Slow air pressure leak around rim?
#1
Race Director
Thread Starter
Slow air pressure leak around rim?
This is an A6 scrub on a 12 inch ccw14.
I had it mounted about 3 weeks ago & went to put it on today & it's flat.
I put 40psi in and showered it with water mist & some dilute purple power to get bubbles.
It has about 6 sections on both faces of tiny air leaks.
3 other similar rims/tires are fine.
Any ideas?
If there is some trick to get it to seal better I'd like to know before I take it back to be redone.
This place uses beaucoup lube on the tires to get them over the rim.
I will tell them to clean it up & try again.
Thoughts?
I had it mounted about 3 weeks ago & went to put it on today & it's flat.
I put 40psi in and showered it with water mist & some dilute purple power to get bubbles.
It has about 6 sections on both faces of tiny air leaks.
3 other similar rims/tires are fine.
Any ideas?
If there is some trick to get it to seal better I'd like to know before I take it back to be redone.
This place uses beaucoup lube on the tires to get them over the rim.
I will tell them to clean it up & try again.
Thoughts?
#2
Suckin' gas, haulin' ass.
Member Since: Apr 2010
Location: Newport News Virginia
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You could try scuffing the bead and cleaning the bead area on the rim. I've heard of some people using rubber cement around the bead before. Can't see what it would hurt, honestly.
#3
Hoosier has cappy flash treatment. There is often rubber flash on the bead. This get trapped on the wheel and leaks air. Classic hoohoo problem.
Either clean that off or use bead sealer. Sometimes you get lucky just break bead and re-inflate and the flash moves to a different spot and you are OK.
Either clean that off or use bead sealer. Sometimes you get lucky just break bead and re-inflate and the flash moves to a different spot and you are OK.
#5
Team Owner
I have an air leak on stock C6Z06 wheel with NT05 tire. The shop could not find any air boubles so dismounted and remounted tire. It was good for several days. Now its back to adding air every 2 days. I have to go back. Any ideas ??????????????
DH
DH
#7
Team Owner
#8
Yes. Take the wheel off car. Use soapy water in a spray bottle and spray it on the inside around bead and out side aroud bead the on running surface. Then all over the tire if you have not found it. Spray water on the valve stem and the inside of the stem on the filler tip. Look for air bubbles. It is easier to find the leaks in a water tank that they have at gas stations and put a good 40psi in the tire helps too. The problem is much more likely in the tire/valvestem than the wheel. On a 3 piece wheel you need to spray soapy water on the seams but I thought your wheels are 1 piece.
#9
Team Owner
Yes. Take the wheel off car. Use soapy water in a spray bottle and spray it on the inside around bead and out side aroud bead the on running surface. Then all over the tire if you have not found it. Spray water on the valve stem and the inside of the stem on the filler tip. Look for air bubbles. It is easier to find the leaks in a water tank that they have at gas stations and put a good 40psi in the tire helps too. The problem is much more likely in the tire/valvestem than the wheel. On a 3 piece wheel you need to spray soapy water on the seams but I thought your wheels are 1 piece.
I will let you know if they find anything else. And I will make sure they clean the bead good.
Yes stock wheels.
DH
#10
But they did not do it right. There are few places for the problem to hide. Have them rock the rubber valve stem and shoot the soap on it. Put more air in the tire during testing. Offer still stands if you want to make the drive. I got tire changer.
#11
Team Owner
DH
#12
Melting Slicks
I hope it's just a valve stem or a crusty rim lip not sealing. I have seen some rookie tire mounting guys that dont know or forget to make sure the tire bead is below rim drop center when mounting.
If not, it stretches the tire and can rip/tear a bead if they try to force it. Then they will take a razor blade & cut off the torn rubber section trying to hide their mistake.
I saw this in person at the races years ago. I told the owner what I witnessed and had them dismount it in front of him. They ended up buying that person a new Hoosier tire after they saw the torn bead on a brand new tire.
Just something to to watch out for.
Aaron
If not, it stretches the tire and can rip/tear a bead if they try to force it. Then they will take a razor blade & cut off the torn rubber section trying to hide their mistake.
I saw this in person at the races years ago. I told the owner what I witnessed and had them dismount it in front of him. They ended up buying that person a new Hoosier tire after they saw the torn bead on a brand new tire.
Just something to to watch out for.
Aaron