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Old 09-24-2013, 06:30 PM   #1
SylvainB OP
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Location: Verchučres, QC, Can. Land of the looooooong winter
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Got a flat but no holes!!

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!!
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Old 09-24-2013, 06:39 PM   #2
gsweave
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ain't gospel but your valve stem is pooched
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Old 09-24-2013, 06:43 PM   #3
jdbalt
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Valve stem

That was my first thought. Did you check the air pressure? Or put air in before it went flat?
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Old 09-24-2013, 06:51 PM   #4
RTCHIEF
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Valve cap

Check for debris in the valve cap. Jon
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Old 09-24-2013, 06:53 PM   #5
Jazz62
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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.
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Old 09-25-2013, 01:44 AM   #6
Quirky
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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.
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Old 09-25-2013, 06:48 AM   #7
SylvainB OP
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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.
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Old 09-25-2013, 09:23 AM   #8
Deanowade
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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.
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Old 09-25-2013, 09:55 AM   #9
webjester
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Bubbles

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

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 .
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Old 09-25-2013, 10:01 AM   #10
genka
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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.
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Old 09-25-2013, 10:02 AM   #11
webjester
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Heidis

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.
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Old 09-25-2013, 11:38 AM   #12
GrouchyGeezer
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Quote:
Originally Posted by webjester View Post
Takes the guessing out of the task .
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?"

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.
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Old 09-25-2013, 02:09 PM   #13
Ravenslair
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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.
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Old 09-25-2013, 02:31 PM   #14
KShow
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Quote:
Originally Posted by GrouchyGeezer View Post

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.
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Old 09-26-2013, 04:41 AM   #15
SylvainB OP
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Quote:
Originally Posted by GrouchyGeezer View Post
....... 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.
.
No offense, but if I asked the question it's because I found no bubbles in the pan!!

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
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Present: K16GT 2012, F800S 2008 (wife's),R1100GS 1997, R100/7 1978, wrf 426 2002
Past: K12GT 2008, ST1300 2003, Sach 250wr 1978, Husky 390wr, Honda xr500r late 70's, Husky 360wr, PE 250 1976... I know I'm old
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