Blew a 4 year old tire!

[castlemusic]

Looking for opinions! blew an inside dual tire over the weekend. Happened as I was turning a corner - heard a loud bang in the back, and looked in the mirror to see what parts fell off! Pulled over, and saw the carnage. Good news was I had an old unmounted spare, and got someone out in an hour and was on my way, and was able to make it home the last 50 miles without incident.

Here's the question - all four rears have a date code of 5217, so just over 4 years old! Really hoped I could go 6-7 years before needing to replace. The fronts were 2013 when I bought in 2019, so went ahead and did those. These are Toyo M177, so good quality tires (had a trucker tell me one time those are his favorite to run on his rig!), and had proper pressures at the start of the short 2 day trip. The spare is 2013, so definitely need to replace there, but should I do all 4? Just 2 on the one side? Just the 1? Thanks for the advice.

[pasdad1]

Wow, did you have a TPMS to alert for any possible leakage before the blowout ?

[vseasport]

Depends on your budget. I’d change all four and use one for a newer spare.

[Injuneer]

That's pretty wicked. Tires don't just blow; either it leaked or was damaged by something. Without TPMS, you'll never know which. Glad it didn't cause any injuries!

[bigb56]

Originally Posted by Injuneer

That's pretty wicked. Tires don't just blow; either it leaked or was damaged by something. Without TPMS, you'll never know which. Glad it didn't cause any injuries!

Yep they usually lose air without you knowing it then they come apart, but in this case he said he heard a bang while turning a corner, kind of scary to have that happen and I am really curious as to what caused it, could have been damaged a while back like you say. I actually have seen tires just blow up while sitting in the sun, happened to me once when I was working on a live electrical panel, a tire blew up just 6 feet from me and scared the poop out of me! Weird stuff like that always happens when working on a live panel, a couple times I would hear an explosion off in the distance right when switching on a breaker, nothing to do with what I was working on whatsoever. First rule when vibrating pagers were the norm, take pager off before working on energized panel.

[Charles L]

I would replace all four. Better if you could swing all 6 and keep one of the 2019 tires on the front for a spare.

[bigb56]

To the OP, were you running the pressure per the coach sticker or per the tire sidewall? Have you weighed your corners?

[edge68474]

Interesting.

[saddlesore]

Originally Posted by Injuneer

That's pretty wicked. Tires don't just blow; either it leaked or was damaged by something. Without TPMS, you'll never know which. Glad it didn't cause any injuries!

Hmm..inside dual. Something that some tire outfits forget to do is make sure that the dual tires are the same diameter.. and will build heat if they are not..

[cherv]

not good. I am anal about checking tire pressure the day we start our trip. even then no guarantees.

[twinboat]

Is this from changing the tire or road damage. Did it blow between the tires ?

Any marks on the inside of the outer tire ?

[CRV2]

On this thread's line of thought, last time I went to Discount Tire (or a time a few years back) I was told that the tire industry now recommends the best tires on the rear. I am not sure I agree with that but understood their reasoning once explained. With that in mind and contrasting that recommendation with a Motor Home (mine is a class c but the same thoughts should apply), is it better to have the best tires on the steer axle or the rear axle(s)? I personally feel more comfortable with the newest tires up front as a single rear blowout has a tire next to it that a car doesn't have. ~CA

[castlemusic]

Originally Posted by twinboat

Is this from changing the tire or road damage. Did it blow between the tires ?

Any marks on the inside of the outer tire ?Attachment 358540

Yes, this was the side between the duals. Noticed no marks on the other during the change. I was also curious about that "wet" mark next to the cut... pretty sure it was there before the tire change, so that may be a clue.

No, I do not have a TPMS system, so no advance warning of air loss. As others have said, since I heard a loud bang, there must've been plenty of pressure before it let go!

Regarding the pressure I run at - the wall sticker recommends 115 psi up front, 105 in the back. That's also for the original Goodyear 275/80R22.5. I'm now running 295/75s, and I run ~110 at all 4 corners. I have weighed the rig, but only have axle weights, not the 4 corners.

I'm leaning towards 4 new, as I need a "newer" spare anyway. Just not thrilled about shelling out $450+ a tire plus mounting right now, especially with fuel prices through the roof already taking a bite out of the budget!

[ArtJoyce]

Originally Posted by craigav

On this thread's line of thought, last time I went to Discount Tire (or a time a few years back) I was told that the tire industry now recommends the best tires on the rear. I am not sure I agree with that but understood their reasoning once explained. With that in mind and contrasting that recommendation with a Motor Home (mine is a class c but the same thoughts should apply), is it better to have the best tires on the steer axle or the rear axle(s)? I personally feel more comfortable with the newest tires up front as a single rear blowout has a tire next to it that a car doesn't have. ~CA

What I was told. That's for front wheel drive. You want the best on the rear so when of slippery surfaces mainly braking the rear does not slid up and around the front. I had it happen to me.