Hi, I’ve been working on a 1987 Ridgeway Grandfather clock (451-033 94 cm) that runs slow. It’s losing about 15 seconds every 15 minutes. I have adjusted the pendulum all the way up and it still never changes. I have even ran it only on the time chain without the strike and gong. I have cleaned and oiled the clock and made sure there’s no build up of grease. If anyone could give me some ideas as to where to look to fix this issue I would appreciate the help.
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