After removing the flywheel from the engine, check its mating surface with the driven clutch disk. It should be free of scratches and irregularities that can lead to wear of the clutch disk and uneven driving. If the surface requires grinding, it should be done in a specialized workshop.
After surface treatment, the flywheel should be balanced.
The toothed ring is fitted with tension on the flywheel rim. If some of the teeth are missing or the condition of other teeth is poor, the ring should be replaced.
The flywheel can be removed by drilling a 6mm diameter hole 8mm deep into the crown. This hole will weaken the crown and it is enough to hit the hole hard with a chisel once to break the crown. The crown can then be removed from the flywheel.
The new crown must be placed in an oven (domestic electric), heated to 180-230°C and kept at this temperature for 5 minutes so that the crown warms up completely.
Quickly pull the crown out of the oven, place it on the flywheel using a punch made of soft metal (such as copper) and carefully seat it in place.
The longitudinal runout of the crown should not exceed 0.508 mm.
CAUTION: If the flywheel is heavily worn or damaged, it is necessary to replace the entire flywheel together with the ring gear.