Demounting rust bonded on tires.

bcny

Member
I have a 14.9-28 tire/wheel. I want to take the tire off for purpose of restoring the rim.
I suspect this one is "rust-bonded" on. I have damaged tires in the past removing them.
So I don't want to damage this one, it has tread life. How do I break the bead without
delaminating the rubber? Maybe soak it with some rust dissolver (like Evaporust)?
 
now i have heard of guys that will take the tire and wheel outside away from anything, and lay it flat on the ground. then take a cup full of gasoline and pour it around the bead edge and leave it sit over night. do not light the gas. it will soak in and soften the rubber on the bead. yup, heard of guys that do that. yup. thats what i heard. (wink wink).
 
Then use a slide hammer to break the bead. Myers Tire also sells a really good rubber penetrant for use on tire beads.
 
Years ago the owener of a local salvage yard would lay the tire down and pour a can of Coke on and leave overnight. Claimed it worked. But I think the Coke formula was different then
 
Purchase several cheap claw hammers and pound the claws under the rim between the rubber and metal This will allow the solvent to get into the bond. Hit the hammers downward with a rubber mallet. Jim
 
I just broke down 14.9 26 rusted on put tire against something were it cant move.Put loader bucket on tire cutter edge against rim lip push down enough to slide cutter edge under rim lip push in to rim hold position push down traper
 
BC there is nothing you can pore on the tire bead to loosen it up. If you have unbolted it from the tractor, lay it down, get yourself some rubber lube, a duck billed tire hammer, and go to work on it. Pay attention to how you are striking the unit, after appling a abundant amount of rubber lube to the tire, You want to hit the rubber tire just ahead of the rim, striking in a somewhat downward stroke, but with the intention of having the duck bill slide between the tire and rim. Do not use gasoline, a concentrated amount of it between the rim and tire can actually soften the rubber in the bead area, thus allowing the tire to slip on the rim. This will result in the stem being ripped off the tube. I've seen that happen several times. Duck bill tire hammers are expensive, it might be cheaper to have a tire pro remove it. Good luck with your tire.
 
Take the tire off and lay it flat. Then pour gas around the bead. Use enough to where you see it run completely around the bead. Let it set. The gas will soften the rubber/rust. Then take a slide hammer type of bead breaker and break the tire down. You need the impact to knock the rust lose and then the rubber will move on the rim. I would not put too much down force with a loader bucket on a real rusty bead. The tire may tear before it breaks down that way. You need to break the rust bind before moving the bead. This what the impaction from the slide hammer breaker does. The jack type of bead breakers can tear a tire too if it is rust bonded hard too.

They may make a commercial fluid to do this with but I have used gas since I was a teenager.
 
Back when tires lasted more than 5 years...

When I was a kid at my dads service station, if we had an old tubeless tire that was leaking around the bead, we'd break it down, run a gas soaked rag around the bead to clean and soften up the rubber.

Seemed to work pretty well.
 
Being a former tire repairman helps a lot which I am one of. I soak them good with a mix of dish soap and water for 15-30 minutes. Lay it flat and pour if on the bead area where it meets the rim and do so for that time. Then a good tire hammer if your a good aim or if your a bad aim or novice and slide type tire hammer. I have broken down many times over the year that had not been remove in decades doing it that way
 
You have more ambition than me.... I'd sandblast the wheel with the tire on it, if the goal is just making it look pretty. If you have a flat... do what you have to do. A can of Myers Skid goes a long way to helping break those things loose. I just use a duck bill hammer. I haven't found one yet that I couldn't break.

Rod
 
The tire damage I have encountered in the past was the bead area rubber being so stuck to the rim that bits of rubber are pulled out while dismounting. I do have a slide impact bead breaker, it works very well. So I will lay it flat, soak with something, walk the bead breaker around, let is soak some more. It was really old and junk tires on rust rims, when I savagely attacked it with hammers or impact breaker, that I saw the rubber tear outs. If I search around here (uhhh) I will find my official tire lube fluid.
I need new tubes, wonder if the tire store would dismount, give me time to restore rim, then remount, IF I bought the tube from them.
 
IMHO if you damage the bead the tire is rotten and should not be reinstalled anyway, as you will only be pulling it off again in the near future when the rest of the sidewall splits open.
 
I just removed one the other day in about 2 minutes. Laid it flat on the ground and put the outrigger from the backhoe on one side then used the bucket to push down from the other side. Flipped it over and did the other side.
 

What is usually overlooked here is that with the build-up of rust, the diameter of the rim at the bead is significantly more than it was originally. This makes the tire much tighter on the rim. So the problem is not just the roughness preventing sliding it is also tightness preventing sliding. If the tire is real that good, I would try phosphoric acid to reduce the diameter. let it work on one side for two days then two days on the other.
 

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