For some time before eating, put on the bolt soaked in kerosene on a rag. The more the cloth will lie down on it, the better. If no time, then you can use the same kerosene or legkopodwijnaya lubricant WD-40. Knock the bolt with a hammer, then put a kerosene or WD-40. Wait for 1 minute, and five knock bolt. You can then try to Unscrew. Is that any grease or kerosene on hand, then you can use brake fluid or regular vinegar.
You can also try to "shake" the bolt. Start to loosen and tighten. If the bolt has moved a little, start again to Unscrew. As soon as the bolt stops spinning, start to wrap it all the way. Thus, slowly and not nervous, you Unscrew a rusty bolt.
If the bolt can not be loosening any of the above methods, take a hammer and chisel. Put the chisel on the edge of the cap boltand at an angle. The sting of the chisel should be directed in the direction of loosening the bolt. Apply sharp strong hammer blows on the chisel. Thus, you can loosen virtually any rusty bolt. You can also Bang on the key, but not much. If the bolt can not be, the key is easy to lick their faces the bolt.
Very effective way is to heat the bolt. It is possible to heat a soldering iron, blowtorch, burner and boiling water. It is necessary to heat strongly. The more you heat, the higher the chances that you can easily Unscrew a rusty bolt. The main thing is not let it cool, twist the bolt until it is hot.
Do not lubricate the bolts when tightening the grease and petroleum jelly. These greases are designed for rubbing parts. If they lubricate the bolt or nut, over time the grease will zacatepec and screw will be harder than a rusty bolt.
Don't forget to lubricate the bolts and nuts when they spin, graphite. It can be bought in any shop.
Advice 2: How to loosen crankshaft bolt
To replace the timing belt you should always loosen the pulley bolt of the alternator on the crankshaft of the engine. To hold the crankshaft, if the car is automatic transmission, it is not possible, however, to turn Unscrew a bolt is not as difficult as it seems.
You will need
- - a set of keys;
- - mount;
- - a partner.
Remove all belts attachments. For this purpose, when the transverse position of the engine, lift the car Jack and remove the front wheel. Remove half of the plastic apron, opens free access to the belts.
Disconnect the center wire of the distributor or if the engine with separate ignition for each cylinder, unplug the electrical connectors from the ignition coils. With the help of a little candle key Unscrew the spark plug. This will help to facilitate the work.
On cars of Toyota, Nissan, Lada and some other, the crankshaft rotates clockwise. Take advantage of this opportunity, attach the Allen key mounted on it a crank pipe in the head of the bolt, turn the crankshaft in direction of rotation until it stops. Make sure that you jump off of the key with the bolt head at least safely. Get behind the wheel, hit the brake and remove the machine from the transmission. Insert the key into the ignition and short the starter, rip the bolt is tightened to the crankshaft. It may happen that the bolt will not be thwarted the first time. Try again. Do not try to Unscrew the bolt to "boost" as it can break the crankshaft.
With machines of the brand Honda and Mitsubishi complicated. On these cars the engines are not located on the right and left and their crankshafts rotate in the other direction and loosen the bolt as described above will not work. Remove the top cover of the timing belt, if possible, loosen idler pulley and remove the timing belt wheel of the camshaft. Fold the top part of the timing belt into a loop and slide it onto the bracket to engine mount, then pull back the strap in the middle with a tire iron. So you firmly lock the crankshaft pulley. To perform this operation you need the help of a partner. One needs to keep coming kaneval, and the other to loosen the pulley bolt of the alternator.
Advice 3: How to Unscrew rusty bolts
No major repairs, especially when it comes to complex arrangements, not without much anguish with rusty, stuck or pribavleniya as a result of processes of diffusion of the bolts. The problem becomes an edge when you need it to Unscrew a bolt and not break it. There are several professional tips for such occasions.
You will need
- professional tools;
- is a universal lubricant;
- - heating element;
- - sulfuric acid;
- - rags.
Before to Unscrew a rusted bolt, first check the instruments used. Head or adjustable spanner wrenches should be made of quality metal with a suitable coating. Unfortunately, cheap products too often break down, causing even greater problems and even damage the distressed details.
First, try to Unscrew a rusted bolt on system front to back. Tightly secure the wrench on the bolt, then suddenly turn it on against the axis of rotation, easily return to its original position and again sharp movement, try to twist it a bit. Manipulation should continue as long as the bolt literally will not penetrate the rusted part of the thread.
If the previous steps do not work, you should use a special penetrating lubricant, for example, is very popular WD-40. In its absence can also help turpentine, kerosene, gasoline, or oleic acid. Wrap a rusted bolt with a rag and densely fill the resulting design of the selected liquid. Leave the cloth for several hours, periodically rattling the bolt with a hammer for better penetration of the fluid into the structure of the rust. After that, the bolt can be unscrewed, if necessary using a system of "back and forth".
If after marinating in a special blend of the bolt does not want to get out, come to the aid of the knowledge of physics school courses. Use a soldering iron, heat gun, gas burner or if the detail sizes with a rusty bolt let, ordinary gas stove to heat the bolt up to the maximum possible temperature. Then let the metal cool slightly and remove the bolt. Sudden cooling can lead to rupture of the metal of the bolt or the part itself, however, this method is also applied.
If the physical failed, help can come only chemistry. In this case, around the protruding part of the rusted bolt nameplate a side of melted plastic, clay or paraffin. In the ring formed is poured a little zinc dust and poured sulfuric acid. Thus the bolt becomes a party to the galvanization process (this is also the school curriculum). As a result of this process, the bolt action of acid is not exposed due to the more active zinc, but rust is fully dissolved. Moreover, after conducting this experiment during the day the metal of the bolt will be restored due to the zinc.
Advice 4: How remove stuck bolt
The problem of loosening stuck bolts is familiar to many who have ever tried to fix something with their hands. In the Arsenal of every self-respecting masters of many ways to cope with a jammed fastener. But for beginners there has to be some knowledge.
You will need
- - penetrating lubricant or equivalent;
- - heating element;
- - sulfuric acid;
- - zinc;
- wax or plasticine.
Take brake fluid, turpentine, kerosene, oleic acid or any other penetrating lubricant of those that are at hand. The craftsmen is the most common liquid WD-40. Soak the cloth in the liquid and press it onto the stuck bolt. To improve the penetration of grease into the joint slightly postukivanie on the bolt.
To make his task easier, try to use a quality tool. Carob keys, replace the cap, use the heads. Not necessary to buy high-quality German tool for the pros. Just don't use cheap Chinese.
Loosening use the reception of the buildup. About the same, as do the drivers of the stuck cars. By the way, this method will further strengthen the penetration of the grease into the thread.
If the previous methods do not help, try to lengthen the shoulder of the key, putting him on a suitable pipe section. You can try to hit the wrench with a hammer, trying to Unscrew the bolt.
Try heating the stuck item in any suitable manner. For example, a soldering iron, a Hairdryer or a gas burner. Well heated the bolt easier to come off. You can try and quenching the hot parts, but it could backfire.
Take wax or clay and vilaite around the bolt round the wall. In the resulting capacity around the head of the fastener pour sulfuric acid and put a small amount of zinc. The resulting electroplating solution, leave for about a day, then try to Unscrew the bolt again.
If the result of all the failed efforts, the bolt will break and damage the head, do not despair. Visible remains of the details of the weld lever and keep trying. Or a suitable drill bit drill out the remains of the part of the thread.
And the next time to avoid such situations, use only high-quality fasteners. Before screwing be sure to lubricate slightly alkaline grease or vaseline with graphite powder. And don't forget about compliance with the specifications.