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Discussion Forum

Wheel Air Valve Problem

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Tom Clayton

05-06-2003 19:46:31

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I got a problem with the air valve on the rear tire of my D14 today. It will be hard to explain but it got loose. There is a round nut on it that should tighten it, but the whole thing can drop out about a half an inch until something on the inside stops it from coming out all the way. Now it just wiggles around and won't tighten.

When it started getting loose and leaking I put blocks under the axle to take pressure off the tire and the valve was near the top so I didn't lose much water. But now I can't move the tractor (it's in the barn luckily) until I get this valve tight again. Does it have a rubber seal? The remains of what looked like a seal came off. How is the air valve installed, it doesn't seem to be like a car tire valve? Where can I get one?

any help or suggestions welcome. PS, I can't take the other one off to look at it because it is on the bottom and would leak all the water out.

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Tom Clayton

05-07-2003 06:42:52

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 Re: Wheel Air Valve Problem in reply to Tom Clayton, 05-06-2003 19:46:31  

Thanks Eldon and Chris,
I think it must be the tube coming apart. I'll try to get a picture today of the valve hanging out. It does sound like I will have to take the tire to a shop to have a tube put in.

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05-06-2003 22:17:19

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 Re: Wheel Air Valve Problem in reply to Tom Clayton, 05-06-2003 19:46:31  

On inner tubes made to be filled with fluid, there is a small end (that holds the air valve) that can be unscrewed from the valve stem. This is so that an adapter can be screwed on in its place to fill the tire with fluid. Then the air valve is replaced and the tire is aired up. Check with a tire dealer that sells tractor tires...they should have a replacement (small end) that fits. I've seen a couple of different styles so it would be best if you had an old one to compare the new ones to. Jack up the good side and rotate the stem to the top. Then you can remove it without loosing any fluid. If the main part of the valve stem is corroded away it is probably time for new tubes.

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05-06-2003 20:42:42

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 Re: Wheel Air Valve Problem in reply to Tom Clayton, 05-06-2003 19:46:31  
Sounds like you have had a tube come apart. The valve stem of the tube is held to the rim with a round nut. It just serves to hold the stem thru the wheel. It does not provide part of the sealing. If you have fluid leaking out around the stem, your tube is punctured. Is the rim corroded around the stem? That could account for the movement of the stem in the nut. That water is probably calcium chloride. Quite corrosive so you will want to clean it up where ever it has gotten. Inside and outside the wheel. There is a slight possibility that the tire is tubeless. In that case the stem is a bolt that has a seal around it. No likely on a tractor of this age or one running fluid in the tires. In any case it must be repaired with the tire off the rim. You can take the entire wheel and tire to a shop to have it repaired or a lot of shops have a mobile service too.

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