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Flat Front Tyre

 
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drgeoffbryant(at)gmail.co
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PostPosted: Sun Jan 24, 2010 2:01 am    Post subject: Flat Front Tyre Reply with quote

I recently took off with a fully inflated front tyre and minutes later landed on a dead flat one and ground the spat on the tarmac but thankfully no more drastic damage.  Though I had come from a grass strip, at the postmortem I found no thorn  but a tube  tear near the valve stem. I am wondering whether the valve stem clipped the nose fork and caused the problem. I had fitted the new axle mod a month earlier and did not have the valve cap on. Interested in Grumpy's and any other experience.  Geoff Bryant VH-XVR 170+ hrs and 12+ months to date Adelaide South Australia
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gengrumpy(at)aol.com
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PostPosted: Sun Jan 24, 2010 11:56 am    Post subject: Flat Front Tyre Reply with quote

Appears my flat was from the valve core. I had aired it up 2 days prior before flying, so it was a fairly slow leak (appeared fine 1 hr later after flying).

Had trouble getting the chuck to depress the valve core to allow air into the tube, so my suspicion is the valve core got out of whack.
Replaced valve core and so far it is holding pressure. Had trouble again getting the valve core depressed enough to allow air in.
Appears to me that the valve core recesses too far into the nose tube (90 degree valve stem).
Gonna call Desser on Monday and ask about different valve core.
Going to look at all my pants during annual next month, and maybe shave a little off the bottom of each one so that bottom of the pants are slightly above the wheel rim.
grumpy
N184JM

On Jan 24, 2010, at 3:55 AM, Geoff Bryant wrote:
Quote:

I recently took off with a fully inflated front tyre and minutes later landed on a dead flat one and ground the spat on the tarmac but thankfully no more drastic damage. Though I had come from a grass strip, at the postmortem I found no thorn but a tube tear near the valve stem. I am wondering whether the valve stem clipped the nose fork and caused the problem. I had fitted the new axle mod a month earlier and did not have the valve cap on. Interested in Grumpy's and any other experience. Geoff Bryant VH-XVR 170+ hrs and 12+ months to date Adelaide South Australia
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