Interesting...I had to keep the volume low since my roommate is trying to sleep and I don't wanna wake him up, but is that basically saying that just a quick weld will make it heat up even after you've completed welding...like the heat is being dissipated from the rim to the air in the tire over the course of a few minutes?
Something else I want to touch on...I get lots of flat tires at work, especially in our John Deere Gator which I put through hell and back. Sometimes I can't get the beads to reseat and it was suggested to me to spray a small amount of starter fluid inside the tire and then light it and it would "magically" seat the beads.
Here's what I'm talking about...I'm sure many of you have heard of this 'trick'
Now I know the risk of lighting starter fluid...that stuff is crazy flammable so when I did this, I sprayed a small amount in the tire, attached a piece of a rag to the end of a 3-4' long rod and held it near the rim until the fumes ignited.
I will never again try this little trick...I got lucky. When this ignited, my eyes briefly blacked out and my ears were ringing...it sounded like a pipe bomb had just exploded in my face. It was so loud the dog at the neigbor's nearly a quarter of a mile away was going NUTS barking like crazy.
If that tire has ANY weak spots in it...instead of pressurizing and seating on the rim, it very well may just blow out the weak spot. In my case, it blew out a patch and a hole large enough I could probably stick my entire lower arm through. If you can't get the beads to seat...take your tires to a professional!
Here's what the John Deere Gator tire looked like in the end...I'm just glad I was smart enough to use a rod for lighting it or I'm afraid I may have lost a limb.