Aluminum Wheel Porosity Repair

REMOVE OR DISCONNECT
1. Raise and suitably support vehicle.
2. Tire and wheel. Refer to "Wheel Removal and Installation".
3. Locate leaking areas by inflating tire to 280 kPa (40 psi) and dipping tire and wheel into water bath.
4. Mark leak areas.
5. Mark tire at valve stem.
6. Tire from wheel. Refer to "Tire Mounting and Dismounting".
7. Scuff inside rim surface at leak area with number 80 grit sandpaper and clean area with general purpose cleaner such as 3M part number 08984 or equivalent.
8. Apply 3 mm (1/8-inch) thick layer of adhesive/sealant, GM P/N 1052366 or equivalent, to leak test area and allow six hours of drying time.

INSTALL OR CONNECT
1. Tire to wheel. Refer to "Tire Mounting and Dismounting" .
2. Align matchmark on tire with valve stem.
3. Pressurize to 280 kPa (40 psi) and check for leaks.
4. Adjust tire pressure to meet specifications on tire placard.
5. Balance tires and wheels. Refer to "Balancing Tire and Wheel".
6. Tire and wheel. Refer to "Wheel Removal and Installation".
7. Lower vehicle.