Clutch Disc And Cover: Inspection

CLUTCH DISC
1. Facing wear
  Measure the depth of rivet head from the surface of facing. Replace if facings are worn locally or worn down to less than the specified value.
  
  Depth Of Rivet Head:
  1. Limit of sinking
    1. 0.3 mm (0.012 in)
  CAUTION: Do not wash clutch disc with any cleaning fluid.
  
  Fig 1: Measuring Depth Of Rivet Head From Surface Of Facing
2. Hardened facing.
  Correct by using emery paper or replace.
3. Oil soakage on facing
  Replace clutch disc and inspect transmission front oil sealing, transmission case mating surface, engine rear oil sealing and other points for oil leakage.
  
  Fig 2: Identifying Surface Of Facing
4. Deflection on facing
  If deflection exceeds the specified value at the outer circumference of facing, repair or replace.
  
  Limit for runout:
  1. 1.0 mm (0.039 in) at R = 107 mm (4.21 in)
  Fig 3: Measuring Deflection On Facing
5. Worn spline, loose rivets and torsion spring failure
  Replace defective parts.
  
  Fig 4: Identifying Facing Components
CLUTCH COVER
NOTE: Visually check for the following items without disassembling, and replace or repair if defective.
1. Loose thrust rivet.
2. Damaged or worn bearing contact area at center of diaphragm spring.
  
  Fig 5: Visually Checking Clutch Cover For Wear Or Damage (1 Of 2)
3. Damaged or worn disc contact surface of pressure plate.
4. Loose strap plate setting bolt.
5. Worn diaphragm sliding surface.
  
  Fig 6: Visually Checking Clutch Cover For Wear Or Damage (2 Of 2)
FLYWHEEL
CAUTION: Since this bearing is grease sealed and is of a non-lubrication type, do not wash with gasoline or any solvent.
1. Damage of facing and ring gear
  If defective, replace flywheel.
  
  Fig 7: Visually Checking Flywheel For Wear Or Damage
2. Smoothness of rotation
  Rotate ball bearing applying pressure in thrust direction.
3. If noise or excessive play is noted, replace flywheel.