8 is not enough

This is an old clock that's been in my mom's house since as long as I can remember - I think someone over-wound it so many years ago ... and it seemed like it had ticked it's last tock ... and ... WD40 to the rescue ... gave it a good old cleaning ... encouraged it to tick and tock for a few minutes and she's running again. Keeps pretty good time to ... I have adjusted the pendulum a few times but I think I have it now.