear components in the engine, and most vehicles with over 100,000 kilometers driven will have this issue. 4. Aging of the front and rear crankshaft oil seals. These seals are in constant and extensive contact with oil, and impurities in the oil, along with the engine's temperature fluctuations, gradually weaken their sealing effectiveness, leading to oil seepage or leakage. 5. Clogged air filters and dirty throttle bodies can restrict airflow, reducing intake pressure and creating a vacuum that draws oil into the combustion chamber, causing oil burning. A clogged oil filter can also increase oil consumption. 6. High fuel content in the oil due to poor fuel supply system performance or improper fuel atomization can allow fuel or overly rich fuel mixtures to enter the crankcase and mix with the oil, diluting it. 7. Damage to the oil seal between the turbocharger and intake pipe, primarily caused by extended oil change intervals or the use of low-quality oil, leading to insufficient lubrication and cooling of the turbocharger's floating main shaft and subsequent seal damage.

16

4

Share

What type of gasoline should the Odyssey use?

The Odyssey should use 92-octane gasoline, as this is the recommended fuel grade specified in the vehicle's official user manual. In addition to checking the appropriate gasoline grade in the user manual, you can also find it indicated on the fuel tank cap. Typically, the fuel grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92-octane gasoline, those between 10.0-11.5 should use 95-octane, and if the compression ratio is higher, 98-octane is recommended. However, with the application of new technologies, the compression ratio alone cannot determine the appropriate gasoline grade. High-compression engines can also be tuned to use lower-octane fuel, as factors like ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline octane rating, the higher the octane number and the better the anti-knock performance. 92-octane gasoline contains 92% isooctane and 8% n-heptane, while 95-octane gasoline contains 95% isooctane and 5% n-heptane. If the Odyssey occasionally uses the wrong gasoline grade, simply switch back to the correct grade after the current tank is used up. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower-octane fuel, using a higher-octane grade will not cause damage, but the increased octane number can alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces both the engine's power output and thermal efficiency, resulting in poorer performance. For vehicles recommended to use higher-octane fuel, using a lower-octane grade can cause engine knocking. The significantly lower octane number reduces the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance is generated during the upward stroke. This resistance makes the engine run very unevenly. Mild knocking may only increase noise without obvious engine damage, but severe knocking indicates serious engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, potentially leading to cylinder scoring.

16

3

Share

What Do the Numbers on the Glass Model Mean?

In addition to identifying the car manufacturer, glass brand, and national certification code, the encoding and model numbers of automotive glass also include the production date. Here is some relevant information about automotive glass: 1. Function: Automotive glass is an essential part of a vehicle's body accessories, primarily serving a protective role. 2. Classification: Automotive glass mainly falls into three categories: laminated glass, tempered glass, and zone-tempered glass, all of which can withstand strong impacts. Automotive glass is also categorized by its location on the vehicle: front windshield, side window glass, rear windshield, and sunroof glass.

6

2

Share

How long after touch-up painting can polishing be done?

Is the Tiida equipped with a timing belt or a timing chain?

Which country does the Haval brand belong to?

Can You Continue Driving If the Coolant Level Is Low?

What Causes Oil Burning in Dongfeng Nissan Sylphy?

What type of gasoline should the Odyssey use?

What Do the Numbers on the Glass Model Mean?

What kind of paint is Moonlight White?

Is the Lavida Equipped with a Three-Cylinder Engine?

What is the battery model specification for Geely Emgrand?

Will the Next-Generation Mercedes-Benz CLA be Introduced in China?