Valve Stem Protection Idea and Advice...

[k0ua]

If you have some time go look at that after accident report. it is really chilling. it is called tire pyroalysis. the tire releases explosive gases inside and creates heat, it is some kind of thermal runaway thing. It has killed quite a few people. I have heard of one, that killed 2 guys. even with the bead unseated it started and made enough gas quick enough to reseat the bead by itself and blow up .
James K0UA

 

[TripleR]

Very interesting thread as I have already knocked the valve stem off one of the front tires of the M8540, our GL5030 has protective tabs welded over the stems; kind of disappointed that wasn't carried over to the M Series.

 

[JoeL4330]

Off roaders face this issue and have come up with alternate ways of dealing with it ...you can google appropriately ... or, here are two links with their advertising blurbs:


Surevalve (TM) The Valve Stem / Tire Valve For Off Road Use "The Surevalve has a subriminal valve core for maximum protection for your extreme off-road adventures. The outer valve stem is double sealed to prevent air, dirt, and water from penetrating and corroding the valve core. The valve stem is the weak link in the tire and rim assembly. When participating in extreme off-road activities you are at a great risk of severing your valve stem. The last thing that you want when you're in a mud hole is to get a flat tire due to a broken valve stem.
Amazon.com: Flush Mount Chrome Valve Stem System (Set of 4): Automotive "The new Flush Mount chrome valve stems are the perfect way to set your new wheels off. Unlike most valve stems that are very tall tall and stick out, these "Flush Mount" valve stems give a clean smooth look to your new wheels. These are perfect for use with highly polished wheels to smooth out the look of that ugly valve stem. They work on almost all aftermarket and factory wheels that require normal valve stems.

"With this unique design you only need one valve stem to air up your tires. To air up your tires simply unscrew the cap and screw in the valve stem. Then apply air like normal. When you are done simply unscrew the valve stem and screw in the flat cap for the ultimate look.
BUT, A READER ADDS: yeah those are nice until they start to leak at the grommet like any metal stem does eventually and you have to dismount the tire to fix it. They are also slow to air down through the "detachable stem" and take longer to air up when done. Also if you happen to lose the "detachable stem" you're screwed untill you get a new one.

 

[woodchuckie]

I had the pipe welded on mine and screw the cap on. It works great. The best mod I've done on my tractor. We welded one wheel without taking the valve stem out. Just took the valve core out. It only takes two little tacks with the welding for it to stay. It didn't even melt the stem. The pipe won't hold water if it's not welded all the way round.

 

[TripleR]

I had the pipe welded on mine and screw the cap on. It works great. The best mod I've done on my tractor. We welded one wheel without taking the valve stem out. Just took the valve core out. It only takes two little tacks with the welding for it to stay. It didn't even melt the stem. The pipe won't hold water if it's not welded all the way round.

Do you have any pictures?

 

[jonyyuma]

If you have some time go look at that after accident report. it is really chilling. it is called tire pyroalysis. the tire releases explosive gases inside and creates heat, it is some kind of thermal runaway thing. It has killed quite a few people. I have heard of one, that killed 2 guys. even with the bead unseated it started and made enough gas quick enough to reseat the bead by itself and blow up .
James K0UA

Thanks for the warning, the video sent a chill up my spine. I used to mount the old pieced military truck wheels by hand. They can blowup anytime the safety ring slips. But to see results of combustion inside a wheel and tire. Awesome. I could not see the pdf file.But , I did learn something different today. Jy.

 

[KennyV]

You wont ruin your rims by welding on them but you will ruin your life if you dont dismount and take off the tire. Even breaking the bead may not be enough they can reseat by themselves instantly and killing you.
James K0UA

Hello James...
Anyone that has the skills to operate a welder, BUT is lacking the "don't weld a pressurized vessel", is really not needing a warning 'don't do it...'.

If such a person is out there, and they go through life making irresponsible choices, all you are doing is postponing the time they finally make their last careless blunder.

I do not encounter very many folks that fall into that group... especially that can also afford welding equipment and a rim with a tire on it to weld...

There are accidents all the time... Some involving people that have grown accustomed to being warned about the most obvious risks... then when there is no one around to warn them... boom an accident 'happens' ...
That could have been prevented by allowing that person to self destruct during one of their earlier misadventures, there is some natural selection that you need to allow, least the herd looses all common scenes...KennyV

 

[crazyal]

Off roaders face this issue and have come up with alternate ways of dealing with it ...you can google appropriately ... or, here are two links with their advertising blurbs:


Surevalve (TM) The Valve Stem / Tire Valve For Off Road Use "The Surevalve has a subriminal valve core for maximum protection for your extreme off-road adventures. The outer valve stem is double sealed to prevent air, dirt, and water from penetrating and corroding the valve core. The valve stem is the weak link in the tire and rim assembly. When participating in extreme off-road activities you are at a great risk of severing your valve stem. The last thing that you want when you're in a mud hole is to get a flat tire due to a broken valve stem.
Amazon.com: Flush Mount Chrome Valve Stem System (Set of 4): Automotive "The new Flush Mount chrome valve stems are the perfect way to set your new wheels off. Unlike most valve stems that are very tall tall and stick out, these "Flush Mount" valve stems give a clean smooth look to your new wheels. These are perfect for use with highly polished wheels to smooth out the look of that ugly valve stem. They work on almost all aftermarket and factory wheels that require normal valve stems.

"With this unique design you only need one valve stem to air up your tires. To air up your tires simply unscrew the cap and screw in the valve stem. Then apply air like normal. When you are done simply unscrew the valve stem and screw in the flat cap for the ultimate look.
BUT, A READER ADDS: yeah those are nice until they start to leak at the grommet like any metal stem does eventually and you have to dismount the tire to fix it. They are also slow to air down through the "detachable stem" and take longer to air up when done. Also if you happen to lose the "detachable stem" you're screwed untill you get a new one.

I like those flush mount stems but I could see the removable part getting lost. They should include a new tire chuck that doesn't require that stem or 4 stems so you have lots of spares. It would really suck if you had the stem in your tool box at home while you needed to put air in your tire while at your land 100s of miles away.

 

[JoeL4330]

probably could find a way to attach it to your compressor hose/chuck, but that's a good point

 

[Dead Horse]

I have been around this stuff most of my life. I have enough common sense to not weld a rim with a tire mounted, but I was completely unaware of the pyroalasys thing.

Learn something every day, if you keep your ears and eyes open...........