How to plug a punctured tire


How To Use A Tire Plug Kit The Right Way

Posted by Jefferson Bryant Know How

Flat tires tend to happen at the worst time in the worst places. If you are on the road or outside of normal business hours when your vehicle has a flat and the spare is missing or no good, you might feel stranded, but there is an option—a tire plug kit. This is something that anybody can do, you just need the right parts.

Liquid tire repair might get you down the road, but it could make your tire repair difficult and possibly damage the TPMS (Tire Pressure Monitor System) unit inside the rim itself depending on the formula. The best solution for an emergency tire repair is a tire plug. Made from cork and a gooey adhesive that keeps it place and seals the tire, a tire plug repair is an excellent way to get your car back on the road until you can get to a tire shop for a proper internal patch.

Installing a plug in your tire works for pierced tread area only. You cannot fix sidewall damage, compression breaks (from potholes, gravel roads or curbing) or any other type of catastrophic tire damage. The most common road hazards you will find are punctures from nails and screws. Fixing these issues are perfect for the good old fashioned tire plug. If you are wondering how long does it take to plug a tire, then the answer is just a few minutes. Most of the time is spent preparing to perform the plug itself. Here’s how to plug a tire with a plug kit.

These are the tire plug kit tools you need for an emergency tire repair, which you should keep in your vehicle along with a 12-volt compressor. Starting from the left are diagonal side-cutters, tire plugs, reamer, tire plug insertion tool, and a knife.

Tire Plugging Supplies

You will need the following to make a tire plug repair:

  • Tire plug kit
  • Pliers, preferably needle-nosed or diagonal side-cutters
  • Compressed air to refill the tire

There are all kinds of tire plugging kits, but you want the most complete tire repair kit which comes with the plugs, the installation tool, and the reamer tool. Some flat tire repair kits just come with the plugs and installer, but the reamer tool is a necessary component to a good repair. Some tire plugging kits also come with liquid cement. You can use it or not, but the cement helps make a more permanent repair.

How To Use A Tire Patch Kit

Step One – Find The Leak

Locate the puncture. If you don’t see or hear the puncture, spray some soapy water on the tire and look for bubbles.

This is a small staple that was dropping tire pressure by 20 psi in about 12 hours. It needs to go.

Step Two – Remove The Foreign Object

Remove the offending item. This is usually easy, but sometimes the nail or screw is worn down, making it hard to get a bite on it. This is where the side-cutters come in really handy. You will want to position the tire where you get the most leverage.

Side cutters work best for removing these items, as they can grip small round objects better than regular pliers.

Step Three – Prep The Area

Insert the reamer. This will take some effort, as you have to push it through the steel belts. Use a twisting motion and push it into the tire. Once the reamer is through, saw it in and out of the tire a few times to really make a nice hole for the plug. Yes, it is counter-intuitive, but it is necessary.

The reamer requires some effort. You will hear the belts scrubbing the reamer as your break through.

 

Push the reamer all the way and then saw it in and out a few times to make a clean hole.

Step Four – Prepare The Plug

Prep the plug and installer. Pull a plug off the strip and push it through the eyelet of the installer tool. The pliers will make this easier. Push a little through, grab it with the pliers and pull the plug halfway through the eyelet.

Pull a cork strip from the tire plugging kit and grab the installer tool, which looks like a large needle with a slit in the eye.

 

Threading the sticky cork tire repair plug is not easy, but if you can get it squished into the hole, you should be able to pull it on through. The side cutters might help.

Step Five – Insert The Tire Plug

Insert the plug into the tire. If the kit has liquid cement, apply some to the plug before inserting it into the tire. Simply push the installer into the hole in the tire until the plug is about 3/4 of the way in. Twist the installer tool 90-degrees and pull it out. The plug will stay in the tire and the tool will come out nice and easy. You may trim away the excess plug or leave it to wear away as you drive.

Push the tire plug into the hole. Don’t twist the plug as you push it in, just go straight down and stop when there is about a 1/2-inch exposed.

 

This is what you should see when the tire plug is installed.

 

Once the tire repair plug is in you can now twist the handle 90-degrees and pull the tool out.

Step Six – Air Up The Tire

Fill the tire to the proper PSI. If you have a portable air compressor, this will make things easy. However, if you do not, you need to get air very soon.

All done. You can trim the tire plug or leave. You will need air, so don’t go driving until you have the tire aired up.

Every automobile you own should have an emergency tire plug repair kit in the tool box, along with a portable air compressor. These emergency repairs are quite good, but for a long term repair, you should take the vehicle to a tire shop for a proper repair as soon as possible. They will know the best way to patch a tire for your type of damage.

Check out all the steering & suspension parts available on NAPAOnline or trust one of our 17,000 NAPA AutoCare locations for routine maintenance and repairs. For more information on how to use a tire plugging kit, chat with a knowledgeable expert at your local NAPA Auto Parts store.

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emergency repair, flat tire, flat tire repair, patch flat tires, sealant, tire maintenance, tire plug kit, tire pressure, tire safety, tire wear, tires, wheels

A life-long gearhead, Jefferson Bryant spends more time in the shop than anywhere else. His career began in the car audio industry as a shop manager, eventually working his way into a position at Rockford Fosgate as a product designer. In 2003, he began writing tech articles for magazines, and has been working as an automotive journalist ever since. His work has been featured in Car Craft, Hot Rod, Rod & Custom, Truckin’, Mopar Muscle, and many more. Jefferson has also written 4 books and produced countless videos. Jefferson operates Red Dirt Rodz, his personal garage studio, where all of his magazine articles and tech videos are produced.

How to Repair a Flat Tire with a Safe, Permanent Fix

So, you have a flat tire or one that’s leaking air. It’s not the end of the world. Luckily there are safe and cost-effective ways to properly repair most tire punctures. The purpose of this article is to show you the difference between a safe, permanent repair and a temporary string, plug or patch repair.

According to the National Highway Traffic Safety Administration (NHSTA) and the Tire Industry Association (TIA), the only method to properly repair a tire puncture is to fill the injury with a repair stem and back the stem with a repair patch. This is commonly known as a combination repair or a patch/plug repair.

Patch/plug repairs are most often performed using a one-piece repair unit that combines the repair stem and cap (or patch) into one unit. However, special circumstances may require the use of a two-piece combination repair (ex. If the angle of the puncture exceeds 35 degrees). The repair is then permanently bonded to the inside of tire and through the injury channel using a cold, chemical vulcanizing process. The repair essentially becomes part of the tire, creating an air-tight seal that keeps air in and moisture and contaminants out (more on this procedure below).

Tire Plugs and String Repairs are Temporary Repairs

Emergency roadside plug repairs are NOT intended to be a permanent tire repair. Plugs and string repairs are designed to get you back up and rolling long enough to get home or to the nearest service center to perform a proper tire repair.

The common misconception with plug and string repairs is that because they hold air, they are safe to use. While it is true that many plug repairs do a great job of keeping air in the tire, that’s only part of the equation. Because they’re not completely sealing the injury, plug repairs may allow air and moisture to penetrate the body of the tire. Over time, this could lead to a dangerous (or even deadly) blowout.

A Patch-Only Tire Repair Leaves Your Tire Susceptible to Damage

A tire repair that uses only a patch is also NOT considered proper or safe. A properly installed patch will do a great job of allowing the tire to hold air. However, similarly to the plug-only repair, the patch does not fill the injury channel. Therefore, air and moisture could seep into the tire from the tread surface and eventually damage the tire.

The Proper Tire Repair Process According to Industry Guidelines

Only a proper patch/plug repair completely seals the puncture from inside the tire and through the entire injury channel. There are a few extra steps necessary to perform a proper tire repair in accordance with industry guidelines. We’ve developed a simple acronym to help organize and remember the steps: R.E.P.A.I.R.

  • Remove: To begin, the tire must be removed from the wheel assembly. This allows for a thorough inspection of both the inside and outside of the tire.
  • Evaluate: With the tire removed from the rim, the puncture can be thoroughly evaluated to determine the size and angle of the injury. It can also be determined if the puncture did any significant damage to the cords or belts.
  • Prepare: Once the tire has been determined to be in good enough condition to repair, it is time to prep the rubber surfaces to remove any damage and contamination to allow for maximum repair unit adhesion. First, the injury is drilled out using a carbide cutter to strip away and damaged cords or belts. Next, the inner liner is cleaned and buffed to a slightly rough texture. This also helps maximize adhesion of the patch/plug repair.
  • Apply: The next step is to apply vulcanizing fluid through the injury and to the buffed area of the inner liner. It is then allowed to air dry for 5-10 minutes.
  • Install: The one- or two-piece repair is installed through the injury channel and the patch portion is thoroughly stitched to the inner liner using a tire stitcher to completely push out any air that may have gotten trapped under the repair. The over-buffed area of the inner liner is treated with a thin layer of rubber sealant, and the excess repair is trimmed to approximately ¼” above the tread surface.
  • Return to Service: The tire is now ready to be remounted to the rim, inflated, balanced and mounted back on the vehicle.

When is it Safe to Repair Your Tire?

There are a number of factors that may determine whether or not your tire is safe to repair. These factors fall into three main categories:

  • Placement of the Injury: For passenger tires, puncture repairs must be within the crown area of the tire. Damage to the shoulder or sidewall cannot be repaired.
  • Size of the Puncture: For fabric-ply passenger and light truck tires, the maximum repairable injury size is ¼” (6mm). For steel belted light truck, medium and heavy-duty truck tires, the maximum injury size is 3/8” (10mm).
  • Overall Condition of the Tire: The condition of your tire may determine whether it is safe to repair. Excessive wear, casing separation, impact damage and other conditions may make it unsafe to properly repair your tire. For a more comprehensive list of repairable vs. non-repairable conditions visit our blog Can Your Tire Be Repaired?

Conclusion:

The occasional flat or leaky tire is an unavoidable part of life. But, taking shortcuts to repair it can be dangerous to you and your passengers. Take the time and do the research to do the job right and/or find a reputable tire repair shop trained in proper tire repair procedure.

What to do if a tire is punctured and what are the ways to repair it

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Author: Aleksey Kokorin

Experienced drivers are not surprised by such a trifle as a puncture, but for the first time beginners usually get confused in the sequence of actions, forget about important details and do not know what to do with a punctured wheel even in a tire shop - especially if they start offering choose from several options or intimidate with expensive repairs. Let's set up an operation algorithm when a flat tire is detected and figure out what to do right away and what to choose later.

What to do when you find a puncture

Having found a flat tire, first of all you need to stop in a safe place, turn on the emergency alarm, assess visibility and, if necessary, set an emergency stop sign: according to traffic rules, it is installed at least 15 meters from the car in built-up area and at least 30 meters outside the built-up area. When choosing where to stop, consider the space to the side of the vehicle to handle a flat tire. You should not stop right on the road and in places where stopping and parking are prohibited: even if a punctured wheel belongs to the conditions of a forced stop, it is quite possible to drive several tens of meters on it to choose a safe and convenient parking place. At night or in conditions of limited visibility (for example, in fog or rain), it is imperative to wear a vest with retroreflective elements - this is required by clause 2.3.4 of the SDA and common sense.

Now you can start working on the wheel. We will sequentially consider several options for action, and then move on to ways to repair a damaged tire.

The most obvious solution to a flat tire is to replace it. If you have a spare tire that you are sure is in good condition, the best option would be to install it and visit a tire shop to repair a punctured tire - such repairs will be more reliable and of high quality than doing it yourself.

If you don't have a suitable spare tire, but you do have a pump or compressor, you can assess the damage to the tire and try to pump it up again to get to the tire shop. It is better to start searching for an air leak with a valve (aka “nipple” or “nipple”): often a faulty spool becomes the cause of a flat tire. It is easy to check it: unscrew the protective cap (if there is one), pour water on it (or slobber it, as in childhood): air bubbles will leak. In this case, you can try to replace the spool valve by unscrewing it and screwing in a new one, but if there is no new valve, as well as a store nearby, you can try just unscrewing and screwing it back in. Regardless of whether it helped or not, you need to visit a tire shop to replace the entire spool or valve.

If the valve is tight and the tire is flat, it is most likely a puncture. The easiest way to find a puncture that is free of foreign objects is to pour water on the tire while looking at the surface: the damage will reveal itself as air bubbles. However, often the cause of the puncture can be found along with it: a self-tapping screw, nail or other arbitrary object sticking out of the wheel will clearly indicate the place of depressurization. In this case, you do not need to immediately remove the foreign object from the tire: it partially seals the hole, and if the pressure loss is slow, you can try to pump up the wheel and drive to the tire shop.

The same goes for wheels that are leaking from the rim or from a faulty valve. Usually, in this case, the air is bled slowly, and you can pump up the wheel and have time to get to the place of repair. By the way, rim leakage can occur due to disk deformation upon impact - for example, when hitting a pit with sharp edges. Such situations are fraught with damage to both the disk and the sidewall of the tire, in which case the disk will need to be corrected, and the tire repaired or even replaced. To avoid rim leaks, you need to inspect the rims every time you change tires. The loss of tightness occurs either due to corrosion or due to disc deformation, and not only steel, but also light alloy wheels can corrode. So if you see paint blistering or rust on the rim, the tires need to be put on rim sealant: when changing tires, this will be cheaper than the subsequent removal and re-tire to fix a leak on the rim.

If you find a puncture, but there are no foreign objects in it, and you do not have a spare wheel and tire repair kits, there is another popular method of temporary "repair". You can screw a self-tapping screw into the found hole - if, of course, you have one. In extreme cases, you can look for a self-tapping screw in the cabin by unscrewing it from some interior detail. This method cannot be called reliable: it is unlikely to ensure complete tightness of the wheel, but at least it can help you get to the nearest tire shop.

And a couple more useful remarks. If the wheel is completely flat, then it is easier to inflate it without a spool: the latter must be unscrewed, then the tire must be inflated and quickly screwed back in. The fact is that the spool itself, when inflated, resists the compressor, and in the event of a loose fit of a flat tire to the disk, the power of a simple magazine compressor may not be enough, and the absence of a spool helps to increase air flow and facilitate the operation of the compressor. If this does not help, you can jack up the car by hanging a flat tire: this will improve the fit of the tire to the disk, and the chances of inflating the tire will increase.

On-Site Repair Methods

Now let's look at options for repairing a tire yourself using special materials that you should carry with you or, if a puncture caught you in the city, buy it at the nearest auto shop.

1. The most common, cheapest and easiest way to do it yourself is to install a raw rubber band. The harnesses are sold complete with an abrasive awl to expand the hole in the tire and improve the contact of the repair harness with its edges, as well as a needle for installing the harness and an adhesive to fix it and at the same time seal the puncture. When choosing a repair kit in a store, you should pay attention to the following nuances:

  • the abrasive awl should not be too "toothy" to avoid damaging the cords - it should just push them apart and lightly work the edges of the hole;
  • the kit must have glue - without it the tourniquet will hold in the hole worse, and there is a possibility that it will poison the air;​

Install the harness in the following order. First, the found hole is expanded with an abrasive awl - you need to insert and remove it several times into the puncture site. Then the tourniquet is inserted into the eye of the needle, and glue is applied to it. After that, the needle with the tourniquet must be inserted into the hole in the tire and pulled out sharply - so that the tourniquet remains in the hole, and the needle comes out without it. If everything worked out, it remains only to cut the end of the harness flush with the surface of the tire and pump up the wheel.

The advantages of repairing with a harness are quite decent reliability, simplicity and low cost. On a well-repaired tire, you can drive for a long time, and if the repair site starts to poison, you can either replace the harness or have the tire repaired in a quality service. Among the minuses is the possibility of damaging the cord during installation, as well as lower reliability compared to “full-fledged” repair methods in a tire shop. Strictly speaking, a tourniquet is still a temporary repair, so if it is possible to pump up a wheel and get to a tire fitting, then it is better not to enlarge the hole in the tire and get to the experts.

2. The second repair option is aerosol liquid sealants sold in cans. To repair a punctured tire with sealant, you need to remove the foreign object from the puncture site, then pour the sealant into the wheel through the valve, twist it to distribute the composition inside the tire, pump up the wheel and drive several kilometers at low speed for the final uniform distribution of the sealant.

Among the advantages of this repair is the simplicity and less labor intensity compared to installing a harness. However, there are also disadvantages: the larger the hole, the higher the chance that the sealant will not be able to eliminate it, and such a repair can affect the wheel balance. Compared to a tourniquet, it can be considered even less reliable and preferable, but simpler.

Repair options at a tire shop

If you put on a spare tire and brought the wheel to a tire shop, you may also be offered several repair options. Consider the most popular with an indication of the advantages and disadvantages.

1. The first repair method is the same harness installation as described above. As we remember, the tourniquet refers to a temporary repair, so among tire specialists this method is considered bad form, but many workshops do not exclude it from the list of services. All the advantages and disadvantages are the same here: such a repair will be the fastest, simplest and cheapest, but less reliable than other methods. It is worth choosing it in cases where the price and / or speed of the procedure is more important to you than anything else. If quality is a priority, then it is better to fork out for the options listed below.

2. The second option for repairing a puncture is to install a patch on the inside of the tire, the so-called cold vulcanization. In this case, the tire is removed from the disk, the surface around the puncture is treated with an abrasive, and the damage is sealed with a special patch. This is a more preferred repair method than a tourniquet: it is more reliable and durable, especially in the case of side punctures, when not the thick tread part of the tire is damaged, but the thinner sidewall. Among the minuses, only a higher cost can be noted: in addition to the actual tire repair, you will have to pay for the removal and installation of the wheel (or do it yourself), tire fitting and balancing.

3. The third option is a "complex" of the first and second: installation of the so-called repair "fungus". The “hat” of the fungus is a patch, and the “leg” is threaded from the inside of the tire to the outside. After gluing the patch, the excess part of the leg is cut off, as in the case of the tourniquet. Thus, not only the inner surface of the tire is closed, but also the hole itself. The advantages and disadvantages of this repair method are generally the same as those of a patch.

4. An extreme, “emergency” measure when repairing a punctured wheel is to install a camera in it. Typically, this method is used for tires that are no longer worth repairing, or “for reliability” after repairing a complex puncture. It should be understood that almost all modern tires are tubeless, that is, they are not designed to install a camera, so it’s not worth driving a wheel repaired in this way for a long time. Installing a tube is a temporary solution for riding until a new tire is purchased, and sometimes such wheels are left as spares. So this repair method can be kept in mind as a backup.

Finally

We have deliberately left out of this text such methods as combined repair of tires with a tourniquet and a patch and hot vulcanization. The first is used quite rarely and for specific damage, and it is enough just to know about its existence. Well, the second is used to repair serious side cuts, and it is not only rare, but also very expensive. The cut site in this case is prepared, filled with raw rubber and processed with a hot press for vulcanization. Equipment for this procedure is not available in every tire shop, and the cost of repair can be about half the cost of a new tire.

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How to seal a tubeless tire quickly and easily - Life hack

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An easy way to quickly restore tire tightness and continue your journey. True, for this you need to have the right wheel repair kit with you.

Maxim Stroker

“Catching” a nail, screw or piece of wire in a wheel on the track is a trifling matter and somewhere even everyday. However, it turns into a serious "trouble" if this happens, for example, at night or a couple of tens of kilometers from the nearest tire fitting point. In theory, in this case, you need to put a spare wheel and go further. Although, in the case of a family trip on vacation, the process of digging it out from under a pile of junk in the trunk can turn into an adventure that deserves a separate story. Be that as it may, often the trouble does not come alone and the spare tire can be broken literally on the next kilometer. After all, where one carnation fell on the road, there may well be another one, and another, and another ...

With a couple of crippled wheels, you'll either have to wait an unknown amount of time for a tow truck to be sent in, or fix it yourself. Therefore, in a not particularly urbanized area, it makes sense to carry a repair kit with you to eliminate punctures in tubeless wheels. In principle, it can be of any manufacturer. The main thing when choosing it in the store is to make sure that the “drill” included in the repair kit is not very toothy and sharp. After all, his task is simply to clear a puncture hole in the tire, and not to break its metal cord. The second recommendation: the flagella, which are supposed to close the puncture hole, should be plump and reinforced with thin wire or plastic threads.

n-i.kiev.ua

And the third criterion for choosing a wheel repair kit is the obligatory presence of a tube of glue in it. Yes, yes: there are also “glueless” sets on sale, which are essentially useless.

So, we notice that the wheel is flat (or has already blown off) and proceed to eliminate the problem. Most often, the hole in the rubber is not visible. Therefore, to begin with, we hang out the damaged wheel by raising the car on a jack, and inflate it with a pump or compressor to 3-4 atmospheres. If even after that it is not possible to detect damage by the whistle of escaping air, we methodically and consistently wet the entire surface of the wheel and look for bubbles at the puncture site.


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