Unsafe tires.

On Sunday, November 1, 2015 at 12:27:18 PM UTC-6, Ashton Crusher wrote:
> On Sat, 31 Oct 2015 22:19:17 -0000 (UTC), Brent
> > wrote:
>
> >On 2015-10-30, Ashton Crusher > wrote:
> >> On Tue, 27 Oct 2015 15:52:52 -0700 (PDT), JR >
> >> wrote:
> >>
> >>>Google,,, Millions driving on unsafe tires. ...Tires that look new, but are actually old. It was on TV news a few minutes ago.
> >>
> >> Yeah, it's almost entirely Bullcrap. The tires are failing from
> >> underinflation, not "age". The tire industry keeps promoting this lie
> >> to sell more tires.
> >
> >dry rot can cause a tire failure, I experienced it first hand when I
> >was teen. Before it was a thing to be paranoid about everything. A tire
> >went flat. It was dry rotted and just gave up. Not dramatically, I just
> >heard the air hissing out at a stop light. Then I found the spare had
> >tread separated in the trunk from dry rot, but still holding air. It
> >thumped but allowed the car to hobble to a parking lot. So basically
> >it's just annoying. Especially in a country that doesn't allow for
> >civilized speeds over 99+% of it. At high speed it might be an issue.
> >
> >Would I be happy about being sold a set of NOS tires when I thought they
> >were new? Yes. Because if it's a car I'm not driving a lot I lose life
> >on the tires.
>
> Nothing is 100%. I had a set of Pirellis and two of the 4 failed on
> the freeway, at about one month apart, at 22K and 3 years of age. I
> didn't wait for the other two to fail.... They always had proper tire
> pressure. I've got 14 year old, 65K tires on another vehicle and so
> far they have not failed.

I have Kumho tires on my 1983 Dodge van. I bought them about five years ago. I put about 240 miles on my van each year. I reckon those tires will start to dry rot long before I wear the tread out.

Ashton Crusher: How did you determine "proper"
tire pressure.

On 11/01/2015 12:30 PM, JR wrote:
> On Sunday, November 1, 2015 at 12:27:18 PM UTC-6, Ashton Crusher
> wrote:
>> On Sat, 31 Oct 2015 22:19:17 -0000 (UTC), Brent
>> > wrote:
>>
>>> On 2015-10-30, Ashton Crusher > wrote:
>>>> On Tue, 27 Oct 2015 15:52:52 -0700 (PDT), JR
>>>> > wrote:
>>>>
>>>>> Google,,, Millions driving on unsafe tires.
>>>>> ...Tires that look new, but are actually old. It was on TV
>>>>> news a few minutes ago.
>>>>
>>>> Yeah, it's almost entirely Bullcrap. The tires are failing
>>>> from underinflation, not "age". The tire industry keeps
>>>> promoting this lie to sell more tires.
>>>
>>> dry rot can cause a tire failure, I experienced it first hand
>>> when I was teen. Before it was a thing to be paranoid about
>>> everything. A tire went flat. It was dry rotted and just gave up.
>>> Not dramatically, I just heard the air hissing out at a stop
>>> light. Then I found the spare had tread separated in the trunk
>>> from dry rot, but still holding air. It thumped but allowed the
>>> car to hobble to a parking lot. So basically it's just annoying.
>>> Especially in a country that doesn't allow for civilized speeds
>>> over 99+% of it. At high speed it might be an issue.
>>>
>>> Would I be happy about being sold a set of NOS tires when I
>>> thought they were new? Yes. Because if it's a car I'm not driving
>>> a lot I lose life on the tires.
>>
>> Nothing is 100%. I had a set of Pirellis and two of the 4 failed
>> on the freeway, at about one month apart, at 22K and 3 years of
>> age. I didn't wait for the other two to fail.... They always had
>> proper tire pressure. I've got 14 year old, 65K tires on another
>> vehicle and so far they have not failed.
>
> I have Kumho tires on my 1983 Dodge van. I bought them about five
> years ago. I put about 240 miles on my van each year. I reckon those
> tires will start to dry rot long before I wear the tread out.

I had a Pirelli and a Dunlop (no idea what brand the tubes were, I never
had to change/fix them) on my motorcycle which sat unused in a shed for
perhaps 10 years. When I wheeled it out to give it away they both still
had air.

Dunlop used to make tires out of "cling" rubber. What's that called now?

--
Cheers, Bev
|||||||||||||||||||||||||||||||||||||||||||||||
If you're ever about to be mugged by a couple
of clowns, don't hesitate - go for the juggler.

On Sun, 1 Nov 2015 17:25:25 -0800 (PST), wrote:

>Ashton Crusher: How did you determine "proper"
>tire pressure.

At least as high as the placard on the door and no higher then the max
listed on the sidewall. Depending on how you plan to drive and what
you plan to carry you can pick something between those numbers if you
want to fine tune things. You can go crazy and measure temperatures
across the surface of the tire and/or put chalk on it. Some say you
can safely go 5 over the max listed and improve handling. I'm not
convinced.

Ashton Crusher wrote: "At least as high as the placard on the door and no higher
then the max listed on the sidewall. Depending on how you plan to drive and what "


Someone found the DOOR PLACARD! That's all
I was looking for. I posted last month a thread about
a NHTSA Survey where they found most people go
by the numbers on the tires themselves, and the door
placard the least. Got next to no attention.


Yeah, I go a couple PSI over the door sticker
myself - good blend of handling and fuel economy.
Now when you mentioned some people going 5
PSI over the max, did you mean over the number
on the TIRE? Yikes!

On Tuesday, November 3, 2015 at 6:26:51 AM UTC-6, wrote:
> Ashton Crusher wrote: "At least as high as the placard on the door and no higher
> then the max listed on the sidewall. Depending on how you plan to drive and what "
>
>
> Someone found the DOOR PLACARD! That's all
> I was looking for. I posted last month a thread about
> a NHTSA Survey where they found most people go
> by the numbers on the tires themselves, and the door
> placard the least. Got next to no attention.
>
>
> Yeah, I go a couple PSI over the door sticker
> myself - good blend of handling and fuel economy.
> Now when you mentioned some people going 5
> PSI over the max, did you mean over the number
> on the TIRE? Yikes!

The Kumho tires on my 1983 Dodge van say 41 pounds. That is how much PSI I put in the tires.

JR:
Again - tires are the wrong place to look -
but you are hardly alone in this error.

Scroll down in this link:
http://www.vanning.com/threads/ubbth...sure_Help.html

Recommended pressures vary by expected
maximum load you intend to carry. In the
table in that link the maximum recommended
pressures don't even come close to the
max stamped on the tires.

If a vehicle I'm driving does not have
a placard on the b-pillar, and the info
is not in the manual or anywhere else,
I'll inflate to 5lbs psi below what's on
the tire, until I can find out the VEH
MFG's recommended pressure.

On Tue, 3 Nov 2015 04:26:46 -0800 (PST), wrote:

>Ashton Crusher wrote: "At least as high as the placard on the door and no higher
>then the max listed on the sidewall. Depending on how you plan to drive and what "
>
>
>Someone found the DOOR PLACARD! That's all
>I was looking for. I posted last month a thread about
>a NHTSA Survey where they found most people go
>by the numbers on the tires themselves, and the door
>placard the least. Got next to no attention.
>
>
>Yeah, I go a couple PSI over the door sticker
>myself - good blend of handling and fuel economy.
>Now when you mentioned some people going 5
>PSI over the max, did you mean over the number
>on the TIRE? Yikes!

Yes. Someone posted the results of testing that showed high pressures
like that resulted in the best handling. I'm not doing it but I feel
it would be OK to do so based on the theory that the tires surely are
designed to handle a 5 psi over inflation. Heck, the Joe Chitwood's
of the world pump them up to something like 100 psi to do their
stunts.

Ashton Crusher > wrote:
>
>Yes. Someone posted the results of testing that showed high pressures
>like that resulted in the best handling. I'm not doing it but I feel
>it would be OK to do so based on the theory that the tires surely are
>designed to handle a 5 psi over inflation. Heck, the Joe Chitwood's
>of the world pump them up to something like 100 psi to do their
>stunts.

My uncle always said that you can't fill a tire too much, that you should
just pump and pump and when no more air is going into the tire that it's
time to stop. He didn't believe in pressure gauges or measurements.

Surprisingly enough, he died at home in bed, and not in some terrible
blowout-induced accident.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

On 11/03/2015 06:13 PM, Scott Dorsey wrote:
> Ashton Crusher > wrote:
>>
>>Yes. Someone posted the results of testing that showed high pressures
>>like that resulted in the best handling. I'm not doing it but I feel
>>it would be OK to do so based on the theory that the tires surely are
>>designed to handle a 5 psi over inflation. Heck, the Joe Chitwood's
>>of the world pump them up to something like 100 psi to do their
>>stunts.
>
> My uncle always said that you can't fill a tire too much, that you should
> just pump and pump and when no more air is going into the tire that it's
> time to stop. He didn't believe in pressure gauges or measurements.

I don't know about that, but I pump the tires on my MTB up to 80 lbs if
I have that much energy, otherwise 60 or so. I think '40' is molded
into the tire as the maximum pressure.

> Surprisingly enough, he died at home in bed, and not in some terrible
> blowout-induced accident.

People always say stuff like "He died doing what he loved." Let's hope so.


--
Cheers, Bev
================================================== =======
"If you watch TV news, you know less about the world than
if you just drank gin straight from the bottle."
- Garrison Keillor