Tire Sidewall Damage - Scraped
05-27-09, 01:45 PM
#1
Tire Sidewall Damage - Scraped
Hey all, I purchased a set of used oem wheels/tires for my sc300 and recently had a chance to put them on. Before buying them, I briefly looked at all the wheels/tires and did not notice any issues. As I was checking the tire pressures today, I noticed one tire had a uniform scrape around the tire. I was wondering if this would make the tire unsafe to drive on. What do you all think?
Tire with no scrape
Tire with scrape
Tire with no scrape
Tire with scrape
05-27-09, 02:08 PM
#2
iModerate
It was driven on while flat. Generally there will be matching damage on the inside from having the vehicles weight pinch it between the road and the wheel. Sorry to say that tire is considered unsafe.
05-27-09, 02:18 PM
#3
Thanks for the insight. Never thought of it and you are probably right since that tire was patched up.
I am mainly going to be driving local streets for the next few days so do you think it can wait until the weekend or should it be changed out right away?
I am mainly going to be driving local streets for the next few days so do you think it can wait until the weekend or should it be changed out right away?
Last edited by TheMole; 05-27-09 at 02:27 PM.
05-27-09, 02:31 PM
#4
iModerate
The reality is that people drive on tires in much worse then that every day with no issues, some foe the life of the tread. I will not recommend it but more then likely you will be fine. Of course avoid any high speeds. Also check the inside and make sure it is not worse and therefore much more dangerous.
05-27-09, 03:08 PM
#5
yup... as stated, was driven on while low on air pressure...
I wouldn't drive any faster speed than you feel comfortable handling a blow out...
the reality of it is that the tire will probably be ok, but you never know, and I've seen tires like that fail pretty catastrophically...
I wouldn't drive any faster speed than you feel comfortable handling a blow out...
the reality of it is that the tire will probably be ok, but you never know, and I've seen tires like that fail pretty catastrophically...
05-27-09, 04:17 PM
#6
They were a pretty good deal for wheels and tires so can't complain much. Anyone have a good 225-55-16 Michelin pilot xgt-z4 laying around? I believe they are discontinued so what are the chances lol. Guess I have to find a pair of tires or put the supra na wheels back on. Thanks alot for the input fellas.
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06-04-09, 09:24 PM
#8
here's why:
tires are built in layers right... there is the tread layer, reinforcement strips, belts, inner liner, just to name a few... once all these layers are assembled, the "green" tire is put into a mold in which a inner tube like bladder inflates inside the tire pushing it into the mold... this bladder is filled with hot water and steam at varying temperatures for varying amounts of time - this causes a reaction between the different layers of the tire and it vulcanizes them to one another... this is why heat is the main killer of tires - heat like that put back into the tire will also cause it to come apart (the main cause for separations is heat in an area that wasn't fully cured)... so, what do we know about running a tire low on air pressure - it's the same as running a tire overloaded, and both situations leave the tire running much hotter than it was ever intended to be run... that groove on both sides of the tire is not a mechanically made groove - it is not where the tire was contacting anything, including the ground - it is where the tire built up the most heat and started breaking down, both externally and internally - when I say internally, I mean the parts you can't see - the layers inbetween the outer skin and the inner liner...
this is why it is bad to continue using a tire, any tire, that has been used while underinflated - many times it is just asking for a problem, and most of the time it's a blowout that is the end result... 99 times out of 100 that people claim they had a blowout, was actually a low on air tire that blew out because it overheated, the other 1 out of 100 was actually a defective or faulty tire... these are not true ratios, but are a reflection of the number of faulty tires vs. leaky tires that failed in my experience...
06-05-09, 07:54 AM
#9
iModerate
while good in theory, your argument doesn't hold up...
here's why:
tires are built in layers right... there is the tread layer, reinforcement strips, belts, inner liner, just to name a few... once all these layers are assembled, the "green" tire is put into a mold in which a inner tube like bladder inflates inside the tire pushing it into the mold... this bladder is filled with hot water and steam at varying temperatures for varying amounts of time - this causes a reaction between the different layers of the tire and it vulcanizes them to one another... this is why heat is the main killer of tires - heat like that put back into the tire will also cause it to come apart (the main cause for separations is heat in an area that wasn't fully cured)... so, what do we know about running a tire low on air pressure - it's the same as running a tire overloaded, and both situations leave the tire running much hotter than it was ever intended to be run... that groove on both sides of the tire is not a mechanically made groove - it is not where the tire was contacting anything, including the ground - it is where the tire built up the most heat and started breaking down, both externally and internally - when I say internally, I mean the parts you can't see - the layers inbetween the outer skin and the inner liner...
this is why it is bad to continue using a tire, any tire, that has been used while underinflated - many times it is just asking for a problem, and most of the time it's a blowout that is the end result... 99 times out of 100 that people claim they had a blowout, was actually a low on air tire that blew out because it overheated, the other 1 out of 100 was actually a defective or faulty tire... these are not true ratios, but are a reflection of the number of faulty tires vs. leaky tires that failed in my experience...
here's why:
tires are built in layers right... there is the tread layer, reinforcement strips, belts, inner liner, just to name a few... once all these layers are assembled, the "green" tire is put into a mold in which a inner tube like bladder inflates inside the tire pushing it into the mold... this bladder is filled with hot water and steam at varying temperatures for varying amounts of time - this causes a reaction between the different layers of the tire and it vulcanizes them to one another... this is why heat is the main killer of tires - heat like that put back into the tire will also cause it to come apart (the main cause for separations is heat in an area that wasn't fully cured)... so, what do we know about running a tire low on air pressure - it's the same as running a tire overloaded, and both situations leave the tire running much hotter than it was ever intended to be run... that groove on both sides of the tire is not a mechanically made groove - it is not where the tire was contacting anything, including the ground - it is where the tire built up the most heat and started breaking down, both externally and internally - when I say internally, I mean the parts you can't see - the layers inbetween the outer skin and the inner liner...
this is why it is bad to continue using a tire, any tire, that has been used while underinflated - many times it is just asking for a problem, and most of the time it's a blowout that is the end result... 99 times out of 100 that people claim they had a blowout, was actually a low on air tire that blew out because it overheated, the other 1 out of 100 was actually a defective or faulty tire... these are not true ratios, but are a reflection of the number of faulty tires vs. leaky tires that failed in my experience...
As usual well said.
06-05-09, 11:09 PM
#10
They were a pretty good deal for wheels and tires so can't complain much. Anyone have a good 225-55-16 Michelin pilot xgt-z4 laying around? I believe they are discontinued so what are the chances lol. Guess I have to find a pair of tires or put the supra na wheels back on. Thanks alot for the input fellas.
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