- Nov 9, 2022
My Seth Thomas 89 movement got to where it would no longer stay in beat. I sprayed it down with contact cleaner and blew it dry with an air compressor, then reoiled very slightly as instructed with synthetic clock oil. The movement then never stayed running no matter how carefully I tried to adjust the crutch rod to put it into beat. As can be seen in attached photos, there are slight fine gray powdery deposits on a few of the gears and other small areas of the inner works that I couldn't get a picture of. Might these gray films be bogging down the mechanism? What spray solvent would work for cleaning mechanisms? I have a small ultrasonic tank, should I use this instead of an aerosol solvent?