Ok to patch flat tire?
4th Gear Member
Joined: Nov 2008
Posts: 1,495
From: California
Different tire manufacturers say different things. I would go by what your manufacturer says, or what RMA (Rubber Manufacturers Association) says.
Basically, you should be okay if it is the only puncture on the tire,
does not exceed 1/4" in diameter,
the tire is dismounted from the wheel and inspected for internal damage,
and a patch AND plug are used (a combination patch and plug may be suitable if the puncture is close to a 90 degree angle to the tread).
The patch is needed to give a proper seal to the puncture, and the plug is needed to prevent water from getting into the puncture and rusting the steel belts.
Edit: Also, the puncture should not be close to the edge of the tread--too much flexing.
Basically, you should be okay if it is the only puncture on the tire,
does not exceed 1/4" in diameter,
the tire is dismounted from the wheel and inspected for internal damage,
and a patch AND plug are used (a combination patch and plug may be suitable if the puncture is close to a 90 degree angle to the tread).
The patch is needed to give a proper seal to the puncture, and the plug is needed to prevent water from getting into the puncture and rusting the steel belts.
Edit: Also, the puncture should not be close to the edge of the tread--too much flexing.
Last edited by Art161; Dec 7, 2010 at 09:10 PM. Reason: Additional comment.
Thread Starter
2nd Gear Member
Joined: Feb 2010
Posts: 346
From: Florida
Different tire manufacturers say different things. I would go by what your manufacturer says, or what RMA (Rubber Manufacturers Association) says.
Basically, you should be okay if it is the only puncture on the tire,
does not exceed 1/4" in diameter,
the tire is dismounted from the wheel and inspected for internal damage,
and a patch AND plug are used (a combination patch and plug may be suitable if the puncture is close to a 90 degree angle to the tread).
The patch is needed to give a proper seal to the puncture, and the plug is needed to prevent water from getting into the puncture and rusting the steel belts.
Edit: Also, the puncture should not be close to the edge of the tread--too much flexing.
Basically, you should be okay if it is the only puncture on the tire,
does not exceed 1/4" in diameter,
the tire is dismounted from the wheel and inspected for internal damage,
and a patch AND plug are used (a combination patch and plug may be suitable if the puncture is close to a 90 degree angle to the tread).
The patch is needed to give a proper seal to the puncture, and the plug is needed to prevent water from getting into the puncture and rusting the steel belts.
Edit: Also, the puncture should not be close to the edge of the tread--too much flexing.
Cut & Paste Expert
Joined: May 2007
Posts: 13,322
From: NW Arkansas
Patch yes, Plug, no.
If the steel belts are damaged, the speed rating goes out the door.
If the 'nail' pushed the steel belts to the side and has not damaged
them, then a inside patch is OK as long as it is not to close to the
outside edge of the treads where the sidewall flexes.
If the steel belts are damaged, the speed rating goes out the door.
If the 'nail' pushed the steel belts to the side and has not damaged
them, then a inside patch is OK as long as it is not to close to the
outside edge of the treads where the sidewall flexes.
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