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Sealing tubeless tires.

A

Animal

Well-known Member
I have a combine head trailer with tubeless tires and they leak around the bead. What is best to use on the beads to get them sealed up?
 
make sure the rim is smooth, not bend, check the bead area of tire for damage, or just put a tube in, cheap insurance.
 

Make sure it is really the bead, too!!

I've thought thats what it was in the past on some wheels, and then found out it was the valve stem...

Once there was a tiny pinhole that had separated in a seam in the steel wheel rim itself...

Howard
 

Tubeless tires for non-road use or road use at low speed, I have found that just going with a tube works the best for me. I have found leaks at the bead, leaks at the valve stem and leaks through the side wall material. A tube just covers all possibilites for me.
 
Murphy's tire soap...kinda looks like wheel bearing grease but they dont interchange...put a good heavy coat on tire and rim and seat...leaks are gone unless you got heavy pitting on rim.
 
(quoted from post at 10:26:13 04/27/12) Murphy's tire soap...kinda looks like wheel bearing grease but they dont interchange...put a good heavy coat on tire and rim and seat...leaks are gone unless you got heavy pitting on rim.
Click to expand...

Awesome stuff, hard to find in small amounts.

Paint sticks like you would use to mark hogs work equally well.
 
Like Jim said, there is a bead sealer out there. I got a can of it to seal the beads on little tires on 8" rims and so far I've had maybe 75% success. I tried it because I didn't have a tube handy and I couldn't find a tube real quick in the store and I needed the tire NOW. You have to follow instructions, meaning you let the stuff dry a little before you put the tire back on.
 
Break them down. Clean the wheels either with a wire wheel, needle scaler or sand blaster.... paint them. Then use a abundant coat of bead sealer that is readily available at NAPA or any other auto parts store. Make sure you also clean around the valve stem hole and coat the stem as well. Provided you have tubeless tires... they should not leak after this.

Rod
 
I would put tubes in them if they're available. I did that on my lawn trailer. I should've dismounted those tires when I bought that trailer and primed them with an epoxy primer. When the tires leaked down water or moisture cause heavy rusting. Your rims may have rust around where the bead seals. Hal
 
Rims need to be good and clean and free of rust and dirt etc. Then they should have a good coat of paint on them to make sure the surface is smooth as a babies butt. Then if that does not do it they make a goop that is just for your problem and you brush it on then air the tires up and it seals them well. It is sort of like a plastic/tar stuff that any good tire shop will have on hand. Yep BTDT many times and another thing that works is paint the rims 2 or 3 coats then install the tires while the last coat is still tacky
 
Remove the tires, clean the rims really well. If repainting them too much paint can chip off during reinstallation of tire and the paint chip can lodge between the rim and tire and leak. Also clean the tire beads with a little solvent or kerosene. When putting the tire back on the rim use some dish water soap for lubricant. I worked at a tire shop for 35 years.
 
Tubes in tubeless tires is not the answer. Get a nail in a tubeless tire and you have a slow leak but you can get home or at least to a repair shop. Get a nail in a tubeless tire with a tube in it and you have a flat, usually with a 3 inch rip in the tube too.

I run everything that I can tubeless. Clean the beads really well, use a sealer (any of the methods suggested work) and use new or metal stems with rubber seals. Tubes are a pain and none are made in USA. The last ones I put in came from Venezuela! Tires are just a pain in general.
 
At work when i do tubeless tires clean the rims good add the sealer and then run a rachet strap around the tire and crank it down tight in the middle, it puts pressure on it around the bead and causes a good seal. Just dont add to much air cause you wont get the strap off or the strap is going to snap.
 
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