Rear mech threads.

[Sir Neil d'Menture]

I have a rear 6800 11 speed Ultegra mech. The barrel adjuster won't stay in place because the threads in the body are worn away. This means adjustment for indexing etc is nigh on impossible.
Both myself and LBS have played around trying to recut the threads but it seems the top half of the threads no longer exists.
So either the mech is fubar or there is some way to fix it.
Does anyone know how to fix something like this. IIRC it is 5mm diameter.
Or is it bin time?

 

[legrandefromage]

https://www.wiggle.com/p/lifeline-c...S1m7kXwTpaJfowlGHLxoC4yEQAvD_BwE&gclsrc=aw.ds

 

[Sir Neil d'Menture]

the threads in the body are worn away

https://www.wiggle.com/p/lifeline-c...S1m7kXwTpaJfowlGHLxoC4yEQAvD_BwE&gclsrc=aw.ds

Thank you but you are solving the wrong problem.

 

[legrandefromage]

It's got it's own threads

 

[Sir Neil d'Menture]

Yes but maybe I'm missing something. It will need threads to thread into, won't it?
And the threads to thread into are what are worn away.

 

[Sir Neil d'Menture]

Anybody ever used anything like this?
https://www.screwfix.com/p/helicoil-eco-thread-repair-kit-m5-x-0-8mm-14-pieces/887fr

 

[legrandefromage]

I've given up and run away to the circus

 

[foz]

The inline adjuster LGF posted goes in the outer cable, not at the rear mech. So no adjustment needed at the rear mech .

 

[mdvineng]

Anybody ever used anything like this?
https://www.screwfix.com/p/helicoil-eco-thread-repair-kit-m5-x-0-8mm-14-pieces/887fr

Yes, simple but only work well if there is enough wall thickness and depth left in the parent material.

 

[jim haseltine]

Looks to me as if there is more than enough meat around the adjuster threads to take a helicoil, it's certainly something I'd try.