Repeatedly flat front

Discussion in 'The Garage' started by apostis, Sep 30, 2019.

  1. Bigger Al

    Bigger Al Still a stupid tire guy Supporter

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    Pinches from tire irons are almost always along the circumference, not radially located. I've pinched a looooot of tubes in 30 years of tire work. :bluduh
    #21
  2. apostis

    apostis Adventurer

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    Good to know. Again, the tube in the picture is the original one though so this hasn't been messed with. At least not by anyone else than at a factory.
    #22
  3. yokesman

    yokesman Long timer

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    if add some air to the tube to remove the folds, no pinch flats.
    #23
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  4. 9mm

    9mm Been here awhile

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    Ain’t motorcycles fun!
    #24
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  5. Sonny S.

    Sonny S. Long timer

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    There could still be a small burr on the rim straight from the factory. Just because it's new doesn't mean it's right.
    #25
  6. Boatman

    Boatman Membership has it's privileges ;-) Supporter

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    That's funny I found a tire iron in a tire a few years ago,,,,, maybe it was yours!!
    #26
  7. sieg

    sieg Wearing out tires......2 at a time, day after day. Supporter

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    Send it back!
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  8. trumpet

    trumpet Group W Bench

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    So true, had this happen. Found a shard of glass embedded in the tire.
    #28
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  9. bwringer

    bwringer Gimpy, Yet Alacritous

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    Yeah, fresh blood makes a decent tire mounting lube, at least until it goes all sticky.

    I've stuck my fingers a few times locating punctures... :becca


    I like the toilet paper idea above -- wipe around and see what sticks. Safe, and you could do the same with cloth, fleece, or microfiber.
    #29
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  10. bisbonian

    bisbonian Long timer

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    The 2 flats don't have to be related. I had a tube which was folded over on itself when installed, it lasted a good long time until all of a sudden it lost all air.

    Let's face it, the only common element between the 2 flats is the wheel itself, so unless you've but a burr or something going on with the wheel then it's coincidence.
    #30
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  11. apostis

    apostis Adventurer

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    Yeah makes sense.
    I had some time today and inflated the tire again. And it seems to hold the air so far! Very odd.

    I haven't mounted the tire again yet so I haven't used it yet. I put my whole 80kg/180?lbs on it to see if it affects the pressure. It did seem to lose about 0.5psi from that initially. But after repeatedly putting my weight on it it didn't seem to change any further.

    Not sure this is helpful for my issue now.
    I'd really like to not bother opening the tire again but I'm assuming it will lose pressure again eventually.
    There must be some kind of damage of it leaked air once, right?
    Or could this possibly be from the valve being unhappy for being in a position that's 1mm off or something and that got fixed now?
    Then again the tire did stay inflated before as well, but then leaked after a few weeks. Or it leaked right away after installing it already and I never noticed. But I was riding every day so that seems odd but who knows.
    #31
  12. Sonny S.

    Sonny S. Long timer

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    Schrader valve tight? Leaking?
    #32
  13. apostis

    apostis Adventurer

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    I actually hadn't touched the valve at all. What I meant was if by the tire being flat the tube and therefore the valve may have shifted within the tire and now is not leaking air anymore. Not sure, that might not make much sense.

    I haven't removed the valve stem at any time, neither when first fitting that tube and tire nor now when re inflating it.
    Do you think that's an issue? Should I remove the valve stem and put it back in again? Would there be any purpose to that?
    #33
  14. Sonny S.

    Sonny S. Long timer

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    Take the cap off and wipe spit on it and see if it bubbles. That's my method anyway. You can spray glass cleaner or something on it. Ya never know.. Can't hurt.
    #34
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  15. sieg

    sieg Wearing out tires......2 at a time, day after day. Supporter

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    Well?
    #35
  16. Coma

    Coma Long timer Supporter

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    First thing I do with a new tube is tighten the core in the valve.
    #36