rear flat

[jdeere86]

hey everyone -- hope you all are having a good start to winter...towards the end of this season one of my rear tires kept ending up flat. i filled it back up --- couldn't detect any leak .. used for the work i needed (hour or so) and then next day would be flat again ... prob did this a dozen times as i couldn't seem to make time to actually fix it and was dreaming that maybe one of these times the air would stay ...

any suggestions on the course of action that I should take here --- admittedly i've seen these videos online where it seems like someone is spraying an aerosol around the rim and lighting it up haha doesn't seem to safe just wondering the logic behind that

thank you

[ajhbike]

Try some Berrymans or FlatOut...it has worked many times on my fronts and I am trying to get through the winter using it on a JD 3020 15.9-38 rear. You have to have the tire jacked up so you can spin it after you put in a quart or so and then overfill it a bit so the air leaving the tire takes the juice with it

[Don McCombs]

Mix a couple of teaspoons of dishwashing liquid in a pint of water. Air up the tire. Dab the liquid around the rim/bead junction and the valve stem. If there is a leak at these locations, you will get obvious bubbles. It is also possible that there is a crack or hole in the rim or tire. Use the same technique. The other option is to take the rim/tire combination to a tire dealer that sells commercial truck tires. Have them find and fix the leak. My money is on the valve stem or a hole in the tire.

[Jim Becker]

I was going to suggest as Don said, with one exception. Put the dishwashing solution in a spray bottle (the kind that a lot of cleaning products come in). Spray it on and watch for bubbles. I would start at the valve stem.

If it is a tube-type tire, this method won't tell you much that is useful unless it is leaking at the valve/stem. Of course, if the problem isn't at the valve stem you will have to either try your luck with some FlatOut or break it down and get the tube out to fix it. Once the tube is out, you can use the soap solution to find the leak.

[muleboss]

Is this tube or tubeless?

[CharlieK]

none of my cubs have tubeless tires

[SONNY]

Its not hard to take the tire off,--drag out the tube, find the leak, slap a patch on and put it all back together!

[SamsFarm]

Its not hard to take the tire off,--drag out the tube, find the leak, slap a patch on and put it all back together!

If you do as Sonny suggests, check the inside of the tire (really really good) for thorns, nails, etc.

Make sure the inside of the tire is really clean too. No little pebbles and such!

[SONNY]

YUP! Run your hands around the inside and wipe out ALL dirt rocks etc. so its clean!

[inairam]

The last time I had a flat I ended up having to weld around the valve and sandblast and paint the rim. TOO much rust to just put the tube in.