How to Clean Engine Water Scale?
3 Answers
Engine water scale cleaning method: After the engine is turned off, drain the coolant completely and 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, and drain the cleaning agent completely. Repeat this process three or four times until the discharged cleaning agent is free of contaminants. An engine is a machine that can convert other forms of energy into mechanical energy, originated in the UK, and it can be used either as a power generation device or refer to the entire machine including the power unit. Its types include internal combustion engines (such as gasoline engines), external combustion engines (such as Stirling engines, steam engines), electric motors, etc.
Cleaning engine scale deposits, I've tried a DIY method at home that works quite well. First, use a wrench to loosen the radiator drain valve and completely drain the old coolant. Then pour in some white vinegar or lemon juice - vinegar does a great job dissolving scale, but don't use too much, about one liter is sufficient. Start the engine and let it idle for about 15 minutes; the vinegar will circulate and soften the rust deposits. Turn off the engine, drain the vinegar solution, then flush with clean water two or three times until the water runs clear. Finally, refill with new antifreeze and bleed the system to prevent air bubbles from affecting cooling. Be careful throughout the process not to burn yourself, as the cooling system gets extremely hot. I also recommend doing this cleaning every two years - excessive scale buildup reduces heat dissipation and can cause engine overheating. Spending some time on prevention is better than dealing with repairs later. For regular maintenance, never use tap water to top up coolant; always use distilled water for better rust prevention.
From a professional perspective, cleaning engine water scale starts with the cooling system. Find a clean container, drain all the old coolant, and add a specialized cleaner such as an automotive cooling system flush product. Start the engine and let the cleaning agent circulate for about half an hour—it contains acidic components that effectively dissolve rust. Then thoroughly rinse the radiator and pipes with water, using a garden hose connected to the inlet to flush out any impurities. Finally, refill with new antifreeze and test the pH balance for proper levels. Recommended tools include a funnel and gloves for safe operation. Incomplete rinsing can clog oil passages or cause overheating, damaging the engine block. It’s best to visit a repair shop, as they have high-pressure equipment for a more thorough job. If doing it yourself, also check pipe seals for leaks, as water leakage poses significant risks.
