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:
Standard value: 1.3 - 1.9 mm (0.051 - 0.075 inch).
Limit of sinking: 0.3 mm (0.012 inch).

CAUTION: Do not wash clutch disc with any cleaning fluid.





2. Hardened facing
Correct by using emery paper or replace.
3. Oil soakage on facing
Replace clutch disc and inspect transmission front oil seal, transmission case mating surface, engine rear oil seal and other points for oil leakage.





4. Deflection on facing
If deflection exceeds the specified value at the outer circumference of facing, repair or replace.
Limit for deflection: 1.0 mm (0.039 inch) at R = 107 mm (4.21 inch).





5. Worn spline, loose rivets and torsion spring failure Replace defective parts.





CLUTCH COVER
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.





3. Damaged or worn disc contact surface of pressure plate.
4. Loose strap plate setting bolt.
5. Worn diaphragm sliding surface.

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.





2. Smoothness of rotation
Rotate ball bearing applying pressure in thrust direction.
If noise or excessive play is noted, replace ball bearing as follows:
a. Drive out ball bearing from flywheel.
b. Press bearing into flywheel until bearing end surface is flush with clutch disc contact surface of flywheel. Do not press inner race.
ST 899754112 Snap Ring Press, or equivalent.