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Open Roads Forum  >  Tech Issues

 > Tire engineering question.

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jjrbus

FT Myers FL

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Posted: 07/14/21 05:26am Link  |  Quote  |  Print  |  Notify Moderator

So I go and get rig weighted and inflate rear tires to 10% over psi suggested in load and inflation tables.

Driving along and whats that BOOM noise? Got a blow out on the rear. In a miles long construction zone with no exits or place to pull over. Now one tire on one side is way overloaded, on my RV would be about 30% overload.

Question would be how far can I drive on the remaining tire before destroying it or needing to replace?

QCMan

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Posted: 07/14/21 05:48am Link  |  Quote  |  Print  |  Notify Moderator

Until it blows up and joins its partner.


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Posted: 07/14/21 07:33am Link  |  Quote  |  Print  |  Notify Moderator

Yes but replace the unblown tire as soon as you can.


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n0arp

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Posted: 07/14/21 07:37am Link  |  Quote  |  Print  |  Notify Moderator

I have no specific answers to this, but an anecdotal one. We limped a friend's MH about 25mi to town on just an inner once. That inner was certainly very overloaded, and is still in service with a repaired outer several months later.


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JKJavelin

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Posted: 07/14/21 09:40am Link  |  Quote  |  Print  |  Notify Moderator

You will find all kinds of tire engineers right here on this forum.
To answer your question (as a non-engineer), I would replace it ASAP, I wouldn't trust it.
JK


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Tal/IL

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Posted: 07/14/21 09:46am Link  |  Quote  |  Print  |  Notify Moderator

jjrbus wrote:

So I go and get rig weighted and inflate rear tires to 10% over psi suggested in load and inflation tables.


Your tire failure may have been totally unrelated to air pressure. Still, I am curious: how did "10% over psi suggested in load and inflation tables" compare to sidewall max pressure?


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Old-Biscuit

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Posted: 07/14/21 10:03am Link  |  Quote  |  Print  |  Notify Moderator

One tire blow out on a Dual means the other tire was instantly overloaded......damage is done and increases with drive time

No place to safely pull off....then you drive on it until you can safely pull over EVEN if it blows and your on the rim.

Gonna need 2 new tires regardless.


Is it time for your medication or mine?


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MNRon

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Posted: 07/14/21 10:17am Link  |  Quote  |  Print  |  Notify Moderator

What Old Biscuit said


Ron & Pat
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n0arp

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Posted: 07/14/21 10:35am Link  |  Quote  |  Print  |  Notify Moderator

I tend to agree, I'd personally replace both tires afterwards for peace of mind.

jjrbus

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Posted: 07/14/21 10:52am Link  |  Quote  |  Print  |  Notify Moderator

Tal/IL wrote:

jjrbus wrote:

So I go and get rig weighted and inflate rear tires to 10% over psi suggested in load and inflation tables.


I DID NOT HAVE A TIRE FAILURE. I keep getting told to run tires at much higher pressure in case I get a blow out, makes no sense.


Your tire failure may have been totally unrelated to air pressure. Still, I am curious: how did "10% over psi suggested in load and inflation tables" compare to sidewall max pressure?


In my mini Toyota sidewall max psi is 65, load and inflation table load range D tire calls for 39 psi, I run 43 and use TPMS.

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