S15/T15 Jimmy 2WD V6-4.3L VIN W (1998)
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Tighten the nuts evenly, and tighten the nuts alternately to avoid possible brake rotor distortion.
Aluminum Wheel Porosity Repair
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Remove the tire and wheel assembly.
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Locate the leaking areas by inflating the tire to 345 kPa (50 psi), and by dipping the tire and wheel assembly into a water bath.
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Mark the leak areas. Remove the tire from the wheel.
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Scuff the inside surface at the leak area with 80 grit sandpaper. Clean the area with general purpose cleaner.
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Apply a 3 mm (1/8 in) thick layer of adhesive/sealant to the leak area. Allow 12 hours to dry.
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Mount the tire on the wheel.
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Inflate the tire to 345 kPa (50 psi).
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Check the tire for leaks.
CAUTION: To avoid serious personal injury, do not stand over tire when inflating. The bead may break when the bead snaps over the
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 the beads, deflate, relubricate the beads and reinflate. Overinflation may cause the bead to break and cause serious personal injury.
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Adjust the tire pressure in order to meet specifications.
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Balance the tire and wheel assembly.
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Install the tire and wheel assembly.
Aluminum Wheel Refinishing
A protective clear coating covers the surface of original equipment cast aluminum wheels. A surface degradation develops if frequent automatic car wash
cleaning wears off the factory applied protective clear coating. This can happen at some automatic car wash facilities that use aggressive silicon carbide
tipped air brushes to clean whitewalls and tires. Once you damage the protective clear coating, exposure to caustic cleaners and road salt can cause
further surface deterioration. The following procedure details how to strip, clean, and redcoat aluminum wheels affected by these conditions:
Important: You do not need to remove the tire from the wheel in order to perform this procedure. If you remove the tire, mark the tire position to the
wheel. Use the valve stem as an index. When remounting, return the tire to the original position on the wheel.
1. Mark the wheel and the tire for position on the vehicle.
2. Remove the tire and wheel assembly.
3. Mark the position of the wheel weights. Remove the wheel weights.
4. Wash the wheel inside and out with a water base, all-purpose cleaner. Remove the grease and oil with a solvent cleaner.
ACCENT COLOR PREPARATION
Sand the painted areas that will not require recoloring with 400 grit, wet or dry, in order to promote adhesion of the clear coat.
Clearcoat Damage to Aluminum Wheels
Mount the wheel on a brake lathe and spin slowly. Sand the wheel with a backing block or a pad. Hold the abrasive flat against the surface of the wheel.
Move slowly back and forth from the center to the outer edge of the wheel in order to remove imperfections.
Important: Do not use abrasives coarser than 80 grit.
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Sand with 80 grit.
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Sand with 150 grit.
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Sand with 240 grit.
SLIGHT CLEAR COAT DAMAGE ON UNPAINTED WHEELS
CAUTION: Use of eye goggles is necessary to prevent personal injury.
1. Remove the original clear coating.
1.1. Apply a chemical stripper to the wheel surface and allow the chemical to penetrate the coating. Remove the stripper following the
manufacturers recommendations.
1.2. Rinse the wheel surface thoroughly with clean water.
CAUTION: Do not use vehicle power to rotate the wheel while sanding to avoid personal injury.
2. Remove the surface oxidation. Sand the wheel with 240 grit (wet or dry) while rotating the wheel on a slow spinning brake lathe or by mounting it
on the vehicle and spinning the wheel by hand. This should restore the machined appearance and promote adhesion.
Aluminum Wheel Recoating Procedure
1. Clean the surface of any contaminants by washing with soap and water.
2. Spray the wheel with Amchem #33, or equivalent. Let this soak 13 minutes.
