UNDERDRIVE Clutch & No. 3 One-Way Clutch: Inspection
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1992 Geo Prizm, 1991 Toyota MR2, 1991 Toyota Corolla, 1991 Geo Prizm, and 1990 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- Clean all parts (except discs) with solvent. Dry parts using compressed air. Inspect discs and plates for wear or burnt areas. If discs are peeled or discolored, replace discs as necessary.
- Ensure check ball is free in piston. Apply low air pressure to small hole in piston to check for air leakage around piston valve. Inspect discs and plates for wear or burnt areas. Replace all damaged components.NOTE: New discs must be soaked in ATF for at least 15 minutes prior to installation.
- Measure inside diameter of underdrive clutch drum bushing. Standard diameter for front side of bushing should be 1.831-1.832" (46.50-46.53 mm). Standard diameter for rear side of bushing should be 2.165-2.167" (55.00-55.03 mm). Maximum inside diameter should be 1.833" (46.57 mm) for front side and 2.169" (55.08 mm) for rear side. Replace underdrive clutch drum if not within specification.