CLUTCH UNIT(for 1GR-FE) INSPECTION

PROCEDURE

1. INSPECT CLUTCH DISC ASSEMBLY

   Note

   When replacing the clutch disc assembly, make sure to perform an inspection of the flywheel sub-assembly and clutch cover assembly.

   
   

   1. 

      Using a vernier caliper, measure the rivet depth.

      Minimum rivet depth
      0.3 mm (0.0118 in.)

      If the depth is less than the minimum, replace the clutch disc assembly.

   2. 

      Using a dial gauge, measure the clutch disc assembly runout.

      Maximum runout
      0.7 mm (0.0276 in.)

      If the runout is more than the maximum, replace the clutch disc assembly.

2. INSPECT CLUTCH COVER ASSEMBLY

   

   Text in Illustration

   *a	Width
   *b	Depth

   
   

   1. Using a vernier caliper, measure the depth and width of the diaphragm spring wear.

      Maximum Wear
      Depth Width 0.35 mm (0.0138 in.) 5.0 mm (0.197 in.)

      If the depth or width is more than the maximum, replace the clutch cover assembly.

   2. 

      Text in Illustration

      *a	Hair cracks, scratches or discoloration
      *b	Hair cracks, discoloration or excessive wear

      Perform a visual inspection of the clutch cover assembly.

      
      

      1. Inspect for hair cracks or scratches extending from the center outwards, or discoloration.

      2. Inspect for hair cracks in a circular pattern, discoloration or excessive wear.

         If there is any damage, replace the clutch cover assembly.

3. INSPECT FLYWHEEL SUB-ASSEMBLY

   

   
   

   1. Using a dial gauge, check the flywheel sub-assembly runout.

      Maximum runout
      0.1 mm (0.00393 in.)

      If the runout is more than the maximum, replace the flywheel sub-assembly.

   2. 

      Text in Illustration

      *a	Hair cracks, scratches or discoloration
      *b	Hair cracks, discoloration or excessive wear

      Perform a visual inspection of the flywheel sub-assembly.

      
      

      1. Inspect for hair cracks or scratches extending from the center outwards, or discoloration.

      2. Inspect for hair cracks in a circular pattern, discoloration or excessive wear.

         If there is any damage, replace the flywheel sub-assembly.

4. INSPECT CLUTCH RELEASE BEARING ASSEMBLY

   

   
   

   1. Check that the clutch release bearing moves smoothly without abnormal resistance by turning the sliding parts of the clutch release bearing (contact surfaces with the clutch cover) while applying force in the axial direction.

   2. Inspect the clutch release bearing for damage or wear.

      If necessary, replace the release bearing assembly.