OEM 2003 Toyota Corolla Pressure Plate

2003 Toyota Corolla Pressure Plate Parts Q&A

• Q: How to overhaul the pressure plate on 2003 Toyota Corolla?

  A: Starting the pressure plate overhaul requires steps including manual transaxle assembly removal and subsequent clutch release fork sub-assembly extraction followed by the clutch release fork separation with its clutch release bearing from the transaxle assembly. Start by taking out the clutch release bearing assembly from the clutch release fork followed by removing the release fork support from the transaxle assembly then continuing with removal of the release bearing hub clip before taking the clutch release fork boot. Align the matchmarks from the clutch cover assembly on the flywheel sub-assembly before loosening each set bolt one turn to free up spring tension. Remove the clutch cover assembly after removing its six bolts and keep the clutch disc assembly from falling during removal. Remove the clutch disc assembly while maintaining the lining part of the clutch disc assembly together with the pressure plate and surface of the flywheel sub-assembly free from oil and all foreign substances. Vernier calipers must measure rivet head depth in the clutch disc assembly to ensure it stays under 0.3 mm (0.012 inch); if needed, replace the assembly. The correct direction insertion of the clutch disc assembly into the transaxle assembly demands measurement with a dial indicator to confirm runout below 0.8 mm (0.031 inch). If the runout reaches beyond 0.8 mm it requires replacement. Vernier calipers should be used to examine the clutch cover assembly, which requires diaphragm spring depth to remain below 0.5 mm (0.020 inch) and width to stay within 6.0 mm (0.236 inch); replace failed components. A dial indicator should be used to inspect flywheel sub-assembly runout which must be below 0.1 mm (0.004 inch) otherwise replacement is required. The clutch release bearing assembly should be checked by hand turning with axial loading until replacement becomes necessary. The installation requires using Special Service Tool: 09301-00210 to enter the clutch disc assembly before guiding it into the flywheel sub-assembly with the correct orientation. Follow the matchmark alignment while tightening the specified bolt order to 19.1 Nm (195 kgf-cm, 14 ft. lbs.) and check that the disc stays centered during this process. Use the dial indicator with roller instrument to check diaphragm spring tip alignment on the clutch cover assembly during inspection and adjustment until it reaches within 0.5 mm (0.020 inch); Special Service Tool: 09333-00013 helps with any required adjustments. The installation order begins with the clamp support of the support assembly to the transaxle assembly at 36.8 Nm (375 kgf-cm, 27 ft. lbs.) torque followed by the bearing hub release clip and the clutch release fork sub-assembly. Release hub grease (Part No. 08887-01806) is essential for each contact point before assembly. Pre-installation requires the input shaft spline to receive clutch spline grease (Part No. 08887-01706) then verify the release bearing shows smooth movement before completing the installation. The manual transaxle assembly should be put together after installing the clutch release fork boot.