Clutch Unit: Inspection

INSPECT CLUTCH DISC ASSEMBLY
1. Using vernier calipers, measure the rivet head depth.
  Minimum rivet depth:
  
  0.3 mm (0.012 in.)
  
  If necessary, replace the clutch disc assembly.
  
  Fig 1: Measuring Rivet Head Depth
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Install the clutch disc assembly onto the transaxle assembly.
  NOTE: Insert the clutch disc assembly in the correct direction.
3. Using a dial gauge, measure the clutch disc assembly runout.
  Maximum runout:
  
  0.8 mm (0.031 in.)
  
  If necessary, replace the clutch disc assembly.
  
  Fig 2: Measuring Clutch Disc Assembly Runout
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT CLUTCH COVER ASSEMBLY
1. Using vernier calipers, measure the depth and width of the diaphragm spring wear.
  Maximum:
  
  A (Depth): 0.5 mm (0.020 in.)
  
  B (Width): 6.0 mm (0.236 in.)
  
  If necessary, replace the clutch cover assembly.
  
  Fig 3: Measuring Depth And Width Of Diaphragm Spring Wear
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FLYWHEEL SUB-ASSEMBLY
1. Using a dial gauge, check the flywheel sub-assembly runout.
  Maximum runout:
  
  0.1 mm (0.004 in.)
  
  If necessary, replace the flywheel sub-assembly.
  
  Fig 4: Checking Flywheel Sub-Assembly Runout
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT CLUTCH RELEASE BEARING ASSEMBLY
1. Check that the clutch release bearing assembly moves smoothly without abnormal resistance by turning the sliding parts of the clutch release bearing assembly (contact surfaces with the clutch cover) while applying force in the axial direction.
2. Inspect the clutch release bearing assembly for damage and wear.
  HINT:
  
  If necessary, replace the release bearing assembly.
  
  Fig 5: Inspecting Clutch Release Bearing Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002