Tyre puncture repair report

Wig

Mustard_Dave wrote: »

Yes it does!

The pressure will change as the tyre hits bumps in the road.

I thought we were talking about holding a finger over a hole in your tyre?

somech

Wig wrote: »

So you think a tiny 5mm hole plugged with rubber and glue can suddenly rupture into a huge gash? I don't think so. The worst that can happen is another slow leak like you would have around a screw/nail.

which is the biggest cause of blow outs
slow leaks + heat build up =blowout

Wig

somech wrote: »

which is the biggest cause of blow outs
slow leaks + heat build up =blowout

on a sidewall, I could agree, but not on the tread section. I've never heard of one, got any evidence you can link to, I'd be very interested, however, when you think of all the nails you and I and everyone has had in their tyres with no blow outs the evidence, I would say, is on my side. If you say it only happens with a slow leak, then I'm fine there aswell as there is no slow leak. The repair has done it's job.

gilbert_and_sullivan

Wig wrote: »

So you think a tiny 5mm hole plugged with rubber and glue can suddenly rupture into a huge gash? I don't think so. The worst that can happen is another slow leak like you would have around a screw/nail.

The problem being that you haven't removed the tyre from the wheel and inspected the inside wall for damage from an errant nail flexing about cutting the sidewall and other cords to shreds..i've seen it, similarly a screw might well have cut several reinforcing wires/cords during it's tenure depending on it's angle of entry, pulling a nail out doesn't always tell you which directio it took as it passed through the tread.

The tyre MUST be removed from the wheel, spread open to inspect the whole inside carcass and the entry point probed from all angles to access the damage to the reinforcings...that's why there are tyre repair specialists, anything else is a temporary get you home job only.

somech

Wig wrote: »

on a sidewall, I could agree, but not on the tread section. I've never heard of one, got any evidence you can link to, I'd be very interested, however, when you think of all the nails you and I and everyone has had in their tyres with no blow outs the evidence, I would say, is on my side. If you say it only happens with a slow leak, then I'm fine there aswell as there is no slow leak. The repair has done it's job.

based on studies by dunlop if memory serves correct
i'll try and dig it out was based on pressure loss heat build up and the rise of pressure as the tyre gets hot resulted in blow outs

Mustard_Dave

Wig wrote: »

You can see videos on youtube like this one
http://www.youtube.com/watch?v=H186BE4Hu_w&nofeather=True

or this one
http://www.youtube.com/watch?v=Xq3dDoYRlQg&nofeather=True

The first repair is being performed in safari conditions where it is unlikely you will find a nearby Kwik-fit. The vehicle is most likely being driven at low speed when a tyre failure will be more of an inconvenience than anything. The bloke demonstrating also plugs a hole on the tyre in a part where it is illegal in the UK.

In the second video, the bloke even says it is not the best method.

Neither video is from the UK and they do not mention UK standards.

Mustard_Dave

Can you also explain to me how this is money saving?

You admit that the repair is only a get you home fix - why not keep your money in your pocket and leave the kit. Next time you have a puncture, put the bloody spare on and take it to the same place you would have to take it anyway to get it repaired properly?

somech

some usefull titbits of info here
http://www.theaa.com/motoring_advice/safety/tyre-repairs-and-sealants.html

Wig

The videos are provided by me just as guide to those interested in how it works. There are other videos on youtube on the subject. And there are people the world over using these repair plugs with obviously no significant danger, otherwise they wouldn't continue doing it.

I'm not interested in nanny state British Standards. All that interests me is
Cost
Practicality
Effectiveness

And the position of the safari repair looks to me to be on the limit of what would be acceptable in the UK, but not necessarily illegal. I would not condone repairing on the sidewall or very near to the sidewall, in this I agree with BS AU 159.

Wig

Mustard_Dave wrote: »

Can you also explain to me how this is money saving?

You admit that the repair is only a get you home fix - why not keep your money in your pocket and leave the kit. Next time you have a puncture, put the bloody spare on and take it to the same place you would have to take it anyway to get it repaired properly?

Are you talking to me?

I don't think of this as "get you home" I think of this, as permanent, until and *if* it starts to leak