by Bob Tascione » Mon Sep 24, 2018 3:38 pm
Hey Michael,
I took a look at the video files you emailed me.
Difficult to say for sure but could be a loss of power as Dan and Ian said or possibly a bent escape wheel tooth or pivot. Although from the amount of arc that pendulum is tracing I would think it's more over powered than under.
Try marking the escape tooth with a black marker and then run a few more tests to see if it's stopping at or near the same place each time. If not then move to the next wheel and do the same. This should help narrow down whether you have a normal drop off of power due to dirt or wear or an issue with a bent pivot, arbor or tooth. Also try pulling the weights up off of the table so they they have a free unobstucted fall.
Since you've converted this clock to weight driven I would actually hang the movement high enough to allow the weights to be completely unwound without hitting the floor and then just wind them one turn on the spindle and let it run to make sure that the coils are not tangling and interfering with one another.
Dan, this movement turned out to be a newer movement with solid pinions and not caged.
Well Michael looks like you've got some fun stuff to mess around with for a few hours!
Enjoy and please let us know what happens.
Adios for now,
Bob
p.s. edit: yeah sorry Mike I should have mentioned to you in our email conversation that you would need to link to a video file. Ian is correct about video files taking up my server storage space.