Go BottomSolid filled front tires To many flat front tires
 | JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY 
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2005-03-04 107269
10 hours on my new B7800. Right front tire off for second time to be re-aired. First time turning on concrete drive with bucket loaded and tire went down. Today climbing rock while turning and tire seperates at rim again. Had same problem one time with BX last year which cut the side of the tire before I noticed. Had to take it to man that rebuilds tires. He fixed it for $25 and it was fine. He also fills tires with a substance that hardens and makes a solid tire. Used mostly on highway tractor trailer tires. I'm tired of taking tires in for repair. It's probably close to $80 per tire to have this filled solid done. Has anyone ever done this with front tractor tires? Logical and school educated opinions ok but I would really like to hear from some one with actual experience with this. Remember, I'm after opinions on solid filled front tires. Right or wrong I keep getting flats and will probably continue to do so for whatever reason. Solid filled front tires. Thanks.
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 | DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada 
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2005-03-04 107276
Are we talking R-4's here?
I get the impression that they are just torquing themselves off the bead. Is that assumption correct?
If so, maybe putting in an inner tube would solve the problem..... Or making a warranty claim for defective tires?
Kubota is having problems keeping air pressure in one type of tires on the RTV 900 due to a bad bead design. Maybe this is related. ....
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 | brokenarrow
Join Date: Jan 2004 Posts: 1288 Wisconsin 
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2005-03-04 107280
Loader on the front end? Looks like you mow you houses yard with this tractor. Hmmm
My un educated response would be "NO" I believe you will not like what it will do to your grass. ....
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 | plots1
Join Date: Jul 2003 Posts: 563 mo 
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2005-03-04 107281
Yep, it will tear the ground up more, but it does aid in front traction if your doing things where that's needed as it adds a bit of weight to each tire. when I had my 790 I had the fronts foam filled and it really help that light weight torky unit out when using a box blade to tear sod from a field. plus flat tires problem was gone for good. ....
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| notamustang
Join Date: Feb 2005 Posts: 2 So Cal
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2005-03-05 107310
Well if its not a bad bead on the rim via damage or design I would check to see if your running your pressure is where it needs to be. If you have a slow leak and you are stressing a tire that is low on pressure you will pop them right off the bead with out any problem.
Maybe a set of fronts for mowing and a set for everything else.
I dont know if you have a air source but if you blow a bead you can use a ratchet strap and some coaxing to fill the tire yourself. Just my 2 cents and good luck ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-05 107324
Thanks for replies. I did further research on internet concerning foam filled tires and it seems to be the solution for skid steers and other construction equipment which commonly have the same flats on front tires problem.
Also talked to a tractor dealer here today and he said "yep, that's the solution with no problem and no hesitating to make the recommendation".
Also other info sites say makes ride rougher but seems there are different amounts or mixtures when installed to aid with this.
Think now I will go with a inner tube to see if that solves the problem due to high cost of foam filling and if not then foam them. ....
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| hardwood
Join Date: Dec 2002 Posts: 3583 iowa
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2005-03-05 107326
I've never been around foam filled tires. Does the foam turn into a solid or semi solid material once it's in the tire? When the foam filled tire does wear out is the foam a problem for removal from the rim? Frank. ....
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| plots1
Join Date: Jul 2003 Posts: 563 mo
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2005-03-05 107327
Yes it does turn semi solid,the newer style they used in my 790 gave the tire a bit more of a spongy feel, the man told me the older stuff was like riding on a rock.It really didn't feel like a bad ride when it was in there.( most tractors don't produce the most plush any way.) Tire has to be cut from rim when wore out, he also said that was easy to do also. It was pretty costly to have done though. ....
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| denwood
Join Date: Jul 2004 Posts: 542 Quarryville PA
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2005-03-05 107329
Arnco makes a soft fill that they claim rides just like air. It kind of has a jell like feeling. It can even be recycled and ground up, mixed with new and reused. It is a little cheaper to use recycled but not much. It does the rims no harm. ....
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| Hettric
Join Date: Mar 2004 Posts: 133 MA
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2005-03-06 107356
I have done the fronts on my JD755. I do have limited time on them, but didn't notice any drawbacks, love the extra weight and no flats. I want to do the rears also, but cost is holding me back for now. BTW JD recomends the fronts be done in thier loader manual, go for it. ....
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| plots1
Join Date: Jul 2003 Posts: 563 mo
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2005-03-06 107360
I didn't know JD recommened the fronts be done for loader work, but did hear of adding weight to rears for ballast.In fact my says to add weight to tires as well as on the 3 point to achieve correct ballast for loader work. ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-06 107368
New direction: Same tire flat 2 times in 10 hours on new tractor. Going to ask my dealer to give me a new tire and rim and ask him to do the same with Kubota. May be defect in tire or rim as has been suggested.
Thanks for replies. Glad to hear of softer mix for ride since what I had read on some other sites that was/is the down side. Saw these foam filled/solidified tires last year and they sound/look like the answer, especially for front tires that have flat problems. The tires I saw were tractor trailer tire treads that had wore completely off down to the solidified inside. A man brought a JD front tire with good tread in to be patched while I was there. It was his 12th time in a couple of years. He kept getting thorns through the tire. Believe I would have finally given up and had them solidified but he didn't. Guess you always hope this is the last time. Forgot to tell before, my tires are Ind tires which I guess is the same as R4's. ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-07 107457
Took tire to dealer today. He called Kubota and they are to supply another tire. Said they had no reports of problems with rims on these tractors. If the next tire goes flat then I'll know it's that one bad rim that got sent out. ....
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 | earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2005-03-07 107465
I have my doubts that Highway Truck tires are true "foam-filled" for reasons such as dynamic balancing, tire replacement, and ride quality. Most likely it is a water-based, liquidy, slightly chunky product like Slime. The stuff around here for OTR trucks is pink-colored and hand-pumped from a 5-gallon bucket or drum. It doesn't work well for clean punctures of any size. And it degrades as soon as it freezes. Repair shops will send you down the road if they se any evidence of becuase it makes a sticky mess when the tire is dismounted. Slime works very well--I use over a gallon and half in each of my equipment tires. There is certain limit of putting too much Slime in. Results in an underinflated tire (not enough air volume it it). This is strictly referred to as as a sealant, not foam filling.
On Off-Road Equipment only: Foam filled tires around here requires the wheel/tire to be removed from the vehicle, the tire stem valve removed and then a urethane foam is pumped in under pressure. Then the tire is laid on its back for about a day or so for it to cure evenly. And yes the tire has to be cut from the rim later or buy a new tire and rim as the labor for cutting is about the same. ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-08 107523
Not sure what your saying. You say you doubt truck tires are truly foam filled then at the end you tell how they are foam filled there. They are truly foam filled just as you described at the end of your response. They do have to be cut off. The man that does it says he has done it for years and is still doing it. He has been in the recapping and truck tire business for over 35 years. I saw them myself. ....
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada
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2005-03-08 107525
We had a salesman in to pitch us the foam filling for our tires, it is of little use to use since we don't have a poblem with flats.
He did say however that the foam filling could not be used on tires that ran over 35 mph, other than for a VERY short period of time. The foam acts as an insulant, running above 35 mph creates enough heat from the tire flexing that if not dissipated the tire will explode, the foam holds the heat against the tread of the tire and it fails in no time.
He did say however, that a number of the timber & mining companies were buying it for that exact reason. The tote roads are all narrow, twisty & dangerous, and keeping the employees below 35 mph is a constant problem. Foam filling keeps the drivers honest, if the tire shreds it means they were driving too fast.
Best of luck. ....
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| earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2005-03-08 107527
JOHNTHOMAS: I re-read my post and made some clarifications: The Slime or the pink stuff is a "sealant" not "foam filling".
Foam filling is for Off-road use or like the other post said for low speeds (I can't imagine that if a Motor Carrier Enforcement/Weighmaster/DOT officer found out that it would be legal--I don't know for sure.) ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-12 107855
Kubota dealer provided new tire. Have used it for a couple of hours lifting and spreading gravel. Doing fine so far. This B7800 is great for this type of work. The BX2200 I had would have done it but not as easily or as quick.
My neighbor has watched my BX for a year and went and got one. He just mows so I recommended the BX and he got the BX18Hp model. He was spreading seed with a hand spreader and I told him he could get a big one for his tractor 3pth for a little over $300 so I'm taking bets he'll have one on it within 2 weeks. ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-20 108353
Have put several more hours of heavy loader work on the B7800 with Kubota provided new tire and no problems. Guess it was a defective tire to start with. Guess this just proves to start with the simple fix first. Still love this tractor. ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-20 108354
DRANKIN: First response to my original post was right on with the warranty claim. Experience, psychic, smart (Ky for intelligent)? Thanks. ....
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| DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada
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2005-03-20 108359
Glad it worked out. ....
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| cekramer
Join Date: Aug 2004 Posts: 20 cave junction, or
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2005-03-24 108663
Following discussion on foam filled tires, found a dealer near Medford, Or that uses Carpenter foam ( TF 23 a&b). On my 4310 with 25-8.5-14 it takes ~85 lbs. per tire. Estimate of $1.25 per lbs. Pick up Fri and will post results/experience. ....
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| denwood
Join Date: Jul 2004 Posts: 542 Quarryville PA
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2005-03-24 108680
I am currently weighing options for a finish mower caster wheel that went flat, 4.10/3.5-4.00. A new tube is $6 tire $13, solid tire on the wrong rim $20. Neither is worth the effort. Foam more than that because of labor and transportation. I have run it for about a year with no air just flopping on the rim. Going forward is OK, backing squishes it and makes it cut too close. I have been wondering what I could use myself to make it work. I am considering 100% silicon caulk but wonder about cure time in a tire being looong. It should only take 6 or so tubes at $3 each. I may cut it with some sort of fill (like stone does in concrete). Any ideas? ....
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| JOHN THOMAS
Join Date: Dec 2004 Posts: 61 SOMERSET, KY
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2005-03-24 108690
denwood: Looks like the $6.00 tube is the cheapest. Good luck finding something cheaper than that. ....
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| denwood
Join Date: Jul 2004 Posts: 542 Quarryville PA
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2005-03-24 108695
Cheap is rarely the way to go, and the $6 is the least of the costs if I put it back that way. My time, frustration and the blood vessel that will break when it pops the first time I use it are the real costs. I want to never have to think about that tire again, the other 3 will have their day later. I don't mind trying something new and having it fail, I just can't stand putting it back the looser way that it never should have been in the first place. Solid tires are so much better for this use. ....
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