Gustav Becker two weight clock

[c.kelly]

Hi All,
Well today I'm working on a Gustav Becker two weight cable driven clock that is a bit different, The rack and snail mechanism is definitely different from what you normally see. The snail is separate from the center shaft and driven by a star gear. May post some pictures later if anyone has an interest.
Anyway the problem is that the cable is a plastic coated nylon line about 1mm thick. The coating is coming off and the clock is stopping. The coating is getting hung up in the brass cable guide. I have a metal cable of the same thickness that I thought of using then I thought it might cut into the brass guide. Did a search last night for the proper replacement cable and all I could find was a discussion about gut vs. plain braided nylon. Has anyone ran into this issue before and do you have any ideas of what to use? If braided nylon is ok I might just try a chalk line from the hardware store?
Thanks,
Charles K

[c.kelly]

Hi,
Here are a few pictures of the clock. First off is a picture of the front of the movement with the offset snail. The other two pictures show the cable that's coming apart.
Charles K