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Foam filling tires??


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#1 wvbuzzmaster OFFLINE  

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Posted January 24, 2012 - 11:22 PM

Ok, here is the scenario. I have two 4 bolt rims for 4.80-8 tires that are rusty, especially around the valve stem. I have two 4.80-8 tires mounted on good 5 lug rims... but I need them on 4 lug rims. I need them for the tow dolly project and got to thinking mabey there is a way to get the good tires mounted on the 4 lug wheels and fill the with foam instead of air. First problem is seating the bead, but more importantly, what do I do for foam fill?? My thinking was the tow dolly would be really great with foam filled tires since then I am assured that the tires are never flat when I need the dolly. Any suggestions??

#2 HALFSCALE ONLINE  

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Posted January 25, 2012 - 12:24 AM

To fill with foam they have to be able to hold air for a little while, they fill and then as the foam is coming up in tire , they drill a hole in the tread area to let air out. The ride is terrible but they get heavy.
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#3 Gtractor OFFLINE  

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Posted January 25, 2012 - 12:32 AM

You could buy brand new 4 lug rims cheaper than foam filling the tires.
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#4 Alc ONLINE  

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Posted January 25, 2012 - 06:29 AM

For years I had a little garden cart with tube tires , only had to add air maybe once a season they finaly split so bad the tubes started showing , brought 2 new tubless and after a few months of having to air them up all the time I just put new tubes in them and ended that problem , Al
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#5 olcowhand ONLINE  

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Posted January 25, 2012 - 10:19 AM

You could buy brand new 4 lug rims cheaper than foam filling the tires.


VERY TRUE! And that stuff is heavy as lead! My brother took some foam filled off the front of his Kawasaki Mule, and I couldn't believe how heavy they are. They have great tread & he just left them in our scrap pile. They will be redrilled to go onto a GT (they are 4 hole), as they have semi-V tread.
Here's a rep pic:

mudsand.jpg
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#6 wvbuzzmaster OFFLINE  

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Posted January 25, 2012 - 10:35 AM

Thanks guys. Wasn't sure if it could be a cheap alternative or a PITA and now, sounds like a PITA lol.

#7 olcowhand ONLINE  

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Posted January 25, 2012 - 12:16 PM

Thanks guys. Wasn't sure if it could be a cheap alternative or a PITA and now, sounds like a PITA lol.


I wish the common guys could buy the stuff reasonably in a smaller container. In the long run, filling is a good thing IF you want the extra weight. But because of the expense, I'd only foam a brand new tire. The foam can be re-used though, as my cousin runs an interstate mowing company & foams his tires. He cuts a worn out tire off the rim, then uses a long blade to cut the foam into chunks, then tosses the chunks into a new tire, then fills the voids with foam. Cuts his costs way down.

#8 Cvans OFFLINE  

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Posted January 25, 2012 - 12:43 PM

Your cousins mother didn't raise no fool. He's got his hat setting on a good piece of property.

#9 olcowhand ONLINE  

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Posted January 25, 2012 - 12:48 PM

Also, the reason my brother dropped the foam filled tires/rims off the Mule....it goes about 35mph. Hauling it down from speed with all that rotating weight was hard on his brakes. With water it doesn't affect things nearly as much, as the water isn't bonded to the tires & doesn't create so much "flywheel effect".

#10 olcowhand ONLINE  

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Posted January 25, 2012 - 03:24 PM

I rolled one of the foam filled 20x11-10 tires into my bathroom & put it on my balance beam scales, which are very accurate. This assembly weighs right on 120lbs!!!!!!!
DSC00709.jpg Posted Image

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#11 caseguy OFFLINE  

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Posted January 25, 2012 - 06:17 PM

That sounds heavier than the equivalent "liquid" weight that you can add, but I can see that the flywheel effect could be a bad thing at higher speeds. Shouldn't be a problem on your average GT though :laughingteeth:

#12 OldBuzzard ONLINE  

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Posted January 26, 2012 - 02:08 AM

That sounds heavier than the equivalent "liquid" weight that you can add ...


That would be just about the same as Rim Guard.

I just had Rim Guard put into a pair of 20 x 12 x 12 CST Ancla tires. Each tire took 10 gal. That added 110# per tire, as Rim Guard is 11 lb/gal.

#13 tinner OFFLINE  

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Posted January 31, 2012 - 07:08 PM

Tires on my mowing tractor are foam filled because I kept getting flats. Kind of pricey but I love it. When i first got them home I took one out of the truck and dropped it, it bounced just like an air filled tire. Much heavier so I picked up stability when mowing where the creek goes under the road. No more flats.

#14 Texas Deere and Horse OFFLINE  

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Posted January 31, 2012 - 10:09 PM

All of our forklift tires at our plant that are not solid tires are foam filled. It's pretty expensive and very heavy as stated already. I don't think you would ever ware out the tire, once the tire is gone you can keep running on the foam for a good while.

#15 tinner OFFLINE  

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Posted January 31, 2012 - 11:09 PM

If I remember correctly, for a 23x10.5x12 it cost $75 to $80 which is about $1 per pound. Tubes are about $20 each and I ruined three before I had it done by not noticing the tire was going down and the tire spun on the rim and cut the valve stem. If and when I wear these out I'll just get the new ones foamed when I put them on. My mowing tractor tires get a lot more abuse than my garden tractor tires. To do the fronts he gets a flat $25 each. Thinking about the garden tractor front tires to add a little weight to the front.




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