Puncture advice
Discussion
Hi guys and Mel 
Managed to get a screw type thing in my newish rear tyre the other day. Just been to get it repaired, (not at kwit-fit
) They said they couldn't repair it as it was on sidewall ...ish. So we just decided to pull screw out, and it turns out it is only short (11mm). I have tested it using some soapy water and it seems no air is escaping. I am now going to leave it to see if it deflates.
Question is, would you trust it? Don't think I would. Or do you think it is repairable? The tyre is has only done about 500 miles
Managed to get a screw type thing in my newish rear tyre the other day. Just been to get it repaired, (not at kwit-fit
) They said they couldn't repair it as it was on sidewall ...ish. So we just decided to pull screw out, and it turns out it is only short (11mm). I have tested it using some soapy water and it seems no air is escaping. I am now going to leave it to see if it deflates.Question is, would you trust it? Don't think I would. Or do you think it is repairable? The tyre is has only done about 500 miles
They were right to say not to repair it. Within 25mm of the sidewall is a no-no.
If the tyre is new, then you have about 8mm of tread, plus another mm or so of rubber before you get to the cords... Measure the screw from shoulder to tip, and see how much would have protruded to the radial bands. It looks to me like it's too short to have actually broken the top strand, let alone the layers beneath, so I'd use it, but keep an eye on it.
If the tyre is new, then you have about 8mm of tread, plus another mm or so of rubber before you get to the cords... Measure the screw from shoulder to tip, and see how much would have protruded to the radial bands. It looks to me like it's too short to have actually broken the top strand, let alone the layers beneath, so I'd use it, but keep an eye on it.
Edited by ARAF on Saturday 6th March 20:44
It's a bugger when this happens. Many years ago I had a 325i Beamer that had this happen every couple of weeks.
That is in a dodgy area and I would like to have a look inside the tyre. I suppose if the screw hasn't compromised the ply's or carcass construction and has only pierced the outer rubber coating you might just get away with it. What you don't want to happen is for any damage to precipitate delamination.
Like you have found, don't bother to ask advice from the stealers, they just want to sell you a tyre, period!
Try and get some expert, impartial advice (if that is possible), maybe from the manufacturer.
That is in a dodgy area and I would like to have a look inside the tyre. I suppose if the screw hasn't compromised the ply's or carcass construction and has only pierced the outer rubber coating you might just get away with it. What you don't want to happen is for any damage to precipitate delamination.
Like you have found, don't bother to ask advice from the stealers, they just want to sell you a tyre, period!
Try and get some expert, impartial advice (if that is possible), maybe from the manufacturer.
Thanks for all the advice guys. 
Being an engineer, I see it as an inherant weakness at this moment in time. I think the next course of action is to get the tyre off and inspect it from the inside, then get someone in the know to have a look at it. I know it's a £200 tyre, but it's not my 59(and a half)bhp fiesta, and until I get a professional opinion, I think safety comes first. Us yorkshire folk may be tight, but we aint stupid
Does anyone know an expert in the yorkshire area that could cast their eye over it?
On a side note, what ever happened to inner tubes? back in the day, with a big hole they just used to shove an inner tube in, or if they were feeling lazy
Being an engineer, I see it as an inherant weakness at this moment in time. I think the next course of action is to get the tyre off and inspect it from the inside, then get someone in the know to have a look at it. I know it's a £200 tyre, but it's not my 59(and a half)bhp fiesta, and until I get a professional opinion, I think safety comes first. Us yorkshire folk may be tight, but we aint stupid
Does anyone know an expert in the yorkshire area that could cast their eye over it?
On a side note, what ever happened to inner tubes? back in the day, with a big hole they just used to shove an inner tube in, or if they were feeling lazy
nitrosman1 said:
how much longer is the screw compared the the deepest gvooves on the tyre that will give you a good idea on how much its peirced into vital tyre strands
measured at the centre of the tyre where the tread is deepest, 3.25mm. At the edge, where it went in, 5.25mm.I have just been doing a bit of googling, and came across the hot vulcanization process. Is this an option? Sounds like it is more in the way of agricultural vehicles and the like, but there are quite a few claims that more "extreme" tyre damage can be repaired
Crazyhouse said:
nitrosman1 said:
how much longer is the screw compared the the deepest gvooves on the tyre that will give you a good idea on how much its peirced into vital tyre strands
measured at the centre of the tyre where the tread is deepest, 3.25mm. At the edge, where it went in, 5.25mm.I have just been doing a bit of googling, and came across the hot vulcanization process. Is this an option? Sounds like it is more in the way of agricultural vehicles and the like, but there are quite a few claims that more "extreme" tyre damage can be repaired
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