How to Clean Scale Inside the Engine?
4 Answers
Engine scale cleaning method: After the engine is turned off, drain the coolant, add cleaning agent, start the engine and run at medium speed for 5 to 10 minutes, then let it stand for 15 minutes. Run at medium speed again for 5 minutes, then drain the cleaning agent. Repeat this process three to four times until the discharged cleaning agent shows no contaminants. An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, Stirling engines, steam engines, jet engines, electric motors, etc. For example, an internal combustion engine typically converts chemical energy into mechanical energy. The term engine can refer to either the power generation device or the entire machine including the power unit. The engine was first invented in the UK, so the concept of the engine also originates from English, with its original meaning referring to a mechanical device that generates power.
I have my own method for cleaning engine scale. First, you need to understand that scale is mineral deposits in the cooling system, which can clog pipes and affect heat dissipation if left untreated for long periods. I recommend buying a dedicated cooling system cleaner, such as a citric acid-based formula, which is safe and won't damage metal. When operating, make sure the engine is cool, pour the cleaner into the radiator, start the car and let it idle for 15 minutes to dissolve the scale, then rinse multiple times with clean water until the discharged water runs clear. Finally, top up with new antifreeze and avoid using hard water to prevent recurrence. The entire process requires patience and wearing gloves for safety. If the scale is severe, a full system flush is best. Regularly checking the color and level of the antifreeze can greatly reduce trouble and protect the engine's lifespan.
As a DIY car owner, cleaning scale deposits is quite straightforward. First, purchase a bottle of cooling system cleaner from an auto repair shop—it's inexpensive—and pour it into the radiator cap. Start the engine and let it idle for about 10 minutes; the cleaner will gradually dissolve the scale. Turn off the engine, let it cool for half an hour, then drain the dirty water and rinse thoroughly before adding fresh coolant. Wear gloves during the process, and avoid working on a hot engine to prevent burns. Remember to use distilled water when mixing coolant to minimize mineral deposits, keeping the engine cool and efficient. Check the radiator every six months and address minor issues promptly to save both money and hassle.
I handle this matter with extreme caution. Engine scale cleaning carries high risks, and doing it yourself may damage seals or cause leaks. I recommend seeking a professional repair shop—they have specialized equipment and experience to perform the job safely and efficiently. Prevention is key: replace the coolant regularly, every two years, using high-quality products to minimize scale buildup. If you insist on DIY, first read the manual to understand the system structure, use mild cleaners in small amounts for testing, but don’t take unnecessary risks—otherwise, you might end up spending more on repairs later.
