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Roadster new tyres go flat in a couple of days

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  • Roadster new tyres go flat in a couple of days

    Hi there. My Roadster front tyres go flat in a couple of days. I am continually having to pump them up and it is starting to drive me nuts. The tyres (Kumhos) are new, no punctures. Had the same problem with the old tyres. Is it because the wheels are old and the tyres don't fit properly to the wheels and need replacing? Does anyone have any experience of this problem? If I need new wheels, can you recommend a make and/or model? There is a huge variety of style and price out there. Thanks so much for any help.

  • #2
    Old aluminium rims often leak around the valve because of corrosion. Find the leak by immersing in water or use soapy water applied by brush.

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    • #3
      You will need to get your wheels refurbished (A lot cheaper than buying new wheels).

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      • #4
        Originally posted by tolsen View Post
        Old aluminium rims often leak around the valve because of corrosion
        .

        And right around the bead (where the tyre meets the rim). Did your tyre fitter not give the rim a bit of a scrub?

        Originally posted by tolsen View Post
        Find the leak by immersing in water or use soapy water applied by brush.
        Easiest way to spot leaking at bead is remove wheel, ensure it's adequately inflated, lay it down on the ground flat, and pour water from a watering can around the bead and look for bubbles. Turn over and do the other side. Smart rims are notorious for it.

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        • #5
          Almost every tyre fitter will install a new valve. Every now and then, these valves are faulty when fitted and leak.

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          • #6
            And every time a tyre has air added the possibility of some debris entering and stopping the valve sealing. Which is why we put a dob of spit on and watch for it bubbling prior to replacing the valve cap.

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            • #7
              As others have said a refurb will fix the problem also I dont know which alloys you have but smart wheels are not very strong a small pot hole will bend my Brabus wheels with ease but they can be fixed as for a refurb I've just had mine done I've had loads done in the past by the same local company they are £35 each a bargain compared with new. My wife's Rav4 was the same and after a refurb I havent had to touch them again that was 14 months ago the funny thing is they are better then when the car was new.

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              • #8
                Hi everyone, thank you so much for all your helpful replies. I'm really grateful. All very encouraging. There is a Black Circles in my town. Would that be a good place to take it for a refurb? If not, what kind of place should I go to (since my small, local garage didn't mention this problem when they fitted the tyres, nor did they do anything about it)? Thanks again

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                • #9
                  Google "alloy wheel refurbishment" and look for whoever is in your local area.

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                  • #10
                    Surely it's better to rule out the cheap and simple things first. Go back to the place that fitted the tyres, tell them which ones haven't held pressure properly and let them check.
                    If it is a leaking valve it'll be a free fix. If it's leaking from the bead, they might take the tyres off and try roughing up the mating surfaces. Again, for free.
                    Certainly better than going all in for a £300 refurb when you aren't sure that's the problem.

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                    • #11
                      Originally posted by Evilution View Post
                      Surely it's better to rule out the cheap and simple things first. Go back to the place that fitted the tyres, tell them which ones haven't held pressure properly and let them check.
                      If it is a leaking valve it'll be a free fix. If it's leaking from the bead, they might take the tyres off and try roughing up the mating surfaces. Again, for free.
                      Certainly better than going all in for a £300 refurb when you aren't sure that's the problem.

                      Fair points.
                      With my previous car my tyre fitter would take a wire brush to the wheel bead and give it a quick scrub. Never had sealing problems. As Evil says, their job is to mount the tyre such that it doesn't leak - and a bit of rim corrosion is par for the course - they should expect some.

                      Debora, did you buy the tyres from the fitters or elsewhere?

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                      • #12
                        Thanks Evilution and Thrumbleux. I ordered the tyres through my local small garage (during an MOT), which does tyres business for Black Circles, though my garage is not called Black Circles. I should perhaps give them a call and ask them to have a look at the wheels. As you say, the refurb price is prohibitive. I've been quoted £380 for four.

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                        • #13
                          Originally posted by Debora View Post
                          Thanks Evilution and Thrumbleux. I ordered the tyres through my local small garage (during an MOT), which does tyres business for Black Circles, though my garage is not called Black Circles. I should perhaps give them a call and ask them to have a look at the wheels.
                          That there's a trade link between them should see some co-operation from BC. If BC don't co-operate go to your garage and mention it there - implying you will take your trade elsewhere.
                          The reason I asked, was, if you had bought the tyres as cheaply as you could via the internet then fitting service may have been shabby as a consequence. But the link between the two companies saw one of them get the tyre sale and hence, profit.

                          Originally posted by Debora View Post
                          As you say, the refurb price is prohibitive. I've been quoted £380 for four.
                          At worst, cut a deal for tyre removal and refitting, get the tyres removed, take the wheels and give them a good scrub with a wire brush (where the tyre seats) then have them refit the tyres. (Mark the tyre relative to the valve to save rebalancing). If you have to do it that way it will cost about a tenth of re-furb. Press BC first to do it for you for free though!

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                          • #14
                            Quoted £380 for a four-wheel refurb??? I pay £45 a wheel for mine....

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