How to cut bolts on silent blocks. How to extract Silent

Review of the 4 best landscapes of silent blocks

Silent blocks are non.vegetable rubber.metal hinges that connect various mechanisms. They are designed for vibration isolation and noise absorption. The most durable ones are made of strong steel and rubber.containing rubber, firmly cooked with volcanization.

Sometimes, instead of rubber, polyurethane is used. Vibration insulation is achieved by the lack of direct contact of mating metal parts. Noise absorption occurs, since the product uses rubber or noise.absorbing polyurethane. For their repair, special devices are needed. this is a drawback. Based on the repair method, various materials and devices are selected.

Types of dismantling

In garages, repair shops, stations of one or specializing firms, various dismantling methods are used:

The first five ways are used where there is no manual hydraulic press, vise, pullers, also if the dimensions or accessibility of the node are forced to do this. To remove the failed rubber.metal product, these methods are needed:

• VD-40 or analogue;
• chisel, hammer, instructions;
• drill;
• drill;
• electric screwdriver;
• hacksaw;
• corner grinder;
• knife;
• welding machine;
• burner.

There are general rules to dismantle hinges:

• Before disassembly, be sure to inject the VD-40 or kerosene to gaps and threads;
• wait time for the liquid to act;
• Do not damage the working elements that are not subject to replacement.

Let us consider in more detail these methods of dismantling.

Restoring the thread in the subframe of the car without welding

I decided to write about the replacement of the lower suspension lever. It turns out a sour bolt of the front silent block. this is the problem of the 21st century. Search engines stupidly give out the most difficult solution. to saw and cook a subframe. There is a simple way out, about him and the story The weather was warm, nothing portended trouble. A lever assembly was bought in advance. The vertical bolt unscrewed with the meter pipe. Horizontal did not go. Began to warm the nut through the hole in the subframe. I moved the third time. I will twist and twist, but the bolt does not come out. I work further, I hear a crack. a frame with an arc in the area of ​​the bolt hat. What a twist.

Bolt Zakis in the Sailytlock Blood sleeve. Turned up until the evening, but never unscrewed. The next day he burned the rubber and tried to warm the sleeve. The result is zero. The lever and part of the bushing. The scale of the problem became clear. corrosion for the entire length.

I only came up with cutting the remains of the bushings of the silent block.

Total minus 3 days per 1 bolt. Installed a new lever, collected the suspension without tightening the horizontal bolt. Put the car on the wheels, checked the tire pressure. Began to delay with a force of 100 nm and the bolt turned. Counted up to 10 and went home to smoke manuals.

It turned out 99.99% of all priests cut a subframe and weld a new nut. I found only one mention of a successful recovery using Heli-Coil (this is the name of the company, such as Xerox and Pampers) on the Hyundai car.

After analyzing the pictures of both subframes, I decided to try a threaded insert. cut and cook, in the garage of Uncle Vasya, I always have time. I ordered a remote assembly for M12x1.25

Take only a set-a drill and a tap for Heli-Coil of a non-standard size and there is no such in retail. Waiting Week and a new bummer. the tail brought 12.5mm, and the cartridge on the shurik and drill 0.10mm. I didn’t want to buy a new drill. I ordered a cartridge with adapters, so cheaper. Minus one more week.

Put the shaft with a hexagon. with it there is less a beating and the hole is rounder. Shurik did not take Chinese 12v, there was not enough moment. The drill entered as oil. He cut a new thread.

Heli-Coil himself screwed 3 times. For the first time, one of the turns at the very beginning of the thread fell into the gap (non.head) between the nut and the subframe. Geometry and thread step in this place changed and the bolt is not climbing. Do not try to get Heli-Coil-it’s useless. Just screw it up until it falls out on the other side. We get through the hole in the subframe.

The second time it turned out that the insert is longer than the thread. I had to twist and bite off 4 turns. The third time came normally. At the end, be sure, with the help of stray from the set, you need to break off the tail. If you do not make a bolt, resting into it and Heli-Coil will begin to get out by reducing the useful area of ​​contact. Unlike conventional threads, where almost 60% of the entire load hold the first 3 turns, Heli-Coil has everything differently. She needs at least 4, and better 5.

After circumcision, I got 6 turns. Collected the suspension. I dispersed a couple of times to a hundred with sharp braking and rolled down the bumps. Nothing has fallen off until nothing. I will observe further.

How to understand that it is time to replace

Before you intend to press these parts, first of all, you should be perfectly inspected to make sure that they really require replacement. Check if there are any holes and any deformations, whether the rubbers on hinges have swelled and whether there were cracks. Make manipulations with components, determining the presence of backlash. If the permissible norm is exceeded, then the replacement of parts is inevitable. It is not recommended to postpone the pressing procedure. Over time, this problem will only aggravate, it can lead to the failure of the suspension lever.

The main indicators that indicate a breakdown of one detail or several:

• It has become much more difficult to drive a machine.
• During overcoming irregularities, the suspension begins to knock loudly. Tires wear out unevenly, which was not previously observed.
• It has become much more difficult to regulate the collapse.

Necessary materials

To press this part at home, you will come in handy such tools:

It is recommended to use machine oil or other types of lubrication as lubrication.

Among other things, you will need special mandrels designed to press the silent blocks, as an alternative you can use a piece of pipe with the necessary diameter. You also need to acquire a press for pressing a new rubber.metal hinge. When it comes to home, an ordinary vise can serve as a press. In addition, you can stock up on a set of sledgehammer, however, with this approach, it is necessary to observe the high accuracy of the work.

We chop the bolt with a chisel

The work of the chisel requires special attention and certain skills:

• Precisely mark the desired contour with a special cheek on metal.
• If the thickness of the metal is such that with one blow to the chisel does not break it, then the bolt is clamped with a locksmith. Otherwise, you can shut on a thin rod right on a strong substrate or blacksmithing.
• It is necessary to ensure that the sponges are at the level of the mark. With a large thickness of the fishing line for a trimmer, a damper should be higher than the clamping device by about 4 mm.
• Open a chopping tool on a close sponge so that the angle is 30–35 0. And the sharp edge adjacent to the processed surface at about 45 0.
• Hammer blows should be short and accurate, in the “back of the head” area.

Important: you can not tighten the teeth handle in your hand tightly. Correctly hold the tool a little, striking evenly and gradually moving the chopping blade parallel to the sponges of the vice.

When it is not possible to cut the metal from once, the passage is repeated again. Sometimes it is more advisable to do this on the same marking, but from another side.

Note: a chisel is a rough tool, so when making a marking, you need to take into account the additional allowance along the length, t. to. After that you will have to process the edge with a file or emery.

We grind the bolt with a bar

The use of this device involves the targeted removal of the layers of metal due to the abrasive effects of emery stone. The procedure requires great patience, t. to. durable metal is difficult to manually process. For this:

• Bolt firmly squeeze in a vice with a hat down.
• Take the bar with two hands at the opposite ends.
• Strengthen the necessary volume of the metal surface, using uniform movements with great effort.

Attention! This tool is suitable in cases where it is required to just submit a little excess of the length of the rod.

How to press a silent block

Saylet Block enters the lever with effort. Therefore, just insert it into place. It is necessary either a special press that is used at a service station, or some simple tools used by craftsmen to press the silent blocks (see. video).

“Folk” methods there are several. But there is only one meaning: first you need to remove the old silent block, clean the seat on the lever, and press out a new. There are usually no problems with removing rubber, and it can be difficult to remove the outer clip (shell).

Before pressing the silent block, you need to remove the old

As an option-to make a neatly drank with a jigsaw (do not hurt the lever itself), and then with the help of a hammer and some kind of metal objects to knock out a sawn clip. Do not rush to throw it away. it may be needed when pressing.

Then the seat must be thoroughly cleaned, remove all burrs and sharp edges. The surface should be even and smooth. Then, if the silent block does not have an externally metal clip, its seat and the seat to facilitate the process grease. There are two options: use soap (soap solution), silicone grease (suitable for silent blocks of polyurethane) or lithium.based lubricant (with an iron clip).

Next is the process itself. Someone uses a vice and a sledgehammer, someone is only a vice. The easiest option: to reconcile the sleeve relative to the seat and the sledgehammer to drive it into place. But this method requires a certain dexterity. In the absence of experience, it is easy to damage not only silent block, but also the part into which it should be inserted.

A slightly more complex option: to fix the lever in a vice, re-center a new sleeve, instruct an old metal clip on top of it, some device on which you can beat with a sledgehammer or hammer on top. We reconcile all this and begin to drive the sleeve in place with a sledgehammer.

Instead of strokes of sledgehammer, you can use the force effort. Then you have the whole structure in a horizontal plane, pressed with a vice. Firmly shaking the lever or another part, where you press the silent block, clamp the vice until the sleeve is in place.

Pressing methods

Saylet Blok is inserted into the pendant lever with a fairly significant effort. You can’t do without special devices in this matter. At the maintenance stations, special presses are used. If you do not have this, you will need tools that are usually used by Umelian motorists for pressing.

To correctly press the silents on your own, stock up on:

You will also need special settings for pressing. The press can be replaced with ordinary vice. Swearing can also be useful.

The first

The best way to install silence, as in the extinguishing, is to use a vice.

• Carefully clean the part with sandpaper, and then process the seat. It is necessary to remove the rust from the extracted part.
• Generously smear the eye with a lubricant, for example “lithol”. If it is not at hand, you can do with a soap solution.
• Install the lever, put the silence on top and through the mandrel, carry out pressure on the press on the metal spacer. She will gradually drive the spare part to the right place.

Second

If your garage does not have a press, you can press a silence by means of a jack or a vice. Their principle of work is almost the same as that of the press. First install a lever, then a sleeve and a spacer. Then, using the power of a vise or a jack, they press the part in the lever.

Third

If the silence is small in size, it can be returned to the place with a coaching press, through which it was pulled out of a raised place. The principle of work is performed. as when extinguishing. For pressing, a hairpin and a thickened washer are used.

Fourth

This method is based on the use of physical strength. Details are pressed through a strong sledgehammer. Experienced motorists and masters do not recommend applying this method of pressing. The part in this way may be pressed, but the result and quality of the work performed are unpredictable.

To put the knot, a silence is placed on the lever, and then they are rapidly and with great force hit it on it. From a strong blow, the detail will enter the lever.

The method of pressing with a sledgehammer has many shortcomings:

• It is difficult to ensure the right movement of the part, it can crookedly enter the landing site;
• There is a “sequel” of rubber;
• There is a risk of lever and silent deformation.

It is extremely problematic to keep shocks with a sledgehammer under control. Often, after such crimping, you have to turn to a service station in order to redo the wrong job. Before you take up the sledgehammer, you should carefully weigh your abilities.

Fifth

This method is based on the use of its own car weight. To implement this method, stock up on a hydraulic or screw.shaped jack.

• Put the jack under the car and remove the wheel.
• Put a lever with a new silence under the hub.
• Gradually lowering the jack, make a pressing the weight of the car.

Minus of the method. unsafe and complexity of execution. The control of the proper landing of the silence is also complicated.

Drill a broken bolt with a drill with a left spiral.

There are drills with the left spiral, they have a drilling of metal during rotation counterclockwise. At first, you can drill the centering with a regular drill of a small diameter, then gradually drill the body of the wreckage with a left drill of larger diameter. It is necessary to control the direction of drilling so as not to damage the thread. At the same time, the remains of the fragment will be twisted themselves, since the drill with its faces clings it in the right direction to unscrewing. If the thread is still slightly damaged, then it is easy to correct it with the appropriate tap.

All of the above methods of twisting can be suitable for slightly rusted bolts. If he became very stuck in his threaded connection, then in this case you need something more serious.

We unscrew the fragment with another bolt.

This method may not be suitable for all situations, as it requires an additional tool that not every master will have. Also for fragments of small diameter, this method is also not suitable.

The essence of this method is to drill a hole under the thread of a smaller diameter in the center of the debris in the center than the debris diameter. Then we cut the left thread with a tap in the hole and screw the bolt with the left thread. Now if it twists it counterclockwise, it will twist it tightly into the fragment and at the same time twist it.

Sixth method: drill a fragment

The method is to choose a drill along the lower diameter of the hairpin and drill it. A very difficult way, requires dexterity.First we pass by a smaller drill.

Seventh Method: Sprinkle under clean and make an insert

The most time.consuming and costly way of all. But there are times when this is the only working option to return the node to working condition.Sprinkle the hairpin with a thread with a thread.

This can be finished if the design allows you to choose a thicker bolt or hairpin now. If not. We buy an insert or order from a familiar locksmith.Lubricate the outer thread with a thread with a thread and screw.

We grind the flush.And how did you use? Write in the Комментарии и мнения владельцев, I think your experience will be interesting! All the best!

How to cut bolts on silent blocks

Sergey, welded a reverse hammer for 500g did not help cut the hat and knocked it up for a long time for 40 minutes at the top there is enough distance to get out. There, at the top of the tube, the brakes have it so that but not rest on them

Sergey Potapov

Sergey Potapov

Sergey Potapov answered Maxim

Maxim, I unscrewed the nut. the bolt with Salentlock is spinning. why I do not understand how it can be broken off. Maxim, in my opinion you almost catch up with what we are talking about.

Sergey, damn it. Really stupid. I thought the wrong bolt. When I changed the rear silent block of the front lever, I resorted to the complete removal of this lever.

Sergey Potapov answered Alexander

I also once rusted this bolt to the silent blocks, when unscrewed, the hat with a thickening curled up and fell off, there was no welcome to something, since I was deeply curled up. The usual peorator helped in a bolt dutation mode as the clock went up

Sergey, nothing helped. And scrap and hammer reverse and t.D.And how I got it saw a bolt Zakis in this aluminum sleeve.In a different way, it would not have happened)!It’s like mine !)

Sergey Potapov answered Alexander

Alexander, so we will cut

Sergey, I tried a lot of hammer and beat just broke the seat but only helped the canvas on the metallo.You release the front silent block, on this bolt you cut off the bottom with the corner grinder further the lever and the canvas cut the bolt then then extends under a slight effort.Take 2-3 canvases can break and gloves

Sergey Potapov answered Vadim

How to cut bolts on silent blocks

Igornya

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Airman

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Airman

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German

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Silent rear nut in Langeron So they want to shine it from there. I change the first time and they know about it about a hundred! I would not want to harm the car and the cat in vain.

Cardan

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German

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I want to go to another hundred try to change there, but it will most likely be next week.

And then the steering rack was changed on this, so I had to buy the entire Gur pipeline (600 UAH original) only because they could not unscrew the phone from the old Reyka! So I collected these tubes throughout Ukraine, the Dnieper, Kyiv is shorter than the kapets, and now they tell me that besides cutting a hole in Langeron and then it would not be all to brew! Let’s see.

Axill

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To unscrew the rusty bolt, you can take a small gas burner, there are such, such as s, warm it up, then cool sharply. RZHA is pushing, you will twist your hands with your hands.I would put a metgum and would not fool around. Good silents, more than 30 thousand. Passed and approx. And don’t fool around with anything.

German

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Group: Users Posts: 103 Registration: 29.eight.2012 Age: 32 Contact Nick Quote User No.: 3229 Thank you: 9 times (a)

To unscrew the rusty bolt, you can take a small gas burner, there are such, such as s, warm it up, then cool sharply. RZHA is pushing, you will twist your hands with your hands.I would put a metgum and would not fool around. Good silents, more than 30 thousand. Passed and approx. And don’t fool around with anything.

Edik