'61 Tach Drive Cable Nut Loosens Up

[Larry B.]

After driving my tach driven '61 about 20 miles, I have to tighten up the cable thumb nut at the distributor every time I drive it. I also noticed a ticking noise coming from the back of the tach when the cable loosens.

I have tried tightening it with channel locks to keep it from loosening to no avail. Tach has been rebuilt and cable has been replaced within the last year. Any ideas why the thumb nut keeps loosening up? Thanks

[Steven B.]

Re: '61 Tach Drive Cable Nut Loosens Up

Larry, have an acquaintance with the same problem a couple of years ago. His replacement cable seemed to be out of spec and very loose. He wrapped some white plumbers tape on the male and it worked. I don't know if the current pieces are better. Steve