Locate air leaks by inflating the tire to 345 kPa and immersing the wheel in a container of water.
Mark leaks and remove the tire from the wheel.
Treat the inner surface of the wheel in the defective area with sandpaper and then clean the treated area with an all-purpose cleaner.
Apply a 3.3 mm sealing patch to the defective area and wait 12 hours for the adhesive to dry completely.
Install the tire on the wheel, inflate it to a pressure of 345 kPa and check the tightness of the wheel.
Bring the air pressure in the tire to normal.
Balance the wheel.
Install the wheel assembly to the vehicle.
Tighten the wheel bolts with a torque wrench to 90 Nm.
Restoring the protective coating of aluminum wheels
The cast aluminum wheels have a clear or colored protective coating. If the integrity of the protective coating is violated, the destruction of the material of the wheel begins. The protective coating can be damaged in a car wash where hard-tipped brushes are used to wash the sidewalls of the tires. Unprotected wheel material is destroyed by the action of caustic detergents and salt compounds used for road treatment in winter. The technology for resurfacing aluminum wheels is described below. Required tools and materials:
- Arnchlen Alumi Prep N33 Aluminum Cleaner and Conditioner (№ DX533) or an equivalent substitute.
- Coating for aluminum Arnchem Alodine N1001 (№ DX50T) or an equivalent substitute.
- Acrylic urethane coating for Ditzier aluminum. Delclear Acrylic Urethane Clear (№ DAU-75) or an equivalent substitute. Ditzier Delthane Ultra-Urethane Additive (DXR-80) or an equivalent substitute.
General processing sequence
Mark the location of the wheel on the vehicle and the holes for the mounting bolt.
Remove the wheel from the car.
Mark the position of the balancing weights and remove them from the wheel.
Wash the exterior and interior surfaces with an aqueous solution of an all-purpose cleaner. Remove traces of grease and oil with solvent.
Cover the tire with a screen to protect it from droplets of the coating.
Depending on the specific case, select and perform one of the two repair procedures: "Elimination of damage to the material of the aluminum wheel" or "Removing damage to the transparent protective coating of unpainted wheels".
Install balance weights with nylon coated clamps.
Mount the wheel and tire assembly on the vehicle and tighten the fixing bolts to 90 Nm.
Pre-treatment of damaged areas of the color coating
Sand with 40 grit sandpaper (dry or wet) damaged areas of the colored coating to ensure better adhesion of the wheel surface with a transparent protective coating.
Elimination of damage to the material of the aluminum wheel
Install the wheel assembly with the tire on the hub of the stand and turn on the slow rotation speed.
Grind with a sandpaper stretched over a bar of a suitable shape, defects in the material of the wheel. During processing, slowly move the bar with the skin on the treated surface of the wheel. Processing begins with a coarse sandpaper, then continues with a medium grit sandpaper and ends with a fine sandpaper. The following sequence is recommended:
- To clear a surface of pollution.
- Soak the wheel in the coating agent for 1 to 3 minutes.
- Rinse in water and pat dry.
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