Clutch Disc: Testing and Inspection

CLUTCH DISC INSPECTION

1.
NOTE:Install a new clutch disc if any of these conditions are present. Always install a new clutch pressure plate when installing a new clutch.
NOTE:For clutch discs that have oil or grease contamination, eliminate the source of the contamination.
NOTE:If the clutch disc springs are loose enough to rattle they will not cause noise when the vehicle is operating.
Inspect the clutch for the following:

- Oil or grease contamination
- Worn or loose facings
- Distortion
- Broken springs
- Burrs or uneven wear on the splines
- Wear or damage on the clutch disc surface

2. Check for a worn clutch disc lining. Measure the minimum allowable depth to the rivet heads with a slide caliper.

- Check for loose clutch disc lining rivets.






3. Use a dial indicator to check the maximum allowable runout of the clutch disc.

- Install a new clutch disc if the runout is excessive.






4. Use an emery cloth to remove minor imperfections in the clutch disc lining surface.






5. Check for wear or rust on the splines. If necessary, clean them with an emery cloth.