Does disassembling and cleaning the engine affect it?

1 Answers
LeJoel
07/30/25 2:31am
Disassembling and cleaning the engine generally does not affect it. In automotive maintenance projects, engine cleaning is also a routine maintenance item. If the engine has been experiencing high fuel consumption or running less smoothly recently, cleaning the engine can be considered. However, if the engine has been running smoothly with normal fuel consumption, there is no need to clean it. The reasons why a car's engine needs cleaning are as follows: 1. Sludge formation: When a car is running, engine oil is needed for cooling and lubrication. Over time, the oil undergoes high temperatures, oxidation, and high pressure inside the engine, leading to the formation of impurities and sludge. Poor-quality oil or incomplete combustion can easily result in a large amount of carbon deposits. 2. Sludge and carbon deposit accumulation: The accumulation of these impurities, such as sludge or carbon deposits, can affect the engine's efficiency, leading to a reduction in engine power. The most direct impact is an increase in fuel consumption. 3. Oil pump blockage: If left untreated for a long time, not only will fuel consumption increase, but sludge can even clog the oil pump, causing engine damage. Moreover, when using poor-quality oil, acidic substances containing sulfur and phosphorus may form, which can corrode and damage the engine, affecting its lifespan.
Was this review help?
19
1
Share
More Forum Discussions

What is the reason for the BMW 5 Series alarm sounding after locking the car?

BMW 5 Series alarm sounding after locking the car should be a reminder to the owner that the vehicle has encountered illegal movement or activation. It could also be that one of the vehicle's doors is not properly closed. After locking the doors for 30 seconds, the anti-theft system will detect the improperly closed door as an illegal opening and trigger the alarm. Regardless of the reason, the situation should be clarified. Below is an introduction to BMW cars: 1. Logo meaning: B.M.W. stands for Bavarian Motor Works, and the colors and combination of the logo come from the state emblem of Bavaria, where BMW is located. 2. Brand honors: On December 18, 2018, the "2018 World's 500 Most Influential Brands" compiled by the World Brand Laboratory was announced, with BMW ranking 16th.
20
3
Share

How Do Headlights Change in Curves?

On straight roads, the headlight distance remains unchanged. When encountering general curves, the headlights follow the turn, shifting from the center to the side of the road. Extended information about automotive lights is as follows: 1. Headlights: The primary purpose of headlights is to illuminate the road and objects ahead, ensuring driving safety. They can also use alternating high and low beams as a signal for overtaking at night. Headlights are installed on both sides of the front of the car, with 2 or 4 units per vehicle. The bulb power is 45~60W for high beams and 25~55W for low beams. 2. Fog lights: Fog lights are installed near the headlights or slightly lower. They are used in low visibility conditions such as fog, snow, heavy rain, or dust, serving as road illumination and providing signals to oncoming vehicles. The light is mostly yellow because yellow light has a longer wavelength and better fog penetration. The bulb power is generally 35W.
4
2
Share

What is the difference between painting at a 4S shop and an ordinary repair shop?

The difference between car painting at a 4S shop and an ordinary repair shop is that 4S shops are equipped with more advanced facilities and have greater advantages in paint mixing and color matching. The following is a relevant introduction to vehicle painting: 1. Price: Compared to roadside repair shops, 4S shops have better equipment and more skilled technicians, so the price for painting at a 4S shop is higher, often double that of a repair shop. 2. Choice of painting location: Repair shops are generally classified into first-class, second-class, and small roadside repair shops. If car owners choose a more established repair shop, the painting effect will be more guaranteed.
3
1
Share

How often should a car within 10 years be inspected?

For cars within 10 years, an annual inspection is required. Additional details are as follows: 1. Non-commercial small cars: Inspection every 2 years for the first 6 years; after 6 years, inspection every year; after 15 years, inspection every 6 months. 2. Commercial passenger vehicles: Inspection every year for the first 5 years; after 5 years, inspection every 6 months. 3. Trucks and non-commercial passenger vehicles: Inspection every year for the first 10 years; after 10 years, inspection every 6 months. 4. Motorcycles: Inspection every 2 years for the first 4 years; after 4 years, inspection every year.
2
0
Share

What is the corresponding gasoline octane rating for compression ratio?

Compression ratio can indeed serve as one of the criteria for determining the appropriate fuel octane rating for an engine. Engines with a compression ratio below 8 can use 90-octane gasoline, those below 9 can use 93-octane gasoline, and engines with a compression ratio above 9 should use 97-octane gasoline. Impact of compression ratio: The compression ratio affects the gasoline octane rating required by an engine because the air-fuel mixture generates heat during compression. Higher cylinder pressure leads to increased heat and higher temperatures. Reason why compression ratio affects fuel selection: Lower-octane gasoline has a lower ignition point than higher-octane gasoline and is more easily ignited. Therefore, engines with low compression ratios use lower-octane gasoline, while high-compression engines require higher-octane gasoline.
5
1
Share

What to Do If an Accident Occurs with an Un-transferred Used Car Insurance?

The new Insurance Law (2009) stipulates that after the transfer of vehicle ownership, the new owner inherits the rights and obligations of the original insured. This means that as long as the vehicle has been transferred before the accident occurs, regardless of whether the insurance policy has been transferred, the actual insured is the current owner at the time of the accident. You can file an insurance claim with the insurance company. (Refer to the Insurance Law for details) More relevant information is as follows: Note 1: Insurance companies can only refuse to pay claims if the transfer results in a significant increase in the risk level of the subject (vehicle), such as changing from non-commercial to commercial use. (Refer to the insurance terms for details) Note 2: Currently, the China Insurance Regulatory Commission is addressing the issue of difficulties in auto insurance claims. Professional insurance company claims personnel will determine whether to pay based on the aforementioned circumstances, rather than directly refusing payment on the grounds that the policy has not been transferred. This reason is invalid, not recognized by the Insurance Regulatory Commission, and will not be upheld in court.
6
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.