Thanks slomo. I'm a DIY'er and I understand that your suggestion would be quick, and easy but expensive.Replace the tire. Move on with life.
Remove the wheel. Take it to a car tire shop. Call prior to make sure they have new tires in your size and maybe tubes as well. They will change it out in no time with the CORRECT TOOLS.
I'm one or two troubleshooting steps away from going with a tube. If I need to break the bead to try the sealant, I may as well put a tube in instead and save a step. I don't mind spending $20.00 for a good tube, I do need to find out what replacement tube gets the valve stem hole to line up best with the wheel hole. Some wheels seem to be closer to the center of the rim than the edge.Keep in mind that if the bead keeps coming unseated due to harsh side loading a tube can be easily installed since the tire bead unseats easily for the installation, but you do have to be careful now days and get a good name brand tube and it will be close to $20. (lots of China inner tubes that are a waste of money and time) Carlisle is one good name brand of tube.
When you hit a hard side load on the tire it immediately loses air but a tube might keep the tire bead seated and no lose of air even if the bead flexes.
After installing a tube I place a snug/tight small zip tie around the valve stem to help retain the stem from going inside if the tube gets low on air pressure.
Price and labor of a good inner tube now days will almost equal the price of a new tire so it's a judgement call on your part. (and if the tire has a small thorn inside a tube will do no good)
Thank you Forest#2. I truly appreciate you helping me understand the tube types. As I was looking around online I decided to call the place where I bought the mower years ago. They said they would put a new tube in for $27.00. I was sold, I took the wheel off the mower and took it to the shop.Since you are a do it yourselfer here is little bit of info to consider:
I may have overlooked your tire size.????
A TR13 is a straight stem tube and a TR-87 is the curved stem in Carlisle brand. Firestone is a good brand but not often seen.
You can view pictures of the tubes and stems on fleece bay.
I don't use the TR-87 curved stems very often unless it's on a little bitty rim. (or I see a really good lower price as compared to the same size straight stem tube.
Most generally the Lawn tractor Carlisle straight stem inner tube will be correct for lawn tractor rims for alignment if you select the correct size tube.
If the stem hole location is not even close for the tube I just move around the rim and drill a correct size hole, de-burr the hole and place couple layers of duck tape or equivalent over the other stem hole.
If you have Amazon prime a search will sometimes get a go, but keep a heads up, sometimes they (amazon) will show two tubes in the picture and you will only receive one at a inflated price.
At least with Amazon Prime if you receive the wrong tube or a bad tube it's usually FREE returns.
A tire shop will identify any rim issues. It wasn't that expensive to have them toss in a couple tubes and some tire sealant on my mower. Better than airing up tires every mow.Thanks slomo. I'm a DIY'er and I understand that your suggestion would be quick, and easy but expensive.
What if the problem is a warped or damaged rim that I cannot see? Then I've spend money on a new tire and the rim is the culprit.True, I could buy a new rim then and the problem will be solved. I will keep it in mind after I try a few more things.
Well slomo, I'd have to say that the tires are good quality since they are the original 9 year old tires. I never had a problem with the other three, just this one and I think I probably glanced a barrier breaking the bead to cause the first flat. After that I probably pumped it back up and got some dirt in the bead. After that I possibly damaged (stretched) the tire taking it off and putting it back on. So, the bead was fixed and the tire just wasn't tight on the rim like before.A tire shop will identify any rim issues. It wasn't that expensive to have them toss in a couple tubes and some tire sealant on my mower. Better than airing up tires every mow.
Sounds like you've possibly stretched the beads out and won't stay on the rim??. Tires are junk. Hard to tell from what you relay to us. Maybe it's time for a lawn crew if funds are too tight to maintain the mower? Do a cost analysis. Price of mower, blades, belts, spindles, oil, gasoline, air filters, fuel filters and maybe an oil filter. Have a lawn crew do it. You won't have to mess with any of that. Also you won't have to store it and buy new batteries for it every 3 years. Just sit on the couch drinking a cold one.