Today I learned that even when the day isn't blazing hot, it's still possible to use the sun to heat-soften a tire for mounting. -I put the tire and inner-tube on the front seat of a parked car with the windows rolled up. -A half-hour later, the rubber had softened up so nicely, I thought I should share the tip.
I also learned that it's not particularly difficult to mount a rear tire on a wheel that's still attached to the car. -Had figured the wrap-around rear fender would prevent sufficient access, but with short tire irons, it really wasn't too bad. -Took ten or fifteen minutes once I had the axle up on jack-stands. -Guess having done it enough times, I've gotten good at it.
Bet the inside of your car smelled great.
Smelled like a hot car, that's all. -This wasn't a new tire, so it didn't stink. -New tires don't really need to be heat-softened, they're pretty soft right out of the wrapping.
I will have to remember this in the winter!
Laying it out on a hot asphalt driveway or street accomplishes much of the same.
Last summer I had 4 new smooth black 30x3-1/2's to mount on Budd Wire Wheels freshly powder coated.
I layed the tires out on my concrete driveway for a while. When I went to pick them up they were so hot I had to use my welding gloves. I checked the temperature and each tire was between 104 to 120 degrees.
I must admit they almost fell over the rims with no damage to the finish.