Inspection (All Models)
- Inspect clutch pressure plate diaphragm fingers for wear. Inspect clutch plate for oil or grease saturation, worn or loose facings, warpage, loose rivets at hub and broken springs. Also, inspect for wear or rust on splines.
- Using slide caliper, measure clutch disc rivet head depth. Minimum rivet depth is .012" (0.3 mm). Using dial indicator, check clutch plate runout. Maximum clutch plate runout is .028" (0.7 mm). Inspect flywheel for cracks, heat damage, wear and scoring. Machine flywheel if scored or worn.
- Mount dial indicator so tip of indicator is against outer clutch disc-to-flywheel contact surface of flywheel. Position pry bar between rear crankshaft flywheel mounting flange and engine block. Pry crankshaft fully rearward. Rotate crankshaft one complete revolution while noting variation of reading on dial indicator, which indicates flywheel runout. Maximum allowable runout is .008" (0.2 mm).
- If runout exceeds specification, use crisscross sequence to loosen flywheel bolts. Remove flywheel. Repeat runout reading procedure as in previous step, except place dial indicator tip against crankshaft rear flange face. If crankshaft rear flange is cause of excessive runout, resurface crankshaft flange face or replace crankshaft. If flywheel is cause of excessive runout, resurface or replace flywheel.
- Check rear main seal for leakage. Inspect pressure plate for burn marks, scores, flatness and ridges. Ensure clutch plate slides freely on transaxle input shaft.
- Rotate outer race of clutch release hub while applying pressure. If bearing rotation is rough, replace clutch release hub and bearing. Check for any surface scoring or burrs inhibiting sliding motion of clutch release hub and bearing.