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-   -   Never again unmount a tire to replace a valve stem. (http://www.jeepforum.com/forum/f15/never-again-unmount-tire-replace-valve-stem-1828522/)

AntiPrius 11-25-2013 06:28 PM

Never again unmount a tire to replace a valve stem.
 
A little while back I noticed my left rear tire in the Jeep going flat when I left for work in my daily driver. So when the weekend came I got out my air compressor and filled the tire back up, but when I started to undo the air line I could hear air leaking. As it turns out, my rubber valve stem car cracked. I checked the other three and they too were cracked, but not leaking yet.

I figured there had to be a way to replace the valve stems without having to take the Jeep to a tire store and have all the tires unmounted, new valves installed and everything re-balanced.

I came across this nifty tool, bought it, and it works. I replaced all 4 valves in my driveway. It'd be really great if you tear a valve stem off road. It was about $30, and well worth it. It's pretty simple to use, just screw a new valve into the piece with the red handle and lube the stem, I used Vaseline (hey if it works for...well anyway), but probably many other things could be used, even some motor oil in a pinch, line the cone shaped black piece up to the hole in the wheel, then slam the valve though the cone shaped piece until it goes through the wheel. Then pull the valve back out until it seats in the wheel, then unscrew the tool. You're done. The valve removal tool is a POS and broke on my first attempt to use it, but that was the least of my worries, as the rest of the valve that wouldn't come out of the wheel on 3 of the 4 wheels is just down inside the tire, it makes no noise so I don't care.

http://i87.photobucket.com/albums/k1...ps96f39408.jpg

This video shows how it works.


I bought it here, if anyone is interested in it.

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

CharlieHo 11-25-2013 07:04 PM

Neat tool.

Google videos on Youtoobz for breaking down tires without going to the shop, though. I generally bust my tires down with two 2x4s at the house, even though I have a tire machine at the shop.

I'm surprised your stems dry rotted, whoever installed your tires should have installed new stems at the same time. I've never heard of anyone charging for them since they're ripped out anyway, at least that's the way I've always done it.

AntiPrius 11-25-2013 07:26 PM

Quote:

Originally Posted by CharlieHo (Post 18015458)
Neat tool.

Google videos on Youtoobz for breaking down tires without going to the shop, though. I generally bust my tires down with two 2x4s at the house, even though I have a tire machine at the shop.

I'm surprised your stems dry rotted, whoever installed your tires should have installed new stems at the same time. I've never heard of anyone charging for them since they're ripped out anyway, at least that's the way I've always done it.


I bought my Jeep about 5.5 years ago, and it had brand new tires at the time. Since it's not my DD, I'm still on the same tires (until early next year when I'm going to replace the wheels and tires both) and they have about 18k miles on them, so I'd guess the stems are no older than 5.5 years or so, and I found it odd too, but then again, stems from China didn't exist when I first started driving. I'm guessing that's the culprit. They looked fine when I bought it, and for years afterwards.

This tool is so easy though, I can't imagine using any other method, especially "out in the field", when a valve fails or is damaged.

CharlieHo 11-25-2013 07:39 PM

Out in the field would definitely handy. Just a few months ago, a friend ripped a stem. We jammed a stick into it and wrapped it with miner's tape until we got to the trailhead.

Would have been nice to fix it on the spot.

NashvilleTJ 11-25-2013 09:20 PM

Great info AntiPrius. I had a valve stem fail on one of my trailer tires a few months ago, and spent a rediculous amout of time unseating the tire and then sneaking the new stem in. This tool would have been worth its weight in gold that day. I may pick one up just for the piece of mind.

Thanks again for the idea.

Jeff

Edit: $24 bucks on Amazon. Free shipping if you happen to have Amazon Prime.

goodwrenchdave 11-25-2013 09:25 PM

hate having to be so negative but I would really need to see this at work (live)....seems like you would need a lot of pressure to compress the "butt" on a valve stem to fit through the little hole. More than what I'm seeing in the videos anyways. It is very dense rubber and feels hard to compress. even the valve removal part is full of :shhh:. with channel locks you need to really tug on stem, to rip it out. They miraculously just push valve sideways and stick in a coathanger looking hook (how???) and out it comes??
And BTW....NOBODY unmounts a tire to replace a valve stem. The bead is separated on front side and pushed down, slice the old one to remove and new valve is inserted. no balancing necessary unless the "size/type" is changed.
but if it works, I can see how this could be useful on trail.

JEK3 11-25-2013 09:25 PM

Also perfect if you decide to drop in a load of balancing beads or airsoft pellets.

AntiPrius 11-25-2013 10:01 PM

Quote:

Originally Posted by goodwrenchdave (Post 18020058)
hate having to be so negative but I would really need to see this at work (live)....seems like you would need a lot of pressure to compress the "butt" on a valve stem to fit through the little hole. More than what I'm seeing in the videos anyways. It is very dense rubber and feels hard to compress. even the valve removal part is full of :shhh:. with channel locks you need to really tug on stem, to rip it out. They miraculously just push valve sideways and stick in a coathanger looking hook (how???) and out it comes??
And BTW....NOBODY unmounts a tire to replace a valve stem. The bead is separated on front side and pushed down, slice the old one to remove and new valve is inserted. no balancing necessary unless the "size/type" is changed.
but if it works, I can see how this could be useful on trail.

Suit yourself. I have it, and replaced 4 valves in my driveway, and it's now in my air compressor bag. I wasn't just showing what someone claimed, I gave first hand experience.

Knuckelhead 11-25-2013 10:07 PM

Quote:

Originally Posted by goodwrenchdave (Post 18020058)
And BTW....NOBODY unmounts a tire to replace a valve stem. The bead is separated on front side and pushed down, slice the old one to remove and new valve is inserted. no balancing necessary unless the "size/type" is changed.

Did you mean the outside of the rim and pushed in?.

Quote:

Originally Posted by AntiPrius (Post 18020906)
Suit yourself. I have it, and replaced 4 valves in my driveway, and it's now in my air compressor bag. I wasn't just showing what someone claimed, I gave first hand experience.

Thank you for your input... :thumbsup:

my996duc1 11-25-2013 10:09 PM

That is pretty cool !!

I carry a spare tire that I could swap on but this would be even quicker and easier than changing the tire.


_

geroux 11-25-2013 10:15 PM

Quote:

Originally Posted by AntiPrius (Post 18014122)
and lube the stem, I used Vaseline (hey if it works for...well anyway), but probably many other things could be used, even some motor oil in a pinch

My only concern is using a petroleum based lubricant with rubber. That's how babies are born:laugh:

jeff_in_rc 11-26-2013 09:39 AM

A guy in our club has one that uses air pressure to do the same thing, both are worth every penney in my book.


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