You will need
- - the file;
- - nut;
- - drill;
- - screwdriver;
- - wrench;
- when doing this, or troks;
- - lighter.
If the cap bolt broke off, but it was at least some part, try with a file make a groove for the screwdriver. After this, carefully loosen the damaged bolt of an appropriate size screwdriver.
When the cap is completely broken off, you can use professional tools to loosen these bolts. Purchase the auto parts store a special gimlet. Drill the bolt hole corresponding to the size of the gimlet and screw it in there. Then remove the bolt of the protruding end of the thumb.
Pull the bolt and other method. Drill a hole of a size such that before the threads were only 1-1. 5 mm. During drilling periodically dip the hot drill bit into engine oil. Then gently otkovyryat the remains of the bolt with any sharp metal object, for example, with a screwdriver. The main thing – to calculate the correct size drill so as not to hurt the threads. This option is also suitable in the case when you need to get the broken bolt.
If the cap bolt is torn off, but sticking a piece of thread, pull it with a nut. To do this, choose the size of the nut and are highly rascality it on the fire. To keep her you need a pair of tweezers or tongs with heat-resistant handles so you don't burn the hands.
After the nut is thoroughly heated, install it on the protruding chip of the bolt. Due to the high temperature nut should be welded to it. After some time, necessary for the metal has cooled, take the correct size wrench and remove the bolt for the nut welded thereto.
You can also try to pull the bolt key with an asterisk or, as it is called, troks. For this you need to drill the bolt hole and drive there troks. When he walks the entire length, remove the bolt for him.
Advice 2: How to remove broken bolt
Sometimes, when tightening the new bolts used excessive force and the bolt breaks, and also when you Unscrew the old rusted bolts, had to deal with a bolt with stripped thread or a broken head. In this case, there are several techniques to remove this bolt.
You will need
- liquid key;
- - screwdriver, pliers, adjustable wrench;
- - drill;
- - welding
Fill the hole with the broken bolt fluid that can ease your work. It can be a liquid key, or a universal lubricant. They are, after a while, when the connection is cleared.
Inspect the bolt head. If the corners are torn and no longer pose a clear hex, then if the bolt is not very large, then take the pliers. If the bolt is large, then instead of pliers, use a pipe wrench. Position the pliers at a right angle to the bolt. Try to Unscrew the bolt that way.
In the absence of the head bolt, if the bolt is large enough, then the smallest drill bit to make the bolt line 2-3 holes, powerlaw, so the groove under the screwdriver. Inserting a screwdriver into the drilled groove, remove the bolt. The screwdriver is better to take T.
If the head is broken but the part of the bolt protrudes slightly, for it's also possible to grab with the pliers. The combination of pliers and cut the groove under the screwdriver, using two instruments increases the probability of successful extraction of the bolt.
Try using welding to weld to the broken bolt the right size nut and then remove the bolt using the nut as a bolt head.
Drill out the bolt if it has no head, and the bolt is small. This is the most devastating method of extraction of the bolt. To do this, in the center of the bolt drilled hole. The drill start with a smaller diameter than the bolt, because it is possible that the reverse switch on the drill, the bolt will turn with the drill. If not, the hole can be lightly hammer a flathead screwdriver of the appropriate diameter and try to remove the bolt with it, or drill out bolt drill bit of the same diameter.
The task is to drill out the bolt without damaging the surface is not always feasible. This is especially true of situations that arise during the repair. Sometimes the decision about replacing the whole unit is less costly, both financially and emotionally.
If the bolt is solid, it as a screwdriver you can use a chisel with a hammer, unscrewing the bolt a light tap in the right direction.