[Fourlanders] Question For The Braintrust

[Tom McElroy]

The discussion reminded me of a Feynman story about how rubber bands (like
rubber tires) work, and even if they're sitting still, they don't last
forever.

https://youtu.be/XRxAn2DRzgI

<https://youtu.be/XRxAn2DRzgI>
73
Tom
W4SDR

On Mon, Oct 5, 2015 at 9:40 AM, ww8rr <ww8rr at charter.net> wrote:

> BTW...this is yet another point that the advocates of using Nitrogen in
> auto tires have on thier list of reasons.....the Oxygen in common
> compressed air is what causes rubber oxydation and decomposition since that
> area is not expised to the sun.
> Nitrogen does not attack the rubber in the same way and the advocates
> claim the tire area on the inside of the wheel stays "Healthier".
> Believe what makes you feel good i guess
>
> Ron
>
> From my Samsung Galaxy S4
>
>
> -------- Original message --------
> From: Ron Rogers <ww8rr at charter.net>
> Date: 10/05/2015 7:11 AM (GMT-05:00)
> To: 'Sherman Banks' <w4atl at shermanbanks.net>, 'Jim Worsham' <
> w4kxy at bellsouth.net>
> Cc: fourlanders at contesting.com
> Subject: Re: [Fourlanders] Question For The Braintrust
>
> I agree with Sherman about tire aging. The debate seems to be whether the
> tires can go 5, 6, or 8 years as a safety maximum,  but all tire companies
> will say Absolutely no more than 10 years if the tire will see speeds in
> excess of 50 MPH.
> Just like rubber bands that deteriorate over time, tire rubber compounds
> dry
> out and the internal bonding of the tire layers and belts will begin to
> loose elasticity, bonding power, and begin to separate.....especially at
> heavier loads at higher speeds. People that buy used tires for campers and
> trailers really run a risk of separation since they usually pay no
> attention
> to the tire date codes.
>
> But I myself never have the opportunity to hold onto a set of tires beyond
> 3-4 years since I put more than average annual mileage on my vehicles.
>
> Ron
> WW8RR
> -----Original Message-----
> From: Fourlanders [mailto:fourlanders-bounces at contesting.com] On Behalf Of
> Sherman Banks
> Sent: Monday, October 05, 2015 3:18 AM
> To: Jim Worsham
> Cc: fourlanders at contesting.com
> Subject: Re: [Fourlanders] Question For The Braintrust
>
> Yes, this is true, but 5 years is a bit soon to replace them. But I would
> definitely not let them go more than 10 years before replacing them. The
> tire could start to separate internally so that you can't see it. Dry rot
> is
> only one thing that could happen and the rot could be occurring internally
> where you can't see it.
>
> I recently replaced the tires on my '68 Charger since the date code showed
> they were over 10 years old even though the tread was still good.
>
>
> >  On Oct 5, 2015, at 1:02 AM, Jim Worsham <w4kxy at bellsouth.net> wrote:
> >
> > I was at Sears today getting my oil changed (they are open on Sunday) and
> the service guy approached me about something rather odd.  He said that my
> tires were five years old and they should be replaced.  I did get the tires
> about five years ago but they still have good tread and there is no sign of
> dry rot or anything to make me think that they should be replaced.  When I
> pointed this out to the guy he said that tires have an expiration date and
> they are not safe after that date.  I blew him off and told him thanks but
> no thanks.  I have to ask you guys have any of you heard of this?  Sounds
> like a scam to sell tires but I want to be 100% sure.  Thanks.
> >
> > 73
> > Jim, W4KXY
> >
> > Sent from my iPad
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> >
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