CLUTCH DISC INSPECTION

1. Inspect the lining surface for discoloration and grease adhesion.

2. Inspect the torsion spring for weakness and the rivet for looseness.

3. Using a vernier caliper, measure the depth between the lining surface and the rivet head.

• If it is less than the minimum specification, replace the clutch disc.

Minimum depth

0.3 mm {0.012 in}

4. Measure the clutch disc runout using a dial gauge.

• If it exceeds the maximum specification, replace the clutch disc.

Maximum runout

0.7 mm {0.028 in}

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

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

7. Inspect the clutch disc for cracking, scoring, discoloration or other surface marks. Replace the clutch disc if necessary.