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Seating Car Tyre

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Fin
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PostPosted: 19:47 - 07 Jan 2018    Post subject: Seating Car Tyre Reply with quote

Start of the weekend I had 2 brand new cheap tyres to fit to my car, easy enough I thought, got the old tyres off easy enough, got the new tyres on the rim but that's it Sad

Can't get the fuckers to seat, the sidewalls are pressed in so much that there's at least an inch gap between the rubber and the rim, looking into it there are people who use starter fluid to create an explosion which seats the tyre. I bought some today to try it but the gaps too big and all the explosion power just goes through the gap.

Here's a picture of one of the new tyres, there's about a 3" gap but it needs to be 5" or so before it will touch the rim and I can blow up with my compressor.
https://i.imgur.com/Bhotxdt.jpg
Old Tyre for comparison
https://i.imgur.com/jP8Q6Os.jpg

Here's the gap with the tyre on, ideally there shouldn't be any gap and you should just be able to inflate the tyre with compressed air which will push the walls out and seat it onto the rim.
https://i.imgur.com/59pKmPK.png

I did see a video of some old dude using a tyre soap to fill the gap, I also bought 5kg of tyre paste today but it's not the right stuff.

Finally I tried using a small ratchet strap around the outside but I couldn't get it that tight and the walls only seemed to cave in closer together.

Anyone came across this problem before changing tyres?
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M.C
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PostPosted: 19:53 - 07 Jan 2018    Post subject: Re: Seating Car Tyre Reply with quote

Fin wrote:
Anyone came across this problem before changing tyres?

No cos I pay a tyre shop a fiver to do it.
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andym
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PostPosted: 01:19 - 08 Jan 2018    Post subject: Reply with quote

I've seen a 12v air compressor inflate a tyre that had come off the rim.... but that was still on the car and required a bit of thumping the tyre to get the wall as close to the rim as possible.
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sickpup
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PostPosted: 10:21 - 08 Jan 2018    Post subject: Reply with quote

Can't think of the correct name but you can buy a big rubber ring to make a temporary seal which is pushed out as the tyre expands. You could also buy a Cheetah air blaster.

<edit>One of these.</edit>
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rpsmith79
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PostPosted: 11:53 - 08 Jan 2018    Post subject: Reply with quote

mpd72 wrote:
What size tyre and what size rim in width?

Plenty of kids in the Vee-Dub science stretch tyres, but don’t seem to struggle.


Yes, but they don't try and do it themselves in the garage, they take it to specialist tyre fitters to "stretch" tyres
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RhynoCZ
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PostPosted: 12:36 - 08 Jan 2018    Post subject: Reply with quote

mpd72 wrote:
What size tyre and what size rim in width?

Plenty of kids in the Vee-Dub science stretch tyres, but don’t seem to struggle.


They use smaller tyres on wider/bigger diameter rims. OP has the opposite problem, so it seems at least. Thinking
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weasley
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PostPosted: 13:54 - 08 Jan 2018    Post subject: Reply with quote

One trick I have seen used is to put a ratchet strap around the tyre and compress it.
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doggone
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PostPosted: 14:04 - 08 Jan 2018    Post subject: Reply with quote

weasley wrote:
One trick I have seen used is to put a ratchet strap around the tyre and compress it.

He says tried a small one but a proper one like lorry drivers use should do it.
The fun way is to squirt lighter fuel or similar inside and explode it, only don't try this at home.

You need a compressor with bigger reserve,
Taking the valve out will allow a more sudden increase.
To do commercial tyres fitters sometimes use a device like a propane cylinder with maybe 200psi in it, and you can let the whole lot out instantaneously with a handle connected to something like a hairdryer nozzle.
https://www.youtube.com/watch?v=aLBRMpyU_Z0
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Monkeywrenche...
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PostPosted: 14:05 - 08 Jan 2018    Post subject: Reply with quote

Put THe tyre on the floor against the wall (upright) with the tyre centered so the gaps the same both sides connect the air line the blow it up while simultaneously pushing the the tyre in with your knee against the wall and thoward the top llike you're trying to force it into the corner where the wall and floor meet., hard, bounce it if necessary.
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rpsmith79
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PostPosted: 16:07 - 08 Jan 2018    Post subject: Reply with quote

mpd72 wrote:
Good luck trying to find a specialist tyre fitter who will fit an illegally narrow tyre to a rim. Thumbs Up

You'd be amazed how much work some of these younger Vee-Dub enthusiasts do themselves. Some even band their own steel wheels before stretching the tyres back over the wider rims.


Illegal you say, what law would that be then?

I was (and still am) part of the VW scene in and around Sheffield, and there are a number of "friendly" tyre fitter who will happily stretch fit tyres for you

I am however very much in the camp that is is stupid and dangerous (but that is another topic entirely), but currently there is no law against it (or at least none that i am aware of)

You do know why many people fit stretched tyres though don't you, it's to actually allow them to legally fit wheels wider than the body work, but there are laws/rules stating that the tyre tread must be within the confines of the bodywork, hence stretching the tyres so that the actual tread is just a hairs breadth within the wheel arch but the wheel itself protrudes outside the arch
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iooi
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PostPosted: 18:41 - 08 Jan 2018    Post subject: Reply with quote

rpsmith79 wrote:

Illegal you say, what law would that be then?


Reg 63 MV (Con and Use) Regs 1986 could be invoked as it states :

motor cars and motor cycles, not being agricultural motor vehicles or pedestrian-controlled vehicles shall be equipped with wings or other similar fittings to catch, so far as practicable, mud or water thrown up by the rotation of its wheels or tracks unless adequate protection is afforded by the body of the vehicle.

Max fine: £1000 more if a goods/pass veh involved.

or even Section 40A RT Act 1988 - parts and accessories in such condition as likely to cause danger

Max fine £2500 (more if goods/pass vehicle), discretionary disq, 3 points.
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rpsmith79
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PostPosted: 19:06 - 08 Jan 2018    Post subject: Reply with quote

iooi wrote:

Reg 63 MV (Con and Use) Regs 1986 could be invoked as it states :

motor cars and motor cycles, not being agricultural motor vehicles or pedestrian-controlled vehicles shall be equipped with wings or other similar fittings to catch, so far as practicable, mud or water thrown up by the rotation of its wheels or tracks unless adequate protection is afforded by the body of the vehicle.

Max fine: £1000 more if a goods/pass veh involved.

or even Section 40A RT Act 1988 - parts and accessories in such condition as likely to cause danger

Max fine £2500 (more if goods/pass vehicle), discretionary disq, 3 points.


As i said, the whole point of the tyre stretch is to keep the tyre tread within the confines of the vehicle body, and the tread is the bit that throws up the mud & water (i'm guessing this is where the whole thing started from, to abide by this rule)

However, many people do just stretch their tyres for the looks, or to get their wheels "flush" with the body/wheel arch

As dumb and dangerous as it is, it appears to be perfectly legal to fit ill fitting tyres to cars
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weasley
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PostPosted: 20:17 - 08 Jan 2018    Post subject: Reply with quote

rpsmith79 wrote:
Illegal you say, what law would that be then?

Motor Vehicles (Approval) Regulations 2001, item 16, requirement 4?

Quote:
4. Each tyre fitted to the vehicle shall be of a nominal size appropriate to the wheel to which it is fitted.

Best I can do. Other than that it appears to come down to opinion and interpretation of stuff like “improperly fitted” or “dangerous condition”.
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Fin
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PostPosted: 21:47 - 08 Jan 2018    Post subject: Reply with quote

sickpup wrote:
Can't think of the correct name but you can buy a big rubber ring to make a temporary seal which is pushed out as the tyre expands. You could also buy a Cheetah air blaster.

<edit>One of these.</edit>



Cheers, never seen one of them before, gives me an idea to use a bmx inner tube if I can find one lying around. £30 or whatever they cost doesn't justify it.

I may well end up taking it to a tyre shop with a cheatah and hope it works. With regards to tyre and rim size I can confirm they match, it's just the shitty Chinese tyres and possibly where they've been stacked wong.intentional
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rpsmith79
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PostPosted: 08:12 - 09 Jan 2018    Post subject: Reply with quote

mpd72 wrote:
rpsmith79 wrote:


Illegal you say, what law would that be then?

I was (and still am) part of the VW scene in and around Sheffield, and there are a number of "friendly" tyre fitter who will happily stretch fit tyres for you

I am however very much in the camp that is is stupid and dangerous (but that is another topic entirely), but currently there is no law against it (or at least none that i am aware of)

You do know why many people fit stretched tyres though don't you, it's to actually allow them to legally fit wheels wider than the body work, but there are laws/rules stating that the tyre tread must be within the confines of the bodywork, hence stretching the tyres so that the actual tread is just a hairs breadth within the wheel arch but the wheel itself protrudes outside the arch


What VW do you drive?

My Shuttle campervan conversion is fairly well know in the scene. The build thread on the T5 Forum has around 30,000 views. Thumbs Up


I drive a Honda Civic, and it's build thread has exactly Zero views, your point being what?

Now how about you tell me what this law about stretching tyres
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duhawkz
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PostPosted: 09:55 - 09 Jan 2018    Post subject: Reply with quote

It says here they'd fall foul of both construction and use regs and possibly dangerous condition too.

https://police.community/topic/5981-stretched-tyres/

The rozzers wrote:
Not withstanding the fact your car looks ridiculous with tyres like this, they're not legal at all - they tyres won't have been fitted within the manufacturer's specs, so you're looking at Construction and Use Regs 26 & 27... I'd also be considering dangerous condition (S40A RTA).

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rpsmith79
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PostPosted: 10:16 - 09 Jan 2018    Post subject: Reply with quote

duhawkz wrote:
It says here they'd fall foul of both construction and use regs and possibly dangerous condition too.

https://police.community/topic/5981-stretched-tyres/

The rozzers wrote:
Not withstanding the fact your car looks ridiculous with tyres like this, they're not legal at all - they tyres won't have been fitted within the manufacturer's specs, so you're looking at Construction and Use Regs 26 & 27... I'd also be considering dangerous condition (S40A RTA).


Just a shame most Police departments don't seem to either know or enforce this rule then, as it is starting to get out of control around my way, add to that the silly camber some of them are running, they barely have any of the tyre actually in contact with the road
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colink98
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PostPosted: 10:20 - 09 Jan 2018    Post subject: Reply with quote

for the people not in the know about these things....

https://www.barryboys.co.uk/photos17/4590bd472a47b081c66a1af83ac77d33.jpg
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rpsmith79
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PostPosted: 11:41 - 09 Jan 2018    Post subject: Reply with quote

mpd72 wrote:
You're not really well connected to the Vee Dub scene then, where this practice is common, are you? I am and know plenty of people who not only for their own stretch tyres, but even band their won steels.


Sorry, i wasn't aware i had to own a VW to follow/keep up with the scene. i do humbly apologise Rolling Eyes

The scene must have really changed in the last 4 weeks since i sold my Rocco

Good to know that there are now MOT guidelines though, but that still won't stop folk either finding a "friendly" MOT tester, or fitting their standard wheels back on
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M.C
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PostPosted: 13:11 - 09 Jan 2018    Post subject: Reply with quote

ColinK98 wrote:
for the people not in the know about these things....

https://www.barryboys.co.uk/photos17/4590bd472a47b081c66a1af83ac77d33.jpg

Owned by a fat bloke?
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