[HWYSTR455]

It's simply age, doesn't matter if it was in a climate controlled enviro, it would have to be a completely oxygen-free enviro to prevent breakdown.

You don't have to take my word for it, just look at the manufacturers and OEMs, USDOT, NHTSA, and others, they say the same thing. Just drive down the highway for a few miles and look at the shoulders littered with shreded tires, that should give you a clue.

Crossing the auction block is a lot different than driving on the highway at 70 mph. But again, if you're comfortable with that, it's totally up to you.

The gene pool needs a cleansing occassionally, and we've all seen the shows/movies of people doing stuff that they thought was perfectly safe.

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[Navy Horn 16]

Originally Posted by Chief of the 60's

LOL! Yet there are thousands of original, low mileage, collector cars out there running on their original tires with no issues what so ever. I alone have and have had several. It all depends on how it was stored. PERIOD!

That's nonsense. Rubber breaks down over time just like any organic compound. Sure, indoor/climate controlled storage can extend life, but the compounds will still age and deteriorate. Moreover, any elastic material under strain (from weight or pressure) will suffer from stress relaxation. Aircraft museums routinely have to change the tires because inflation pressures and weights they are supporting are so high (and static).

Even tires that aren't under a load (internal pressure or weight of a vehicle) deteriorate, which is why many states have passed laws restricting the age of tires that can be legally sold in those states.

[Chief of the 60's]

Originally Posted by HWYSTR455

It's simply age, doesn't matter if it was in a climate controlled enviro, it would have to be a completely oxygen-free enviro to prevent breakdown.

You don't have to take my word for it, just look at the manufacturers and OEMs, USDOT, NHTSA, and others, they say the same thing. Just drive down the highway for a few miles and look at the shoulders littered with shreded tires, that should give you a clue.

Crossing the auction block is a lot different than driving on the highway at 70 mph. But again, if you're comfortable with that, it's totally up to you.

The gene pool needs a cleansing occassionally, and we've all seen the shows/movies of people doing stuff that they thought was perfectly safe.

.

All in the business to push products for a kick-back. Just like Sfi certs. Tell me, do you change your seat belts every 2 years? Look that up.

[Chief of the 60's]

Originally Posted by Navy Horn 16

many states have passed laws restricting the age of tires that can be legally sold in those states.

Oh please, post up those states and their laws. I am always looking to learn something new.

[HWYSTR455]

Originally Posted by Chief of the 60's

All in the business to push products for a kick-back. Just like Sfi certs. Tell me, do you change your seat belts every 2 years? Look that up.

https://www.chaliklaw.com/defective-...-tire-failure/

"Car accidents are far too common but some can be prevented. According to safecar.gov, nearly 11,000 accidents a year are caused by tire failure."

I bet those people who died from tire failures had no connection to kick-backs.

This is a futile debate. As I said before, if YOU are comfortable with driving on old tires, that's entirely up to you.

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[Chief of the 60's]

LOL! That's put out by lawyers. LMAO!!!!! People died because of GM ignition switches too.

[HWYSTR455]

Seat belts are different, and replacement intervals are different for passenger cars and race cars.

Passenger cars:

"Some safety experts advise having seat belts inspected and possibly replaced after 10 to 15 years of use. "

'Possibly'. In the event of an accident, they should be replaced, since they are considered a one-time use thing:

"It’s adviseable to replace any seat belts that were in use during a crash to ensure the belts will offer the same measure of protection should a collision occur in the future. Some manufacturers also recommend changing all of the safety belts in the vehicle, even if they weren’t in use at the time of the crash."


Race cars, per SFI and NHRA guidelines:

"For SFI belts the expiry is 2 years and they do this because of the deterioration of the nylon webbing as noted below."

Race cars are different because of the extreme environment/use.

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[Chief of the 60's]

Its the same material.

[HWYSTR455]

Originally Posted by Chief of the 60's

LOL! That's put out by lawyers. LMAO!!!!! People died because of GM ignition switches too.

Even when clear facts stare you right in the face, you ignore them. I'm shocked you've lived this long.

But, just to show it's not just lawyers:

"A Large Body of Scientific Literature Supports a Six Year Tire Expiration Date

Numerous studies written by or for the National Highway Traffic Safety Administration support a finding that tires expire in six years.

These studies conclusively conclude the following:"

"Tires begin to weaken and fall apart as they age."

"The tire aging process happens regardless of whether a tire is on a vehicle or in a temperature-controlled room."

"Most tires begin to significantly degrade around five years from the date of manufacture."

"Six years from the date of manufacture, most tires are no longer safe for use on a vehicle."

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[HWYSTR455]

Originally Posted by Chief of the 60's

Its the same material.

But you're not doing 150+ MPH on a regular basis on the street.

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[JMB36TA]

Tires fail for many different reasons. Like I said in an earlier post, the tires on my 02 T/A are 9 years old and run fine and hold air fine. BUT, I've had to replace tires sooner for one reason or another, mostly because of dry rot from sitting in 100+ degree Arizona summers. They lasted longer since I've been able to keep it in a garage and out of the sun. There's no debate that everything deteriorates over time but the rate can be determined by usage and climate. Tires are a consumable product and I always keep an eye on them. When they need replacing I replace them for whatever reason.

[HWYSTR455]

Run fine and hold air, UNTIL they fail. You do a 100+ MPH blast, it can exceed the limits of the tire in it's current condition, and can fail. It's a risk. If you're comfortable with that risk, then it's entirely up to you.

All I'm saying is, tires do expire, tires do become compromised with age, and there is a risk with old tires.

In this case, where you have a 'wobble', guess what? It's probably the tire. And all I asked was how old they were. If the tire is of questionable condition, then, it's most likely the tire causing you issue. It's just common sense. Deductive reasoning.

.

[OG68]

A little story regarding old tires. A fellow El Camino club member and I were returning from a weekend meet in Pismo Beach. (about 350 miles from San Diego) 20 miles down the road his front tire suddenly goes flat due to a valve stem failure. He didn't have a spare so I loaned him mine. The spare (General) was in excellent condition with minimal tread wear but was 15 years old according to the date code.
As we were driving through Los Angeles at about 70 mph the tread let go. I was behind him and took a few chunks to the windshield. We made it safely to the shoulder and found the tire was still holding air with 90% of the tread gone. We limped to the next off ramp and luckily found a tire store that was still open at 5:30 on a Sunday evening. Unfortunately they didn't have a tire to replace his original which had sideway damage. But they did have a 14" tire in stock which they mounted to the destroyed spare and we continued on to San Diego without further incident.

His driver front fender was severely damaged and spent 6 weeks in the body shop trying to get it right. I somehow managed to avoid any damage to my windshield.
It only takes one time to prove a point. We were both fortunate that no one got hurt in the busy LA traffic. It could have ended much worse.

[Chief of the 60's]

Originally Posted by Navy Horn 16

many states have passed laws restricting the age of tires that can be legally sold in those states.

Originally Posted by Chief of the 60's

Oh please, post up those states and their laws. I am always looking to learn something new.

Yeah, I figured I'd hear crickets on this one. ^ ^ ^

Here's the deal, most vehicles here and most collector cars in general rarely go over 40mph with some occasionally maxing out at 60mph on a short stretch of the interstate. As long as a tire has no visible sign of deterioration, age is not going to matter.

Now, if you race or are a cone killer I can see someone "needing" to replace their tires. However, if you just like wasting money because you can, then by all means knock yourself out and buy as many tires as ones little heart desires.

[JMB36TA]

Originally Posted by HWYSTR455

Run fine and hold air, UNTIL they fail. You do a 100+ MPH blast, it can exceed the limits of the tire in it's current condition, and can fail. It's a risk. If you're comfortable with that risk, then it's entirely up to you.



All I'm saying is, tires do expire, tires do become compromised with age, and there is a risk with old tires.



In this case, where you have a 'wobble', guess what? It's probably the tire. And all I asked was how old they were. If the tire is of questionable condition, then, it's most likely the tire causing you issue. It's just common sense. Deductive reasoning.



.

Anything is fine UNTIL it fails. I don’t disagree with that. I’m saying that I don’t know how old they are, I haven’t checked the date code. All I can say about them is that they look like they’re in good condition with no visible signs of wear or defects. I’ll know for sure if it’s a tire when they’re rotated and I drive it. I honestly hope it’s a tire and not something like bad bearings. I was planning on replacing the tires anyway so it’s not anything new I have to replace.



Sent from my iPhone using Tapatalk

[ta man]

Originally Posted by Chief of the 60's

A shifted belt is highly unusual these days. After all, this is not the 70's and 80's anymore and tire technology has come a long way. However, there is not a lot back there that can cause a wobble. Nearly impossible to bend an axle, I'm sure you did not hit a big pothole or curb to bend a wheel, cannot see bushings or U-joint causing this, so a shifted belt in a tire is plausible.

I've had more bad tires on my work vehicles in the last couple years then ever. These were also tires less than 3 or 4 years old.

[dataway]

The reduction of carbon and oil in modern tires typically makes them a bit more prone to degradation with time. Also you'll notice bargain basement equipment tires will dry rot in about three years ... they skimp on ingredients like carbon black and oil.

[JMB36TA]

It's definitely a tire. The right rear has a bubble in it. Now the decision I have to make is to either get one BF Goodrich to match the other 3 and hold off on the Polyglas for a while, get 2 Polyglas that I want for the rear and leave 2 BF Goodrich in the front for 6 months and drive with mismatched tires, or break down and charge 4 new Polyglas. These things ain't cheap, with mounting and balancing I'm looking at over $1000 but it would drive me crazy to see 2 different tires on my car. I'm leaning towards one new BF Goodrich and using it as a spare when I get the Polyglas.

[Chief of the 60's]

Originally Posted by JMB36TA

break down and charge 4 new Polyglas. These things ain't cheap, with mounting and balancing I'm looking at over $1000.

And think..... You should do that every few years!

[JMB36TA]

Originally Posted by Chief of the 60's

And think..... You should do that every few years!