Inspection (Except Si Hatchback)
See Fig 1 for exploded view of rear drum brake. Check wheel cylinder for leakage. Check brake linings for cracking, glazing, wear, and contamination. Measure brake lining thickness. Measurement does not include brake shoe thickness. See DRUM BRAKE SPECIFICATIONS for drum brake lining standard. If the brake lining thickness is less than the service limit, replace brake shoes as a set. Check hub bearing for smooth operation. If it requires servicing, replace it. See appropriate REAR article in SUSPENSION. Measure inside diameter of brake drum with vernier calipers. If inside of brake drum is more than service limit, replace brake drum. See DRUM BRAKE SPECIFICATIONS for inside drum thickness standard. Check brake drum for scoring, grooves, corrosion, and cracks.