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Slow puncture

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  • 07-12-2008 10:51pm
    #1
    tin79
    Closed Accounts Posts: 1,270 ✭✭✭


    Hi all

    my car has developed a very slow puncture. its dropping from a pressure of 30 to 16-18 over around a monh, the rest are all fine.

    are these sort of slow puncutres difficult for tyre centres to find and fix? whats the best way of dealing with it?

    any info appreciated


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    #2
    crosstownk
    Registered Users Posts: 12,863 ✭✭✭✭crosstownk


    Check the tyre for a nail or a screw. If you can't see one then remove the dust cap from the valve. Cover the valve in spit - if it bubbles the you've a dodgey valve. If none of that works then could have a bad tyre/rim seal due to a damaged rim.
    Untitled Image




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    #3
    thetyreman
    Banned (with Prison Access) Posts: 451 ✭✭thetyreman


    tin79 wrote: »
    Hi all

    my car has developed a very slow puncture. its dropping from a pressure of 30 to 16-18 over around a monh, the rest are all fine.

    are these sort of slow puncutres difficult for tyre centres to find and fix? whats the best way of dealing with it?

    any info appreciated


    Any tyre shop will be able to check it for you (they have ways) just tell them the story,it couldbe a few possible things,worst case and last resort would be to stick a tube in it (assumeing its tubeless as is)it is very bad for the tyre/road holding/fuel consumption to be underinflated for such a long timeicon14.gif


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    #4
    Berty
    Registered Users Posts: 26,149 ✭✭✭✭Berty


    Nail or screw = around €10 to fix.


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    #5
    thetyreman
    Banned (with Prison Access) Posts: 451 ✭✭thetyreman


    Its either a leaking rim/wheel or a leaking valve/plunger or the base of the tubeless valve.
    A screw or nail would deflate much quicker than a month.....


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    #6
    tin79
    Closed Accounts Posts: 1,270 ✭✭✭tin79


    Hi

    Thanks all

    Yeah it defo not a nail or screw i have checked all that, the valve seems fine too as i have checked that, but as its so slow it may be leaking too slowly for me to see.

    may be the rim too i guess.


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    #7
    Thoie
    Registered Users Posts: 6,344 ✭✭✭Thoie


    thetyreman wrote: »
    Any tyre shop will be able to check it for you (they have ways)

    The way generally involves a bucket of a thickish liquid (water and loads of washing up liquid, not agitated) and a paintbrush. You could do this at home, but it's easier just to wander along to a tyre shop and get it fixed. It won't be very expensive.


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    #8
    stapeler
    Registered Users Posts: 1,086 ✭✭✭stapeler


    Check your wheel trim. Occasionally if they're a bit loose they can push against the valve and cause air to leak out when your moving.


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