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Thread: Safety Warning: Tire Pyrolysis

  1. #1
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    Safety Warning: Tire Pyrolysis

    Watch it. Fawkin crazy. So if ya got a stuck lugnut don't be grabbing the torch.

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    my question is why does setting a bead with ether not cause the same effect?
    A welder was killed by a tire a few weeks back and he even had the valve core out
    Ahhhh some people just never grow up, but that's Okay; our world needs people like you to add comedy in our lives

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    Yup, in the vid it even said a dude had a tire completely unbeaded, no valve stem and the speed the pressure builds just rebeaded the tire and boom. I also wonder about the ether. Thats how i did all my tires. Fawk.

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    That was an interesting watch. My research is actually dealing with similar issues however dealing more specifically with larger multi-piece rims and tires for mining and off-road trucks. Pyrolysis is a serious issue and from the failures I've read about it oddly is typically caused from lightning strikes or hitting electrical lines like he mentions at the end. What is scary is that the failures dont necessarily happen right away but rather hours later and with a larger tire almost always end in fatality. Its quite tragic and hopefully we'll be making some changes to the number of fatalities soon. Most failures of the rim are still from other sources but pyrolysis is definitely a concern.
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    Wow. Learn somethin new everyday. I always understood there was risk involved with excess heat build up when working around tires and the expansion of air due to the heat. But I didin't know this process existed. Thanks for sharing this Curt.

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    The spare on the back of my CJ blew this summer in the sun.

    I kept it at 32 psi, it was about 10 years old, but did NOT have weather cracks.

    The wife said the noise was incredible (I was not home at the time), which a neighbour confirmed the next day.

    The tire shred itself. I'll try to get some pics. I donated it the a high school to show the danger of overheating tires.

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    ya dun prolly saved my life posting this, thanks buddy!
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    we used a cage back in the old days ,still scary shit

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    damn! thats impressive. thanks for showing this.
    currently building a toyota. i'm sorry.

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    I've seen them take lug nuts off at the dealership with a torch before but won't be waiting around any more . Thanks for the heads up , and every one pass this information on to your buddies.
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    Really the amazing part is the total lack of warning signs, and then the force of the failure. Its a good thing no one uses split rims anymore.

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    In high school I had a defective tire blow it's sidewall out while I was mounting it. The Air pressure ripped the brim of my hat in two and blew me back about 5 feet. It also created temporary hearing loss. Scariest shit and I still wince when I'm seating a bead.
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    http://www.edmontonjournal.com/news/...888/story.html

    EDMONTON — One man was killed and a second man left in serious condition after a truck tire exploded Saturday at an Edmonton auto repair shop.

    The accident happened at 3:54 p.m. local time at 4 Wheel Collision and Frame, when two workers were welding a dump truck to repair a flat tire, Occupational Health and Safety spokeswoman Fiona Wiseman said.

    The dead man, 53, was an employee of the business, while the 54-year-old man who was injured is the owner.

    “The tire exploded, fatally injuring a worker, with serious injuries to the owner,” Wiseman said.

    Occupational Health and Safety investigators were still at the scene Saturday night. A stop-work order is in place, and other orders are expected after the investigation is complete, Wiseman said.
    Copyright (c) AFP
    They should have watched the video Curt posted...
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    well i rally have to thank God for being hear today.
    back in the day '86 ish taking split rims apart on duce-an-a-halfs torches were common with thoes seized wheel nuts
    also with the bud wheel nuts the stud with the square holding the inner rim and the nut for the outter rim again torches were used to unseize them.

    like i said thank God im still hear, thanks for posting this.

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    Thanks for posting that, pretty crazy.

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    WOW...guess I used up 4 more lives when I had to weld 3/4" nuts onto the lock nuts after loosing the key.LOL

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    Be safe out there guys. Like I mentioned in an earlier post, I'm finishing a thesis related to multi-piece heavy vehicle wheels. Sadly, there have been other similar fatalities around the world even since the first post. The worst part is that the majority of injuries and fatalities can be easily prevented if proper safety procedures are followed.

    More than anything, stuff like this reminds me not to take shortcuts when it comes to safety. I'm still guilty of not always using safety glasses or gloves when I should, but I'm getting better. Its so easy to get hurt but its often just as easy to do things the right way and prevent injury. I remember when I was younger and stupider that I didn't bother with safety precautions because "I'm tough" and don't need to.... Now I know better at least.

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    Why is this not a sticky?

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    Quote Originally Posted by BullwinkleTJ View Post
    WOW...guess I used up 4 more lives when I had to weld 3/4" nuts onto the lock nuts after loosing the key.LOL

    Me too.... thats crazy....
    If its a mechanical device i can fix it

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    Quote Originally Posted by markr1001 View Post
    Me too.... thats crazy....
    Yep, if had known about this I deffinately would have found another way.
    I was welding the nuts on with the wheels on the Jeep on a busy side street in down town Toronto behind where I was working...could have been really bad.

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