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A FLAT TIRE ???

6TTR3A

Jedi Warrior
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<span style="font-size: 11pt">Last year I “re-tired” my 3A. I’ve been happy with Arizonan™ 165R-15s but since I have wire wheels I was also concerned about tubes. I asked my tire provider to check out my tubes as they dis-mounted the old tires, looking for any signs of distress, etc.
They admitted that they don’t deal with tubes and therefore didn’t know what to look for.
<span style="color: #CC0000">99.6% of tires sold today are mounted as tubeless, so I understood.</span> I provided new radial tubes and had them mount and balance the new tires. 2500 miles later, on my way from San Diego to Breckenridge, I had TWO flats !! I have 40,000 mi. + on “Miss Moneypenny” and never even a slow leak, much less a flat. I was fortunate on this trip to find tire shops on the way that were willing to work on a wire wheel tubed tire.
Ok, I’m back home and a week later on a short 240 mile trip I have ANOTHER flat !!! I must mention at this point that there were no repeats (RR, LF, LR) My luck holds out and once again I find a “mom & pop” tire repair shop, but this gentleman imparts some <span style="color: #990000">VALUABLE</span> information.
I had remarked to him that this is my third flat in as many weeks after years of trouble-free driving. He said <span style="color: #3366FF">“I’ll bet you bought all tires at the same time, and have about 2500 miles on them.” </span> Yes & yes, actually closer to 3000. <span style="color: #000099">“OK says he, here’s what is happening. In the last 2-3 years the tire manufactures have been using little gum-backed labels with bar codes on them to show that the tire passed a quality control check. The QC person usually affixes the label to the inside side-wall of the tire. There are other labels as well, sometimes three to a tire, usually on the inside sidewall. No reason to remove those labels before installing a tube, right? WRONG!! A radial tube is designed to flex with the tire sidewall but not at the same ratio, so what happens is the tube rubs against those little labels, wearing away the paper and now down to the adhesive. The adhesive prevents that part of the tube to flex (less than one square inch!) After 3 million or so rotations a pinhole develops on the tube in the exact center of where the label adhesive grabbed onto the tube.” </span> As he explained this he showed me the tube he had just removed and there was not one pinhole but TWO. A look inside the tire revealed two patches of adhesive corresponding to the tube holes.
<span style="color: #990000">Conclusion: If you use tubes in your wire wheels, be SURE you get any labels COMPLETELY removed from the inside of the tires before mounting your new radials.</span>

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Indeed, the 'old time' practice was to dust the inside of the tire with talcum powder, to ensure that the tube didn't stick. For awhile, tubes came "pre dusted" but it sounds like you got some that weren't (or else the adhesive was able to overcome the powder).
 
I'll add that talcum powder is easy to find -- I use Baby Powder -- but you have to read the label as some baby powder is 100% talc and some is corn starch.

Also good practice to inflate & deflate the tube (I do it a couple of times with the valve core out) to assure that it gets positioned with nothing pinched.

A local MGB owner went thru a rash of flats this year after getting a new set of tires (possibly from the same chain where yours were mounted as I know where he got his and I think I know who sells the house brand 'Arizonan').
 
I don't know if I'll ever need the information for myself, but it is fascinating. Thank you for sharing and I'd bet you will save somebody some trouble somewhere along the line.
 
Its fascinating, and very true- a friend in my club had this exact same issue about a year ago, and it drove him crazy for a while until they found the source of the problem.
 
thats exactly why I had a flat tire, when I found the leak it had an imprint of a sticker on the tube,

now we know

Hondo
 
Great information, thank you.
 
I'm the "friend" Randy mentioned above and yes, this is EXACTLY the same problem I had with my new Arizonians and new tubes on my TR3B. I had 3 flats in a week on different tires. One of them occurred on the freeway at 6o mph and was scary.

When we remounted the tires the last time (Discount Tire), they added some powder and we were sure to remove all the stickers. In addition, they gave me a new set of tires all around.

Wish I had written about this sooner! Sorry.....
 
Dittio on my BF Goodrich tires ,three stickers per tire. Tire installer clueless. Three flats in one week. Just about 500 miles on the tires.
 
It's reasons like this that, while I love the look of wire wheels, I went with modern KN Minator wheels with my TR6 instead... it seems no one knows how to deal with tube tires or wire wheels, let alone both, these days.
 
thats why you get some tire irons so you can change your own tires, only thing is you have to take them to someone to get balanced, Once you break the bead its pretty easy to change the tire.

Hondo
 
Here is a good one. Out in the TR3 this Sunday driving in the foothills, The left front tire went flat. Disassemled the tire/wheel and found that my BF Goodrich tires have ridges on the inside that are cutting in to the tube. The ribs are about one inch apart all the way around the outside of the tube.
Short of grinding the inside of the tire smooth on all four tires there is nothing to do. So Dayton tubeless wheels hear i come.
 
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