On my xtr front mech M952 about 10 years old....

When i set the outer high limit perfectly after a while the screew has turned and so throws the limit out.

I removed it and there was something dry n stringy on the thread.

Would ths be old dryed out threadlock and the reason why my screews wont stay adjusted or a broken spring that kept the tension on the screew?.

Any sugestions welcome Thankyou.