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Old 07-31-2009, 09:25 PM   #1
mangofreshh
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Default Nail in tire

I have a nail in the stock sti potenza tires (summer only). Would you guys plug a W rated tire? I know you 'shouldn't' but it shouldn't cause too much harm? thanks.
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Old 07-31-2009, 09:42 PM   #2
ZoneMaster
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I don't see the harm in it, just keep an eye on the air preasure for a bit. As long as it holds air okay you should be fine.

In some ways, I think the stickier tires are better for plugging. My brother's SO3s had 3 or 4 nails between the two backs and never leaked air, even with a track day and a number of highway miles. He didn't find them until he went to by new tires.

-Cory
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Old 07-31-2009, 09:56 PM   #3
Big Poppa Pump
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My buddy did it, it was fine. Just do it, I wouldnt worry too much. Well I shouldnt say that Im not positive it was a W.
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Old 07-31-2009, 10:27 PM   #4
mangofreshh
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Quote:
Originally Posted by ZoneMaster View Post
I don't see the harm in it, just keep an eye on the air preasure for a bit. As long as it holds air okay you should be fine.

In some ways, I think the stickier tires are better for plugging. My brother's SO3s had 3 or 4 nails between the two backs and never leaked air, even with a track day and a number of highway miles. He didn't find them until he went to by new tires.

-Cory
First, thanks all.

I'm not concerned of it not holding air but the fact, you aren't supposed to plug z, y and w rated tires. I just plugged it but i probably wouldn't have plugged it if it was a Z rated tire. But just concerned on my performance ability as for that tire. It is a summer only performance tire, that's why it is a W rated. I'm just wondering is it okay to take those nice fun back roads with this stupid (now plugged tire).

I HATE NAILS!
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Old 07-31-2009, 11:06 PM   #5
RedefinedTR
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I had my tire pluged about a month ago. Taken it to the Autbahn on that tire, about 4 auto X races, and drive on it every day. BUT.... I took it in to the retread shop I work for, they pluged it the way the plug semi tires. They actually inject molten rubber into the hole. Yea crazy right, than they put a small patch on the inside as well. Most tire shops have no way of doing this, but if you take it to your local Bandag Retread tire shop (well it actually needs to be a Retread factory) they have the equipment to do this and do it well. It is a really neet process. I will have to take pics down stairs some day when they fix a hole in a tire, and we can fix some BIG holes.
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Old 08-01-2009, 04:07 AM   #6
Reaper04
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well its not that you not suppose to plug z, y, or w tires. it comes down to the manufacturer of the tire and what they recommend. for example if you run a Michelin PS2 which is z rated you can only have one fix per tire b/c it drops the speed rating. i also recommend that you go to a tire shop that knows what they are doing and not getting one of those kits that you do yourself where you plug the whole with a peace of rubber. and stay away from fix-a-flat that stuff is crap! at my shop we use a plug and patch combination as well as an inner tire sealer to do the job.
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Old 08-02-2009, 10:21 PM   #7
seattle944t
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^^
You can patch/plug any tire. But you lose the speed rating when you do it, so maybe that is where you heard you can't plug a z,y, or w rated tire.
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Old 08-04-2009, 03:46 PM   #8
vetteboi88
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I always plug AND patch my performance tires. Never had a problem
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Old 08-04-2009, 08:49 PM   #9
ritky
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The manufacture takes no responsibility or claim of a tire's speed rating after it has been pluged/patched. Drive at high speeds at your own risk.
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Old 08-05-2009, 02:20 AM   #10
littlec
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where exactly was the nail though? have pictures?
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Old 08-05-2009, 04:08 AM   #11
lumberchicken
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i had nails knocking on my door at 3am, asking if they could pone my 615s
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Old 08-05-2009, 10:10 AM   #12
Luke@tirerack
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when properly repaired there is no effect on the speed rating of a tire ....

Quote:
Originally Posted by TireRack.com
Any repair attempted without removing the tire from the wheel is improper. Without inspecting the inside of the tire for hidden damage comes the risk of returning a weakened tire to service. Punctures in the tread area that looked repairable have revealed upon further investigation that the object that punctured the tire had been long enough to cut the tire's sidewall from the inside. Without dismounting the tire, the hidden damage would have been missed.

Simply plugging a tire from the outside without removing the tire from the wheel is improper. (If a tire is punctured while off-roading far away from civilization and a spare tire isn't available, a plug may serve as a temporary low speed solution that must be replaced with a proper repair as soon as possible upon returning to the road.)

Additionally, any repair that doesn't completely fill the path the object took through the tire is incomplete. While a patch on the inside of the tire reseals the innerliner, it does not fill the path of the puncture. This will allow moisture to reach the steel belts and/or the casing cords causing them to rust or deteriorate.

There are many different rubber compounds used in a tire. The tire's innerliner uses a special rubber compound that has the ability to better retain air. Once punctured, the innerliner must be cleaned, buffed, cemented, patched and coated to assure its ability to retain air has been restored. Since this can only be done from inside the tire, it's another reason that a plug-only repair is improper.

Continuing to drive on a tire with a slow leak may allow moisture to seep around the object and into the tire. This will reduce the probability that the tire can be repaired properly because the moisture will ultimately reach the internal steel and fabric cords used to reinforce the tire and possibly cause rust and loss of strength. To assure reestablishing a watertight seal the injury must be cleaned with a specially designed cutting drill that removes rust and sizes the injury properly to accept the rubber stem of the patch. Cemented in place, the stem will vulcanize with the tire to help prevent moisture from reaching the tire's reinforcing cords from the outside.

While indoor laboratory tests have shown that freshly punctured and properly repaired speed rated tires can still achieve high speeds, it is not recommended that repaired street tires, or punctured DOT-legal competition tires and racing slicks be used for track events.

How do you know which procedures a tire dealer uses? Ask them! But be aware that if they say they can repair a tire in 10 minutes for under $10 dollars without removing it from the wheel, they aren't following the Rubber Manufacturer's Association procedures. A correctly done flat repair that follows the multi-step repair procedures will take approximately 30 minutes and probably cost around $20. Driving on an improperly repaired tire is dangerous because it can further damage the tire and/or allow its strength to deteriorate over time. An improperly repaired tire driven at high speeds may suddenly fail, causing loss of vehicle control. Additionally, the use of an innertube as a substitute for a proper repair generates additional heat and should not be considered.
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