De-rimming a tire
 

Any tips to quickly take a tire off a Bundt w/o going to a tire shop? I have a few dented alloy rims I want to remove the worn tires from so I can sell the aluminum. I was thinking of puncturing the tire with a knife then with a Sawzall cut through bead into the rim. Anyone done anything like that or have some other way?

The old-fashioned way was to take a couple tire irons and lever the bead over the edge of the rim. Since you don't care about marking up the rims, a couple big pry bars would probably do the trick.

Your plan might work but I think you'll find there's a lot more steel in a tire than you bargained for. ;)

Orv's way works, but you have to break the bead first. The traditional way is with a slide hammer. I'm guessing you don't have one of those. Another method that I've heard about is using the weight of a vehicle to break the bead. You jack it up and then let it down so that the frame presses on the tire, but not the rim. Just be VERY careful. I haven't done it this way, but I've used a similar method with the blade of a D7G on a very large loader tire and it worked great.

Given you are not concerned about the tire, you can drive over the tire with your front wheel. It used to be a very common trick in the days of no steel belts. Cant do it with steel belts if you wish to reuse the tire.
You open the door or have the window down so you can see your front wheel & drive over the tire as close as you can to the rim without the rims hitting. It is best if you turn the wheel a bit as you go over the tire so you squash it off the rim for some distance. We used to do this a lot when we were young to change tires on paddock bashers.

I have driven over the tire with a plank of wood and broken the bead, but getting the tire off with pry bars is a lot of work! Do you think a Sawzall with a metal blade will have troouble cutting through the steel braid and bead?

I tried that and it was really tough just getting it started as the rubber melts and gets sticky, the steel belts grab the saw blade and the whole tire shakes but little cutting occurs. I did manage to cut through but the darn bead still needed breaking before the tire would come off.

sawzall not a good plan, bolt cutters work ok. I have a dual opposing blade steel saw I'm going to try... I have something like 130 tires to remove... tire shop wants 5.00 per tire!!!

HF sells tire irons for about $3 apiece. Put the base of a jack on the bead and jack up the car. It should break the bead. Should be able to take it off with tire irons in a couple of minutes.

pull the valve out of the stem and beat the bead off with a sledge.

then pry the tire bead over the rim working your way around. It helps to have 2 big steel poles / prybars.

Make sure the other side of the bead is down in the valley of the rim. I have done it with a couple of very large screw drivers.
Start with both leavers about 3" apart & leaver the beadover. Then wiggle one leaver out & leaver just on the other side of the remaining leaver. keep on moving around the bead.
To get the back bead off, bring it over the front of the rim using 1 leaver. Then hit the bead from the outside (back) of the tire with a rubber mallet or hammer to bring the bead off.

X2 on my 4th favourite tool!

I have demounted a dryrotted tire with prybars, but only after a day of WD-40 soaking around the bead with the tire layed flat. Truck tire people apply lube and it works for them.

wont be too bad if you have big enough pry bars. Ive done this a couple times with truck tires, (although the bead seems easier to break on a big 100 psi steer or traction tire than car tires) Ive done it by just walking around on the tire to break the bead.

A couple of 5 foot breaker bars and you should be able to pry the tire off the rim, biggest problem you will have is holding the tire down why you try this and avoiding destroying the edge of the bundt if you were keeping it. Truck tires you usually stand on the rim, but the rim and tire also weight 50-80 lbs and its heavy steel. Even then I had to have a couple guys stand on the rim once.

Bundt cant weigh much more than 30 with a mounted tire. I could see the force of trying to pry it easily exceeding the force of holding it down.

For the trouble this would be, personally id just have a cheapo tire shop just dismount them in a few minutes and make a little less money on the aluminum, but save a bunch of time

Pour gasoline on the tire, light it up. Once the tire burns off, you have your wheel ready for scrapping.

I thought of that too.;) But I wouldn't want to do that in my back yard.;)
I wonder if the scrap metal yard would mind if I do that in their yard???:D

Question: How long would it take to burn off?