Got a flat but no holes!!

Discussion in 'GS Boxers' started by SylvainB, Sep 24, 2013.

  1. SylvainB

    SylvainB Adventurer

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    I finished work yesterday and took off with the bike. There is a road construction zone and I had to ride across a square road shoulder, made a little bump. Shortly after I felt some vagueness riding on the highway. I stopped to pick up some groceries and finally found the rear tire flat. I discharged a bottle of inflatable tire sealant, the tire filled up enough so I could get home.

    I found no hole when I inspected the tire. I had a set of Kenda Big Block installed a couple weeks ago. I checked the rear tire tonight and air pressure is ok.

    Is there a possibility that a knob got pushed in when riding on the square edge and the bead got broken letting air out??? Or it may be a joker being not funny!!
    #1
  2. gsweave

    gsweave Yinz, blinkers are on, JACKWAD!

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    ain't gospel but your valve stem is pooched
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  3. jdbalt

    jdbalt Been here awhile

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    That was my first thought. Did you check the air pressure? Or put air in before it went flat?
    #3
  4. RTCHIEF

    RTCHIEF Been here awhile

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    Check for debris in the valve cap. Jon
    #4
  5. Jazz62

    Jazz62 Long timer

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    Wouldn't the tire sealant be masking your ability to easily find a puncture? If the bead broke I think you would have felt something more dramatic than a little vagueness. And yes, it could also be your valve stem.
    #5
  6. Quirky

    Quirky Been here awhile

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    Just another idea. It could have been half flat before hitting the edge maybe.

    Also seen a couple slow leaking tyres on the bead due to the seems or little ridges in the tyre from manufacture that needed buffing out to seal properly.
    #6
  7. SylvainB

    SylvainB Adventurer

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    Thanks for your inputs.

    I'll start by changing the valve stem. Weird thing is it happened suddenly. I had no air pressure lost up to then.
    #7
  8. Deanowade

    Deanowade Chronic Dumbass

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    Check your rim for dents. I dinged mine a couple of years ago on a manhole in a construction zone. Bent it just enough that it would leak air whenever a small amount of pressure was applied to tire sidewall. It would hold pressure while sitting, but would slowly leak while under way. Or whenever I pressed a finger onto the sidewall above the dent.
    #8
  9. webjester

    webjester Adventurer

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    Ummh, what ever happened to the old fashioned method of just throwing the wheel in the bathtub and watching for bubbles?:eek1

    Keep in mind that it takes only the tiniest hole to drain the air over a week (as it happened to me). You have to watch really carefully for those tiny bubbles. But I found it and plugged it (another thread, search for my postings). Even knowing where it was I had to mark it with a pen to re-find it.

    Takes the guessing out of the task :D.
    #9
  10. genka

    genka SUV hater

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    ^^^^^^^ Exactly,
    I had a slow leak requiring me add air once or twice per week. I put the bike on the center stand and slowly rotated the wheel in a water filled pan. Found two leaks, on one of them I couldn't see any tire damage at all.
    #10
  11. webjester

    webjester Adventurer

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    Oh yes, and the plug just worked fine to the end of Metzeler's life. RIP.
    Put new Heidis on the bike a couple of weeks ago.:clap
    #11
  12. GrouchyGeezer

    GrouchyGeezer Not a Long Timer

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    It also takes away the diabolical pleasure of posting a thread with a heading like: "When I close one eye and push the bike backwards, it makes a funny noise. Why is that?" :pot

    Not to accuse the OP of trying to mess with folk, but.... Have people forgotten, or never learned, how to check a tire for a leak? Makes me want to ask them for their keys and have them turn away while I throw them as far as I can.

    Perhaps I'm from an age where mechanical ability was more highly rated than getting laid. We didn't get much, but we could fix things.

    Just the ramblings of an old fekin' fossil.
    #12
  13. Ravenslair

    Ravenslair Been here awhile

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    Something else that works is a little dish soap mixed with water. Liberally spray it all over the wheel and rim to see if bubbles start to form. That way you do not have to remove the wheel or try to spin it around in a big tub of water.
    #13
  14. KShow

    KShow Been here awhile

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    :rofl:rofl
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  15. SylvainB

    SylvainB Adventurer

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    No offense, but if I asked the question it's because I found no bubbles in the pan:eek1!!

    In 4 days, the tire hasn't lost a pound. It may be that the tire ssealant did its job or the tire bead got broken somehow.

    Thanks for all inputs :lol3
    #15
  16. SylvainB

    SylvainB Adventurer

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  17. H96669

    H96669 A proud pragmatist.

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    Glad you found it....darn bead leaks can be a real pain. Inflate at proper pressure and won't show many bubbles. Over time and when pressure drops to the -20psi or so sure leaks a lot faster. Hit pothole....flat quick.:eek1

    I fixed enough of them on cars in my youth. Then two more on the bushcar last weekend. And then a "possible" bike one, looks like the PO let the little rubber thingies go into the bead and just that marked the bead.:eek1

    [​IMG]

    And cracked from running on low pressure....near new tire. Not going back on that wheel.:cry:cry:cry

    Can't be worse than what he did with the front, put "beads" in for balancing and left quite a few between the rim and tire. That one sure was leaking.:wink: And between the beads all clumped together from the "fix-a-flat" and the product itself, took me over an hour just to clean the rim.:cry

    Clean rims:eek1:eek1:eek1....that one also had leftover "fix-a-flat".:cry:cry:crySure sticks good when all dried out.:baldy

    [​IMG]
    #17
  18. Quirky

    Quirky Been here awhile

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    Good stuff! Just noticed my shite spelling (in green) fixed now :1drink
    #18
  19. SylvainB

    SylvainB Adventurer

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    Took the tire off the rim and found a slice of the inner bead torn off. No wonder it leaked. I called the dealer I bought the tire from to tell him about the what I found. I ordered a new rear tire and told him I'll bring the damaged one and see what can be done about it. I'll see if this guy wants my business or not. I buy 3 to 4 sets of bike tires each season for the last 3 years.

    Well everything seem ok. I got a new inspected BB on the gs. I'm back on the beast.
    #19