Valve inaccessible. Slipped tube?

[frogpond]

The valve stem on one of my rear tires has assumed a really awkward position: pointing at the rim so tightly that I can't even get the cap off, let alone check the pressure or add air. The tractor is a Kubota bx25d with industrial tires. A couple of years ago, I ran over a stray piece of pointy steel scrap. The local Les Schwab (a trustworthy NW regional tire chain) sent out their farm service truck, and ended up putting a tube in, then refilling with rimguard (beet juice).
Since then, at some unknown point, something slipped. I'd like to get this fixed, rather than wait for the valve stem to break off, or pressure to get really low. I could remove the tire and take it down to the shop.
Any suggestions on how it should be fixed?

 

[shovelmike]

If you jack the tractor up to get the weight off, position the valve at 12 o clock, and let all the air out you may be able to reposition the valve stem. If that doesn't work it may be that the weight of the best juice won't let it shift, in which case you will need to take it to the tire shop.

 

[oosik]

+2. What shovelmike says.

 

[ericm979]

The tire rotated on the rim, pulling the tube with it.

A lot of times the tube sticks to the tire. Chances are it will be hard to move the tube even without the Rimguard. Probably the only way to fix it is to remount the tire. If you have to do that, I'd get a new tire that can be run tubeless, if the old one can't be patched.

 

[frogpond]

Thanks for the suggestions! It seems like I might as well at least try jacking it up, letting the air out. ( that's if I can get the cap off, or break the cap off). If it doesn't work, I can still take it to the shop. I hope to avoid the expense of a new tire.

 

[ch1ch2]

With the air out and the tire off the ground, you should be able to rotate the tire until the tube realigns itself in the tire.

It should be very easy. Just my experience.

 

[CobyRupert]

With the air out and the tire off the ground, you should be able to rotate the tire until the tube realigns itself in the tire.

It should be very easy. Just my experience.

Serious? Sarcasm?
I've tried to do this with a ~1" wide bicycle tube that had an angled valve stem.
Didn't work. Rubber doesn't slide well. Your results may vary.
Bike does have a rubber inner liner...but tiny compared to a tractor tube.
I've 1/2 wondered if sucking the air out of it would get some of the tube away from the rubber tire surface and you're only trying to rotate what is in contact with metal rim?

 

[Ford850]

With the air out and the tire off the ground, you should be able to rotate the tire until the tube realigns itself in the tire.

It should be very easy. Just my experience.

I've done this too on smaller tractor tires. Fortunately, the reason the tire spins and causes the problem also makes it easy to correct (tire slips easily on rim).

 

[ch1ch2]

Serious? Sarcasm?
I've tried to do this with a ~1" wide bicycle tube that had an angled valve stem.
Didn't work. Rubber doesn't slide well. Your results may vary.
Bike does have a rubber inner liner...but tiny compared to a tractor tube.
I've 1/2 wondered if sucking the air out of it would get some of the tube away from the rubber tire surface and you're only trying to rotate what is in contact with metal rim?

He said it had ballast in the tube.
The weight of the ballast will move the tube in the tire.

Bicycle it totally different. you have to spin the tire on the rim on a bicycle.

 

[Industrial Toys]

That is an immense amount of weight causing friction tube/against tire. I don't know. But I would HIGHLY doubt the tube moves within the tire. Sometimes I forget though, what size tire is being talked about.

Possibly, the tube was folded over or twisted when installed. I usually inflate and deflate a tube several times to hopefully have it properly deployed within the tire. Many valves actually are not even at the right angle for the rim since rims have various steps and valve positions.

 

[Ford850]

One time I had to brake the opposite tire and nudge the misaligned tube tire by gently lurching the clutch a few times. It spun the rim while the tire and tube stayed put. Keep in mind we're only talking about a couple inches of rotation.

 

[ch1ch2]

That is an immense amount of weight causing friction tube/against tire. I don't know. But I would HIGHLY doubt the tube moves within the tire. Sometimes I forget though, what size tire is being talked about.

Possibly, the tube was folded over or twisted when installed. I usually inflate and deflate a tube several times to hopefully have it properly deployed within the tire. Many valves actually are not even at the right angle for the rim since rims have various steps and valve positions.

Some people are "too smart to learn" They already know it all.

 

[Industrial Toys]

The only tires generally that spin on the rim is very low pressure tires. I have spent enough of my life breaking beads to know "MOST" don't simply spin on the rim when jacked up. It's the whole design purpose of bead and rim.

 

[ch1ch2]

Thank you that is my point the tire does not move the tube does.

 

[Ford850]

On mine, the tire did spin too. Heavy walled tires, low pressure, allowed them to spin and pull the tube which 'cocked' the stem. I just reversed the process. I've also fought enough other tires to get the beads broken free when replacing tires, so I know what you mean about how they shouldn't spin.

 

[ch1ch2]

I have had many motorcycle tires move on the rim due to low air pressure. We used a rim lock or a bead lock to prevent it from happening.

On my IH584 I had a tube with ballast in it. If the tire was low the tube would walk inside the tire. I fought it for a few years until I quit using ballast in that tire/tube. I just put a different tire rim on with tubeless tire.

 

[Industrial Toys]

I think the RIM GUARD is the game changer that takes it from a home repair attempt, to otherwise. Take it off (saving a service call) and take it in.

I learned they make "Forestry" Tubes with heavier valve asemblies I guess to keep the valves from getting torn off.

 

[frogpond]

I haven't had a chance to try moving it yet, due to busy schedule. I'll certainly let everyone know what happens.

 

[ch1ch2]

I haven't had a chance to try moving it yet, due to busy schedule. I'll certainly let everyone know what happens.

We certainly understand that.

 

[frogpond]

Well, I finally fixed it. And many thanks to shovelmike and ch1ch2 for your good advice. I raised it off the ground, positioned the valve at 12 o'clock, took the cap off with pliers, and pried the valve back into proper position with a moderately big screwdriver. Then I added air, and let the tractor down. I don't think I moved the tube much.