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Tire loosing pressure through valve stem

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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I just got a new tire put on my back well (tubeless), and it ran fine for around a week, but when I took it out one morning the back tire was flat. :(
To bring it back to the shop, with a flat tire, will be a real pain in the ass, so hopefully someone has some advise on how best to fix the valve stem.
Using soapy water, I found that the leak is coming from between the nut and the wheel. Is there someway I can take out the valve stem without taking the tire off, or maybe loosening it and retorquing it, hoping it will seal better?
Any advise would be greatly appreciated!
 
Put a wrench on it & force it, if it brakes, it needed fixing anyway. SORRY! Yes, try loosening the nut, push the stem down, squirt a little dishwashing liquid down in around the stem then while pulling up on the stem, turn it to see if you can find a place that the stem seems to seat better, retighten & see what happens. Good luck
 
rphillips said:
Put a wrench on it & force it, if it brakes, it needed fixing anyway. SORRY! Yes, try loosening the nut, push the stem down, squirt a little dishwashing liquid down in around the stem then while pulling up on the stem, turn it to see if you can find a place that the stem seems to seat better, retighten & see what happens. Good luck
Click to expand...

The advice is good, but if this is the same stem that was on the wheel before the tire was replaced, you will likely have to replace it.

If you do remove the stem, try your best to get it out intact. You don't want the bottom to tear off as it will move around inside the tire every time you slow down or stop, and that could affect tire balance.
 
FWIW replace the stems when you change tires. They are not expensive but are critical.
 
Re: Tire loosing pressure through valve stem

I wouldnt bother with trying to Rube Goldberg a leaking valve stem. Once they leak, my opinion is they are basically done for. A new rubber stem is about $3 at your local dealer. You will need to remove the rear wheel from the bike and break the bead on one side of the tire. Use a couple of wooden wedges to hold the tire bead down far enough to get your hand in to insert and pull the new valve stem through. Its isnt particularly difficult and since the tire is new, breaking the bead should be pretty easy.

Looking for the quick and easy way usually takes three times as long and is ten times more frustrating that just biting the bullet and doing it right once.

Earl

gs400smith said:
I just got a new tire put on my back well (tubeless), and it ran fine for around a week, but when I took it out one morning the back tire was flat. :(
To bring it back to the shop, with a flat tire, will be a real pain in the ass, so hopefully someone has some advise on how best to fix the valve stem.
Using soapy water, I found that the leak is coming from between the nut and the wheel. Is there someway I can take out the valve stem without taking the tire off, or maybe loosening it and retorquing it, hoping it will seal better?
Any advise would be greatly appreciated!
Click to expand...
 
Thanks for all the advise! I tried retorquing, and it is still loosing pressure.
I TOTALLY agree that I don't want to find out at 70 mph that I'm really an incompetant mechanic.
I can only assume that for the price they charged me for a new tire, that they hopefully through in a valve stem as part of the package, but regardless, I'll have them fix their mistake.
Thanks again!
 
Me too, I assumed you just wanted to get it back to the dealer. PLEASE !! have the dealer find & fix the problem.
 
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