Clutch: Testing and Inspection

CLUTCH PARTS INSPECTION
1. INSPECT CLUTCH DISC FOR WEAR OR DAMAGE
Using calipers, measure the rivet head depth.

Minimum rivet depth:
0.3 mm (0.012in.)

If a problem is found, replace the clutch disc.





2. INSPECT CLUTCH DISC RUNOUT
Using a dial indicator, check the disc runout.

Maximum runout:
0.8 mm (0.031 in.)

If runout is excessive, replace the clutch disc.





3. INSPECT FLYWHEEL RUNOUT
Using a dial indicator, check the flywheel runout.

Maximum runout:
0.1 mm (0.004 in.)

If runout is excessive, replace the flywheel.





4. INSPECT DIAPHRAGM SPRING FOR WEAR
Using calipers, measure the diaphragm spring for depth and width of wear.

Maximum:
Depth
0.6 mm (0.024 in.)
Width
5.0 mm (0.197 in.)

If necessary, replace the clutch cover.





5. INSPECT RELEASE BEARING
Turn the bearing by hand while applying force in the axial direction.

HINT: The bearing is permanently lubricated and requires no cleaning or lubrication.

If a problem is found, replace the bearing.