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How to loosen a rusty nut
Model: (Various brands) Various
All of us, in maintaining our car, maybe a bit old, have had to deal with unscrewing a rusted bolt that gave us some trouble. Let's see in this video how to unscrew it with the least possible damage. First, we need to clean them well with a wire brush, then we need to spray them with a specific loosening agent, such as WD-40 or CRC, and let it sit for at least fifteen minutes. If despite this we are unable to unscrew the bolt, we will need a tap wrench, or a wrench with a longer handle: in any case, let's try not to exert too much force, as this could strip the nut, or break the bolt head, and the possibility of getting hurt is always present. Another attempt can be made with a piece of metal and some strong hammer blows and then try to unscrew it with a ring wrench. Furthermore, we can try with a chisel on the corner of the nut, always pressing with a hammer, and then try again with the ring wrench.
Posted on 29 September 2025 by ScegliAuto
Video tutorial
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