The ring gear on the flywheel is an interference fit. Heat the ring gear enough to expand it and hit it with a hammer evenly to remove it.
Clean the outer surface of the flywheel to give a smooth fit.
Clean the new ring gear and heat it to a temperature of 232 – 260°C (450 – 500°F).
Fit the ring gear over the flywheel. Make sure the gear is seated correctly.
