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Re-Seating a Tire Bead - Passing Gas

Posted in How To: Wheels Tires on March 2, 2007 Comment (0)
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Re-Seating a Tire Bead - Passing Gas
154 0704 01 z+jeep tire bead re seating+popped off bead

Many of us here in magazineland don't run bead-lock wheels. The problem with that is that we still air down when we are wheeling, often to 8 psi, which means we tend to blow the tire bead off the rim with some regularity.

"Psssss" tends to accompany the sensation of one corner of the Jeep sinking, and sometimes even a burst of leaves getting blown away from the tire. Usually, it's the tire that is hardest to get to, but whatever tire it is, it's not the end of the world.

154 0704 02 z+jeep tire bead re seating+clean off bead

The first thing to do is get the weight off the tire. In this case, we removed it, but it's often just as easy to jack that corner of the Jeep up and re-seat it on the Jeep. After the weight is off the tire, make sure the bead surface is clean of sticks, mud, sand, or rocks. If it's sand or mud, use whatever liquid is necessary to clean both the surface of the rim and the corresponding part of the tire. If rocks or sticks are stuck in there, pull them out.

When you get down to it, the only tool you really need to fix this is an air source. Onboard, engine-mounted compressor, electric compressor, or a carbon dioxide air tank, it doesn't matter as long as it puts out air (the more the better). Sure, other tools can make it easier, as noted later in this story, but the only strictly necessary one is an air source.

Simply put, the more psi and volume you can supply, the easier the tire bead will go back to its home against the edge of the rim. We've done it with as little as 35 psi, lubricated the rim with some ATF, and it oh-so-slowly went back on. Normally, 80-120 psi is more likely to do the job.

154 0704 04 z+jeep tire bead re seating+valve stem core

After cleaning it with whatever is available-be it spit, water, antifreeze, ATF, and so on-we will usually remove the valve stem core. While not strictly necessary, we've found that removing it makes the bead seat that much faster. More air can get into the tire without the core in the valve stem, and that means more air pushing on the bead.

Whatever your situation, if you are wheeling with an air source (doesn't have to be yours), here are a few tips to help you get the tire back on the rim and continuing on down the trail.

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