How to Clean Valve Carbon Deposits?
2 Answers
Remove the intake throat pipe to expose the throttle valve; Disconnect the negative terminal of the battery and turn off the ignition switch; Straighten the throttle valve flap and spray a small amount of carburetor cleaner into the throttle valve; Use a polyester cloth or non-woven fabric to scrub, and for deep areas of the throttle valve, use a clip to hold the cloth for cleaning.
Valve carbon buildup is common in older vehicles, mainly caused by incomplete fuel combustion leading to impurities accumulating at the valve position, which affects engine power and fuel consumption. There are several cleaning methods, and the one I frequently use is chemical cleaning, such as adding professional carbon deposit cleaner to the fuel tank to dissolve the carbon deposits while driving. The operation is simple: first, buy a good-quality cleaner, pour it into the fuel tank according to the instructions, fill up with gas, and drive a few hundred kilometers. Another physical method requires disassembling the engine and scraping off the carbon deposits with tools, but this is risky and should be done by professionals. When I handle it myself, I always wear gloves to avoid skin contact with chemicals and check for any residue after cleaning. Prevention is also important; regular oil changes and using high-quality fuel can reduce carbon buildup. After my last cleaning, I noticed a significant reduction in fuel consumption and smoother acceleration. If you're not very familiar with cars, don't attempt disassembly; it's safer to spend some money and go to a repair shop.
