I’ve done much of my own maintenance for 20+ years but for some reason never had occasion to plug a punctured tire. But after a NY-Boston drive following
Thanksgiving, I noticed a low back tire and found a screw stuck in the tread. I pumped it up with a compressor, drove over to my local auto parts store, and picked up a $10 tire repair kit.
Back home in the driveway, I put a jack under the car near the tire to keep the rim from settling in top of the bead, pulled the screw out, and followed the instructions for reaming out the puncture hole and inserting the plug. The instructions said rubber cement isn’t necessary but I put some on the plug anyway for insurance. Then pumped the tire back up, and it seemed to hold pressure fine.
It was surprisingly painless. I wonder if anyone here has other tips and tricks for this type of repair, and what shops are charging these days to do it.
You’ll get replies here that there should be a patch on the inside, but in all honesty I’ve never had a problem with a plug. It sounds like you did it properly, including the generous use of rubber cement.
I’ve plugged many a tire. Lots of crap on the roads here. I even had to pull a nail clipper out of my tire once. I had only one failure where a plug started leaking again after a month. Replaced it with a fresh plug and cement. Now, all my cars have road hazard coverage, and I let the tire shop handle it.
Forgot to ask: does anyone notice a balance issue after plugging? My plugged tire is on the rear, but after I rotate, am wondering whether balance will be noticeably off. Probably not.
And speaking of strange things puncturing tires…when I was young our family car once suffered a puncture from a metal ballpoint Parker pen. The pen ended up almost entirely inside the tire.
Around here Pepboys repairs flats for free. As much as I love DIY, I usually use them. They do plug tires and I have not had balance issues. Last week my wife’s car had a slow leak and turned out to be the valve stem, again repaired free.
I have been plugging my own tires for years, except when they are fairly new. never had any problems…now when I buy tires I pay the extra for road hazard which came in handy after running over a sharp piece of metal and tire had to be replaced due to a nice slit in the tire. Its always funny how a nail or screw goes in perfectly straight when its lying down on the road.
But what I do is, when installing the plug I leave about a 1/4" of the plug sticking out of the tire. Then I take a propane torch and light off that !/4" of plug sticking out and let it burn and let go out.
So now did I not only plug the tire, I also vulcanized the plug into the tire.
Been pluggin’ my tires with just the gooey string to plug the hole. I always double up the string and only once in many years did I have one continue to leak. The tire was about ready for replacement anyway so I didn’t have it patched. Liability concerns (lawyers slithering about…) make the tire stores insist on a patch but the plugs will work just fine if its a driveway repair.
Well and here is the disagree post. I would never plug a tire myself. The proper way is to patch it on the inside but now they use the combination patch and plug. The last one I had done was 400 miles from home at a luckily open Walmart. It cost me $20. I don’t remember the last time I had a tire repaired though before that. So for the quality and the price, I have it done properly in a shop.
And a disagree post on burning the plug to vulcanize it.
Applying heat to a tire? Not a good idea. Pressure build up!
Vulcanization temps? 200 degrees F. If it’s burning, it’s reverting the rubber (changing it back into its constituent chemicals - that is unvulcanizing it.)
Have noticed no balance issues with the tire I had plugged and patched. But then, That’s an advantage to the newer method. After remounting, they get rebalanced. Nails and screws tend to go in straighter, cause if they aren’t they don’t go in as easily and get thrown. There is a lot of crap that stuck to your tire, for a while, then got thrown out on the highway and never caused a flat because of it’s orientation and location. Lot of both good and bad luck involved. I discovered that when I started doing road work with a tractor. Because they don’t throw debris, it tends to cut up tires badly. Fortunately, the tread depth is measured in Inches and not 1/32 's of an inch.
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