While on the subject of flat repairs, gota question for you avid Oddy folks.
I live in Fort Worth, Texas. With the high level of construction here and relatively frequent roof repairs (hail damage) we get lots of nails in our tires. I got tired of having to, almost monthly, take my cars to Discount Tire. Yes, the repairs are free, but the time was getting excessive.
A few of the repairs were done on the road and I noticed that most mom and pop gas stations use the simple fiberous plugs that are sold at Wal-Mart and similar retailers. The kit comes with a tool that's sorta like a round file to rough-up the hole and there's an insertion tool and a rubber "vulcanizing" cement. The procedure calls for removal of the nail/screw, rough-up the hole with the file, put the plug on the insertion tool, coat it liberally with the cement, and stick it into the tire. After a few minutes the excess plug is cut off.
The instructions make it very clear that this is only for small holes in the tread portion of the tire. It is not for a shoulder/sidewall hole - generally not repairable.
I decided to start doing this myself after having Discount Tire used the same procedure on a few tires I took to them. I asked the manager about it and he said if the cause of the flat was really small, like a roofing nail, then the plugs were ok. Larger holes require this fancy patch/plug combo thing.
Using the kit from Wal-Mart, I've fixed probably 30 or so flats over the last 6 years, all in steel belted radials, and never, never have had one issue. No blow-outs, no slow leaks, nothing. The plug is so small that it apparently does not impact the balance of the tire. Generally when I do the repair most of the air leaks out but I have a compressor so I can re-inflate the tire. If the repair is done on a front tire, I can do it without even removing the tire by turning the steering wheel as needed.
I'm wondering if any other readers have tried this themselves and can comment. I have to admit I'm always a little apprehensive about it, but I have yet to have any problem with it. Wal-Mart sells piles of these kits so obviously lots of other folks are using them, too. If there were really a problem I hope they would be made illegal.
Thanks,
Keith