I'm puzzled - VTXOA
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post #1 of 11 (permalink) Old 07-29-2019, 11:23 PM Thread Starter
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I'm puzzled

I've got a situation. Saturday I went to change my front tire, tube got destroyed, so I went and sealed my spokes, I did my rear wheel last March and also went darkside. I bought a pair of 90 degree aluminum bike master valve stems when I did that, I used one on the rear, the other stayed in the package until Saturday. Ok I went and bought the 3M 5200FS, cleaned and sealed the rim, put valve stem in with loc tite on the threads and let it sit from 5:30 pm until 3:00 the next day. Mounted tire,aired it up,bead seated great,aired up to 35psi, checked for leaks, all ok. Installed tire went for a ride. Monday morning, checked tire pressure before riding to work. That's when i realized something's screwy. Can't get a reading on my gauge,I tried all 4 of my air gauges. I removed the valve core,no air came out. Tire is tight,fully inflated, but air won't come out with core removed. I put a little spit on the stem,after about 10 seconds it pops. I blew air in with a blowgun, not sure if any went in but can't get any out. I'm thinking I'll have to remove tire, break valve stem off,replace valve stem. Any ideas?please?
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post #2 of 11 (permalink) Old 07-30-2019, 03:55 AM
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no air coming out with the valve core removed sounds like some sealer is clogging up the stem or the rubber stem gasket is defective. Quick way to find out is to stick a piece of wire down the stem feel if something is blocking it.
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post #3 of 11 (permalink) Old 07-30-2019, 11:49 AM
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Sounds like a clog under the valve stem.
When removing the valve stem, be very careful, wear good protection, probably full goggles, maybe even a face shield. If the clog gets dislodged while the stem is coming out, it will shoot out like a rocket under so much pressure.
Same precaution for cleaning the glob after the stem is out, if air still won't come out. The clog could come out suddenly and be dangerous as well.
Be careful, don't lose an eye.

Good luck and let us know what you find. Interested in the outcome.
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post #4 of 11 (permalink) Old 08-01-2019, 10:02 PM Thread Starter
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Can't unclog it, the 90* valve stem won't let me get a wire thru it. I'll have to order another valve stem before I cut, drill,break the one that's clogged. Bad thing is I can't check air pressure and can't put ride-on in. Good thing is it doesn't feel out of balance and doesn't seem to be losing air. I'll try harder this weekend to dislodge it before I get destructive.
post #5 of 11 (permalink) Old 08-02-2019, 11:02 AM
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cursed valve stem.... try a unfolded paper clip. my guess is you will need to replace the stem no matter what.


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post #6 of 11 (permalink) Old 08-02-2019, 04:08 PM
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If it's a threaded valve stem, can you loosen, the nut and maybe wiggle it enough to get a leak happening? Once you get it that far you shoudl be able to use a c-clamp to break the bead and pinch the tire at the stem. You should be able to attack it from the inside then.


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post #7 of 11 (permalink) Old 08-02-2019, 04:17 PM
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Quote:
Originally Posted by Harkon View Post
If it's a threaded valve stem, can you loosen, the nut and maybe wiggle it enough to get a leak happening? Once you get it that far you shoudl be able to use a c-clamp to break the bead and pinch the tire at the stem. You should be able to attack it from the inside then.

^^^^^^^^^This^^^^^^^^^^^^^


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post #8 of 11 (permalink) Old 08-02-2019, 09:31 PM Thread Starter
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Maybe, I have thought about that but the nut is on the inside and i did put thread locker on it . And I did tighten it enough so I wouldn't worry about it coming loose, ever. And if it breaks I will be dead in the water until I get to order one. I plan on ordering Monday if I can't unplug it this weekend.
post #9 of 11 (permalink) Old 08-02-2019, 10:00 PM
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Quote:
Originally Posted by [email protected] View Post
Maybe, I have thought about that but the nut is on the inside and i did put thread locker on it . And I did tighten it enough so I wouldn't worry about it coming loose, ever. And if it breaks I will be dead in the water until I get to order one. I plan on ordering Monday if I can't unplug it this weekend.
You just have a answer for everything, don't you ... LOL


It does sound like having a spare is a good idea. You've done a great job making sure it never leaks ... EVER! Best of luck brother. Post back with your final solution.


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post #10 of 11 (permalink) Old 08-02-2019, 10:22 PM Thread Starter
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I wish I had a answer. I will post when I get it figured out. You can see the red loctite and the white 3M stuff. I'm thinking some of the white 3M 5200FS got peeled off when the tire was mounted. If that's what it is I should be able to push it out if I can get a paperclip bent just right to get it thru the tight 90* valve stem.
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