Checking Clutch After Dismantling

TO CHECK THE CLUTCH PLATE AFTER REMOVAL AND TO CHANGE THE CLUTCH PLATE LINING
1. Check the flywheel surface which is in contact with the clutch plate. If the surface is "blued" and has hairline cracks, this is of minor importance. But if the surface is deeply scratched, the flywheel should be turned or a new flywheel should be fitted.
2. Check the pressure plate unit for scratches and misalignment, and check the diaphragm spring for wear at the contact surface with the release bearing. If the pressure plate or diaphragm spring is defective, fit a new pressure plate unit.
3. Check the release bearing for noise, wear or other defects.
4. Check the clutch plate for wear and fit a new clutch plate, if necessary.

NOTE: If the clutch plate on a car with 4-speed gearbox is replaced by a clutch plate with pre-damper, the flywheel bolts must always be replaced by bolts with a lower head.
On cars with 5-speed gearbox, bolts with a lower head are used for securing the flywheel, to provide room for the pre-damper of the clutch plate. If new bolts are fitted, ensure that they are of the correct type.

CHECKS ON A NEW CLUTCH PLATE
- When the clutch plate is subjected to a load of 4230 N (948 Ib) between two parallel surfaces, its thickness should be 7.11 - 7.62 mm (0.280 - 0.300 in) or 6.86 - 7.37 mm (0.270 - 0.290 in) if the clutch plate is for a Turbo car.
- The clutch plate should be completely free when the surfaces have been moved apart by 1.27 mm (0.05 in) from the position they had when the above load was applied.