Punctures to write home about
 

Soooooo. I'm driving home down the A38 towards Plymouth. Following my youngest in his Skoda when the backed start to feel a little funny. Next second BANG and the back end feels very funny. Luckily I'm following a Skoda so only 65mph. I get out and it's a nearside rear flat. Bug ger! So off wheel and on spare.
Spot the puncture.......
http://%20http://forum.a8parts.co.uk...1&d=1349727794http://forum.a8parts.co.uk/attachmen...1&d=1349728077









Does this help?
http://forum.a8parts.co.uk/attachmen...1&d=1349728077
WTF!
JUST had 2 new front tyres fitted after my little bump. :(

Scary as hell. Glad you're okay.

FFS. That's a pretty catastrophic failure... Not seen one like that in a while.

OMG! :eek:
you never do things by halves, do you!!
what the heck was the cause of such a severe failure do you reckon?

Oaft belter! :(

If I had to offer a professional opinion I'd be wondering how old the tyre was and whether it'd been sat under-inflated or potentially driven on under-inflated at any time in its life.

A combination of the 2 is the usual cause of structural failure unless there's an underlying fault in the carcus construction from new

Always scary as rear failures usually result in oversteer unlike fronts which tend to understeer. One of the reasons that perceived wisdom is to have your best tyres on the rear axle

is there any perceived wisdom about narrower or wider tyres being less or more dangerous in the case of a blowout Adrian?

Standards are slipping Mike.... Thought you'd at least clean the inside of the Alloy before you uploaded a photo of it.... ;)

In fact, given your all new access to the inside of the tyre, you could have given that a once over too :p

Depends on the size of the vehicle really - if its a standard size for that vehicle it shouldn't be much different response from 1 to another. Obviously the trend to lower profile tyres over the last 15 years has resulted in far less loss of control accidents as the tyre doesn't move about so much on initial deflation

Going to extremes the stretched look isn't great for tyres as you're putting more stress on the sidewall all the time. Too wide for the wheel and it'll move about like a higher profile tyre (although without the car dropping as much!)

Is this one of the new one's fitted Mike? If so new one foc and that one sent back to supplier.

Given the catastrophic failure of the tyre I think you were lucky Mike to make a controlled stop. Glad you are OK. Would you recommend Federal tyres after that experience? :(

After a few years fitting tyres this type of failure is not restricted to cheaper or lesser known brands, it only takes a small defect in manufacture or even a pothole catching the iner edge of the tyre and causing an “egg” in the inside wall combined with heat and pressure and BANG. That tyre has also been run flat for a bit too as seen by the black dust so the rip would have been smaller to start with.

What i will say is that Michelin always wanted the casing back to check it, as all the manufacturing deatails are on it, where, when ect.

Well held though Mike just as well you were not on a flyer. That said how’d the car track with the flat, when I had the front one go it was quite hard to tell really. I know how that sounds (you must be pretty stupid not to realise) what I mean is the 8 tracked well with a flat on the front, it would have done 20 – 30 mph no problems at all with the front tyre flapping around.

I had a puncture the other day on the nearside front. (Nail clean through the main surface - not a sidewall) and the car immediatley started pulling to the left as it started deflating. I was at 30mph. It was very noticeable so I managed to stop before any further damage occurred. +++

I had front offside go on my 4.2 QS D2 at about 95 mph on the M6 toll road - I seriously only knew because of the smell.

4 up in the car, I'm like "anyone smell that, what is it?"

I even took my hands off the wheel to see if she was still tracking straight - she was!

I can only assume that despite the deflation, the speed of the revolution of the wheel somehow kept everything together

The lower the profile, the more likely it is to track properly as mentioned earlier.

Runflats are basically just thicker sidewalls, so if you look at low-profile XL tyres, they have thicker sidewalls, especially if they have rim protectors.

I reckon hat the Tyre had been flat from when I had gone onto the A38. The bang was probably the side wall detaching. I had been running straight and steady for a while following my son. I must have picked up the puncture a while back and run flat for 25 miles or so. They were fitted new in 2010 and had done about 18k. :(

Just thinking back.. had a similar incident in a J-plate Cav SRi (one of the last 8v 130hp ones), felt it twitch heavily coming from the M77 on to the M8 (for those in the know), twitched again coming on to the bridge and by the time I pulled over on the North side, it was in a similar state, smoking away quite merrily, but no bang,inside was trashed though.

It does look like it has been run a fair bit after the puncture

Just a tyre mate at least you're alright and more importantly the 8's ok

Just stick the picture of the good side on ebay with the words "Tyre for sale,may require puncture repair ,6mm of tread" That will sell +++

You still got those 19's for sale i'm really interested now :)