Mystery flat
Anyone ever had a mystery flat before? Did a 15 mile ride w/ my son on our MTBs on MUP 2 Sundays ago, no problem. 4 days later, walk past my bike in garage to find rear flat. Check the tire all around w/ a flashlight, nothing found. Remove the tube, pump it up greatly, no leak detected, no loss of air after 30 min. Finger-sweep the inside of the tire, nothing found. Check the rim and rim tape, no problem found. Put same tube back into same tire and pump up to 80 PSI. 4 days later, absolutely no deflation at all. No loss of air to date.. What gives!!!!
|
Probably the valve. Had a spot where it leaked. Now that you turned it or moved it, it sealed back up. Valves can be quite annoying sometimes.
|
We've had the same thing happen a couple times. Totally flat tire, pump it up and it never loses air again. I figured it was either a transient valve issue or our cats were trying to mess with our minds.
|
Sticky valve ...
|
You might want to pump up the tube and check it for a slow leak. Sometimes, you can get something in the tire that will puncture the tube but the offending object is very hard to find. I once had a sliver of glass in the tire that was in a very small cut. I was only able to find it when I pumped up the tire. The pressure opened the cut a bit and I was able to extract the glass. This kind of situation is pretty rare though.
|
The green goop, Slime, will gum up the valve to do that too. I have to check pressure every time I go out.
|
For slow leaks pump the tube up to twice the normal size and move it around in a sink filled with water.
You may find some very very slow bubbles. |
Did you kill your son on the ride?
Retribution. |
Originally Posted by stapfam
(Post 14109282)
Did you kill your son on the ride?
Retribution. |
Originally Posted by knurly
(Post 14109176)
The green goop, Slime, will gum up the valve to do that too. I have to check pressure every time I go out.
|
Originally Posted by stapfam
(Post 14109282)
Did you kill your son on the ride? |
That happened to me once last summer. I had a flat on a ride and replaced the tube with a brand new one. Filled it with CO2 and rode home. 2 days later I found the tire flat again the night before a ride. Took the wheel off, checked the tube and found nothing. It was then I remembered that CO2 will leak out of a tire quicker than air. Refilled from my floor pump and still riding the same tire and tube no problem.
|
Gremlins come out at night while you're sleeping, unscrew the cap, let out the air, and screw the cap back on.
|
Sure glad AMC no longer makes them. I can say that in this forum and people will get it. Try that in another forum here and ......crickets.
|
Originally Posted by bigbadwullf
(Post 14109745)
Sure glad AMC no longer makes them. I can say that in this forum and people will get it. Try that in another forum here and ......crickets.
Plymouth made the Cricket |
A tiny wire from a steel belted radial can sit itself in your tire, only to show itself when it feels like it - same for a goathead. Very hard to locate.
|
Originally Posted by WC89
(Post 14109553)
Didn't kill him but he was wiped out. 2 days earlier we did 15 mi on another MUP. He's 10 yrs old. It'll be a while before he can destroy me on the bike:). Running, or anything that requires lateral movement...then he's got me by several steps:o
Hey, that's great. I still ride with my son and his son. Just love it. |
By the way, you did have the valve lock screwed down tight on that valve stem, didnt you?
|
Originally Posted by OldsCOOL
(Post 14111407)
By the way, you did have the valve lock screwed down tight on that valve stem, didnt you? |
Originally Posted by 10 Wheels
(Post 14109208)
For slow leaks pump the tube up to twice the normal size and move it around in a sink filled with water.
You may find some very very slow bubbles. |
Originally Posted by dendawg
(Post 14110103)
FAIL
Plymouth made the Cricket |
Originally Posted by WC89
(Post 14112606)
Sure did. As of yesterday, it's still fully inflated. That's a strange one! Yep. Love riding w/ my son. Something I never got to do as a kid w/ my father, although, adults riding bikes back in the 60s was almost non-existent:(
|
A gremlin got this one, and did not even go flat!
http://i783.photobucket.com/albums/y...s/IMG_7362.jpg |
Originally Posted by Doug64
(Post 14119601)
A gremlin got this one, and did not even go flat!
http://i783.photobucket.com/albums/y...s/IMG_7362.jpg |
+1 on a Mystery Flat.
Yesterday, I checked the Gatorskin tires and got them to pressure(I get them to 115psi--the max is 120psi). Okay, all is well. So I start out on the ride and about 1/4 into it I think gee I seem a tad sluggish---as I start around a traffic circle I feel the rear wheel skid a bit out and stop after I'm out of the traffic circle about 40 feet down the way. I dismount and low and behold, the rear tire is completely flat. What the .....! I remove the wheel from the rear and inspecting the outside, I find nothing. Rather than trying to locate the leak, I pull out my spare tube from the bag and remove the old tube. After checking inside the tire thoroughly, I begin to get the new tube in. Well, I use my Topeak pump and pump the tire up to the desired pressure and when I remove the pump I see the the stem sheared with the nut---what! The tube seems to be keeping pressure though. Since I don't want to be 8 miles from home with another flat, I go home. At home I check the initial tube very thoroughly using a pan of water to find leaks...not...one...single...bit...of...leaking. I get the new tube out with the broken stem and replace it with the original tube and pump it up with my floor pump. I start out on my ride again and stop at the LBS and buy 2 spare tubes and 3 more tire levers to keep at home rather than having to dig out the ones in the bag if I do any repair at home. The woman at the LBS says that she's sheared off a stem(tip) herself before. I'll need to be more careful using the hand pump next time. Checked the tire this morning...the tire is fine and inflated. I'm wondering if I forgot to screw down the nut to prevent air release and causing it to release air as I rode. |
All times are GMT -6. The time now is 05:48 PM. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.