A leak in a tire is annoying and dangerous. Steel rims leak air through the rim and the tire, and alloy rims cause a leak through pores found in cast-aluminium alloy. The holes can be sealed and repaired, but replacing the rims or tires is recommended if the leak persists.
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Things you need
- Grease pencil
- 80-grit sandpaper
- Carburettor cleaner
- Silicone gasket sealant
Inflate the tire to 18.1 Kilogram per square inch.
Demount the tire from the rim.
Place the damaged rim in a large tub of water and watch for bubbles indicating the origin of the leak.
Mark the leaks with a grease pencil and take the rim out of the water.
Sand the leaking areas with 80-grit sandpaper, then brush away any debris or remnants.
Dab the sanded leaks with a towel and clean the leaks with carburettor cleaner.
Cover the area thoroughly with a silicone gasket sealant.
Let the sealed rim dry overnight, then remount it onto the tire.
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