Regulator Clock not chiminig correctly?

I have a replica Regultor pendulum clock. It chimes, but not correctly. The half hour always chimes once. Some hours chime correctly, some do not chime at all, and at 7:00 it chimes 32 times. The clock fell off the wall (about a 6 foot drop) some years back and I have had it repaired. It keeps time perfectly (although I have to leave it off the horizontal level to get the pendulum to swing completely). The chimes have not worked properly since it was repaired. Is this something I could fix, if given the proper instructions?