Pressure Plate: Testing and Inspection
NOTE: Clutch pressure plates have not been designed to permit overhauling or repairing. Checking is limited to dry cleaning and removal of dust with compressed air and emery cloth as well as a thorough visual inspection.- Clean clutch. Clean bearing surface of pressure plate with emery cloth, if necessary, polish out burnt spots. Blow out entire mechanism thoroughly with compressed air.
- Check tips of diaphragm springs for traces of wear from clutch release bearing. Scoring to a depth of 0.3 mm is not significant.
- To remove the release bearing, take pressure off of circlip by applying pressure on pressure plate and thrust ring. Remove circlip with needle-nose pliers.
- Check bearing surface of pressure plate for cracks, burnt spots and wear.
- Check deflection with a steel ruler. Pressure plates with up to 0.3 mm deflection inward (measured with a feeler gauge blade) can still be used.
- Inspect spring connections between pressure plate and cover for cracks.
- Check tightness of rivets. Replace pressure plates with damaged or loose rivets.