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ClassicSug
Newbie


Joined: 15 Sep 2018
Posts: 9



PostPosted: Sat Jan 05, 2019 2:53 pm    Post subject: Puncture Reply with quote

I had a puncture in a front tyre - a Pirelli P Zero Rosso 225/40 ZR 18
I’ve been told that it can be dangerous to drive performance cars with a repaired puncture, and worse still some cars should always have tyres with the same amount of tread wear on the same axle - so tyres should be replaced in pairs.
The repaired tyre has a lot of tread depth on it.
What should I do?
Is it safe to keep driving on the repaired tyre?
Should it be replaced?
Or should I buy two new tyres?
 
  
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alex yates
Le Mans
Le Mans


Joined: 06 Mar 2014
Posts: 15525
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Sat Jan 05, 2019 3:01 pm    Post subject: Reply with quote

Repair the puncture and forget about it.
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Bluebird911
Nürburgring


Joined: 29 May 2010
Posts: 442



PostPosted: Sat Jan 05, 2019 3:37 pm    Post subject: Reply with quote

It may be a performance car, but if you drive only at normal road speeds, it is a 'normal' car, so a puncture repair should be fine. I would be concerned if you drove hard with heavy cornering or heavy braking putting strain on the front tyres or if you spent holidays on the autoroutes or autobahns, regularly exceeding 3 digit speeds!! For me, I would replace such tyre(s) prior to one of these trips, the cost of a tyre these days is not drastic.

I think I have been lucky in that punctures I have had, have been in tyres with no more than 3mm of tread left and have changed the tyres in pairs as there seemed little point in a repair.

I think where you are coming from is that I have read that repairs can mean the speed rating and load rating can be invalid, but I think this is probably 'internet myth', but seems plausible. If you decide to repair, I would make sure it is a quality job by experienced repairers.
 
  
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Magic919
Suzuka


Joined: 05 Jun 2013
Posts: 1008
Location: Berkshire


PostPosted: Sat Jan 05, 2019 4:29 pm    Post subject: Reply with quote

A repair to BSAU159 is meant to maintain the speed rating. I’ve tested up to 170+ and it was fine.
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Bluebird911
Nürburgring


Joined: 29 May 2010
Posts: 442



PostPosted: Sat Jan 05, 2019 4:50 pm    Post subject: Reply with quote

thumbsup
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6143
Location: Brighton


PostPosted: Sat Jan 05, 2019 5:19 pm    Post subject: Reply with quote

Porsche state no puncture repairs .. it must be a new tyre .

OPC,s do puncture repairs Confused

OPC,s will Not do more than one in a single tyre though.

When replaceing a single tyre just make sure the tread difference between that and the other side is not more than 3mm.

Also never mix different makes of tyres or N rated and non N rated on the same axle .
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asterix_the_gaul
Suzuka


Joined: 20 Dec 2008
Posts: 1234
Location: Cheshire

1999 Porsche 996 Carrera 2

PostPosted: Sun Jan 06, 2019 7:02 am    Post subject: Reply with quote

Magic919 wrote:
A repair to BSAU159 is meant to maintain the speed rating. I’ve tested up to 170+ and it was fine.

Nice

Yes I've had plenty of repairs on different tyres never any problems. We are fortunate in the UK with the only way of legally repairing damage is via the British standards system which is very safe. I've had a tyre repaired in rural France many years ago which was done from outside the tyre without removing it, with the rubber cord/ glue and corkscrew method which was also fine for years but I would not accept that kind of repair now, I was 20 and didn't know any better!

The repairs you get done by garages done with mushroom patch in main tread area are classed minor repairs, major repairs are hardly ever done as sidewall repairs/those close to sidewalls generally have to get sent off to have a vulcanised repair as its a bit more specialised a job. Customers don't want to be without a tyre for a few days and be difficult to balance plus the margin is better selling a new tyre, so it's easiest only to offer the minor repair,
I've had a major repair done when I got a screw in the sidewall of a virtually new tyre and was surprised when they had it repaired by specialist but it worked and balanced up right.
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ClassicSug
Newbie


Joined: 15 Sep 2018
Posts: 9



PostPosted: Sun Jan 06, 2019 9:44 am    Post subject: Reply with quote

That’s very helpful guys - thanks - but lots of different opinions!
My repair was close to the sidewall so no plug was used.
It’s balanced fine.
Most of the use of the car is door to door - but in the summer I sometimes have a blast to London (approx 300 miles by motorway).
New cost seems to be about £120 per tyre.
I don’t know if the new tread depth would be more than 3mm more than the tyre on the other side.
Might just leave it for the moment
 
  
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Paynewright
Silverstone


Joined: 17 Apr 2018
Posts: 110
Location: Nr Lutterworth Leics


PostPosted: Sun Jan 06, 2019 1:56 pm    Post subject: Reply with quote

I carry a string repair kit in the Caterham as no spare wheel. I’d use as an emergency stop gap until I could get it repaired properly or replaced!

Ian
 
  
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