Checking airpressure in WATER FILLED tires.

[ClemBert]

When I check the air pressure with a normal pressure gauge water always comes out. The tires are rotated in the position where the valve stems are at their highest point. Do I need a special device to check air pressure in a water filled tire? Or is a special device only needed when adding water to a tire? The max pressure on the label is 26 PSI and I assume for water filled tired that the maximum should be put in. Is that true?

 

[lynrob]

If your valve stems are at their highest point and you are still getting water out, then it sounds to me like your tires are completely full of water which is a bad thing. Your tires should not be solid water. Water is incompressible so you need some air in the tires to act a a shock absorber when you go over bumps. When the tire is deformed as you go over bumps, the air inside is compressed and allows the tire to change shape slightly without putting undue pressure on the tire. Otherwise, the tire is like a hydraulic system and the fluid transfers all of the energy produced when hitting a bump directly to the tire. If the jolt is hard enough it could burst the tire. I think my manual recommends a max of 75% fluid fill.

Maybe if you have inner tubes that might change things I don't have experience with that, but my guess is that you might have too much water in the tires.

 

[jester156]

you will need a pressure gauge that can test tires with liquid in them, the straight air ones will not read with liquid in the tires, I also think it keeps any liquid in the tires from coming out. I have mine filled with rimguard but I havent purchased a guage yet for checking, its on my list though

 

[sweettractors]

We occasionally vary tire pressures to accommodate certain jobs and implements. Ken Sweet

 

[SARG]

you will need a pressure gauge that can test tires with liquid in them, the straight air ones will not read with liquid in the tires, I also think it keeps any liquid in the tires from coming out. I have mine filled with rimguard but I havent purchased a guage yet for checking, its on my list though

From what I can find the standard stick gauge will work fine. They don't use a dial or a digital unit because the moisture will get inside the dial window.

 

[Bird]

A straight air gauge will work, but probably won't last long before corroding and no longer work. The air/liquid gauges cost little, if any, more than a straight air gauge. But as has already been mentioned, you don't want the tires filled more than 75% with water. However, even if properly filled, and the stem at the 12 o'clock position, there's likely to be a little water in the stem itself that could account for you seeing water when you check the pressure. Personally, I always checked mine at the shop where I had an air hose handy. So I'd stop with the stem at 12 o'clock, give it just one very quick blast of air to clear the stem, then use the tire gauge.

And no, you don't necessarily want the tires aired to the max. Use the same pressure you would use if you had nothing but air in the tires. In other words the pressure that results in a full footprint. You'd like the entire tread, side to side, to contact the ground.

 

[SandburRanch]

A full solid stream of water coming out and a mist of water lasting a few seconds are two different things to consider. A full solid stream may mean there has been too much water added. This is more likely to happen if the tire was laid down and the bead broken to add liquid than if it was added through the stem at 12:00.

Just a mist? This can be attributed to dew point temperature. To the best of my knowlege the air in the tire is always at 100 percent relative humidity.

 

[adjusterr]

If I suspect there is too much liquid in my JD 1010 tires, what is the best way to determine? I'm considering moving the valve to about 12 noon position and check for water. If I find water,let it expel then slowly roll forward until the valve is at approx 2:00 position and hold that position until the water stops, then place valve back to 12 noon and fill with air. Does this sound workable?

 

[SandburRanch]

If I suspect there is too much liquid in my JD 1010 tires, what is the best way to determine? I'm considering moving the valve to about 12 noon position and check for water. If I find water,let it expel then slowly roll forward until the valve is at approx 2:00 position and hold that position until the water stops, then place valve back to 12 noon and fill with air. Does this sound workable?

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Sounds workable to me if you jack the wheel up and remove the schrader valve.

 

[Zebrafive]

It's my understanding the pencil style guages made for air/liquid are spring loaded to expell any liquid when removed from the valve stem. So you have to read the pressure while the guage is on the valve stem.