Aluminum Wheel Porosity Repair

1. Remove wheel and tire.
2. Locate leaking areas by inflating tire to 275 kPa (40 psi) and dipping tire into a water bath.
3. Mark leak areas and remove tire from wheel.
4. Scuff the inside surface at leak area with 80 grit sandpaper and clean area with general purpose cleaner, such as 3M No. 08984 or equivalent.
5. Apply 3.2 mm (1/8 inch) thick layer of adhesive/sealant GM P/N 1052366, or equivalent, to leak area and allow 12 hours drying time.

CAUTION: To avoid serious personal injury, do not stand over the tire when inflating. The bead may break when the bead snaps over safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat beads, deflate, relubricate the beads and reinflate. Overinflating may cause the bead to break and may cause serious injury.

6. Mount tire on wheel, pressurize to 275 kPa (40 psi) and check for leaks.
7. Adjust tire pressure to specifications.
8. Balance and install wheel and tire.