screw in tyre, advice?

[Goran]

I managed to get another screw in my tyre, only a month after the last one.
This is getting expensive.

It somehow went in diagonally and into the thick part of the tread not between the ridges.
I pulled it out and didn't lose pressure. Does this mean it didn't penetrate all the way through?
Is it safe to drive like this or is there a danger if the tyres heat up at 70mph that the incomplete hole will crack through the remaining thin rubber and deflate at high speed?

[paulrstaylor]

If it is holding pressure I think you will be fine!

Just don't tighten it up

[tintin]

Almost certainly repairable, if you can get it to a tyre fitter soonish: personally, I'd drive it a bit more slowly (say c. 50mph), especially for a front tyre, until you can do that.

[tc4332]

+1 with Steve (tintin)
Sooner, rather than later, let a tyre expert check it out. Even if they only put the complete wheel in a tub of water.
They might drill through the damage into the interior then insert a mushroom from the inside which will then be vulcanised.
A very good repair and much less than 10% of a new one.

Problem is when the nasty object affects the tyre wall integrity, then a new tyre.

Good luck with it.

I had a spate of finding odd screws on the road surface near our house, suspect someone dropping them whilst walking by.

[Dezzy]

It'll be fine as long as its not penetrated the casing. The tread it’s self can be swiss cheesed and sometimes is on snow tyres as you fire stud into them.

A bit of spit on your finger over the screw head and look for bubbles. If there is none then unscrew the screw, check again for bubbles. If you get bubbles screw it back in and go see the tyre fitter.

The casing its self is the pressure vessel as such so don't worry about it warming up an popping.

I've seen truck tyres shed the whole of the tread off the rest of the tyre and in the good old days of remoulds was a common thing as the donor casing is stripped of its tread right back so you can see the wires and then retreaded.
http://forum.a8parts.co.uk/attachmen...1&d=1459926556

[Dezzy]

Originally Posted by tc4332

+1 with Steve (tintin)
Sooner, rather than later, let a tyre expert check it out. Even if they only put the complete wheel in a tub of water.
They might drill through the damage into the interior then insert a mushroom from the inside which will then be vulcanised.
A very good repair and much less than 10% of a new one.

Problem is when the nasty object affects the tyre wall integrity, then a new tyre.

The mushroom is called a plug and requires the hole to be reamed out. normally only used for large holes where a patch just doesn't cut the mustard. They're not vulcanised just an adhesive that's allowed to go touch try before contact.
I would say the "expert" will repair it for you even though it needs no repairing. Unless you've marked the hole i reckon you'll struggle to find it.

Most tyres are repairable if the puncture is in the main 3/4 of the tread, shoulders and side walls = scrap tyre

[Goran]

Thanks guys for the advice.
I took the screw out already, seems to be holding pressure so far.

Dezzy, I will try the soapy solution method to see if the remaining hole still leaks slowly, thanks.
That's what I was worried about, if there is no hole all the way through, the repair shop will still make a hole and patch it anyway.

Maybe if its not leaking I could fill the hole from the outside with vulcanising solution or this stuff? http://www.mikes-diving.co.uk/storms...glue-297-p.asp

[HPsauce]

I thought the more normal process these days was to put an adhesive airtight patch on the inside.
But if it's not actually leaking, leave it and monitor regularly.

Anything applied on the outside is likely to come adrift given the wear and movement in a tyre tread.

I'd probably plan to swap it to the spare in due course, having it taken off the wheel and checked inside at the same time.

[snapdragon]

If a screw goes in and doesn't burst through, I just poke some rubber glue in with a wooden scewer.

[Dezzy]

Originally Posted by HPsauce

I thought the more normal process these days was to put an adhesive airtight patch on the inside.
But if it's not actually leaking, leave it and monitor regularly.

Anything applied on the outside is likely to come adrift given the wear and movement in a tyre tread.

I'd probably plan to swap it to the spare in due course, having it taken off the wheel and checked inside at the same time.

Patches are the norm and easiest repair as all that needs to be done is a quick buff up on the inside, a bit of glue and the patch stuck on and should then be "stitched" to make sure all the air is out of the patch.

http://forum.a8parts.co.uk/attachmen...1&d=1459935902

http://forum.a8parts.co.uk/attachmen...1&d=1459935902


http://forum.a8parts.co.uk/attachmen...1&d=1459935902


Off road it's also possible to repair puncture from the outside, string insert.