Rear mech threads.

[Sir Neil d'Menture]

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.

Yes, thanks. I'd sort of decided that. And if it all goes wrong I'll be left with a spare pair of jockey wheels.
I've just twigged what @legrandefromage is on about. Sorry for missing the point.

 

[pigman]

LGFs barrel adjuster is the answer. The adjuster has an internal thread, thereby shortening or lengthening the cable outer.
Same solution to your front mech having no built-in adjuster

 

[Sir Neil d'Menture]

@squirrelchaser your comment seems to have disappeared but thank you for your help.

 

[squirrelchaser]

@squirrelchaser your comment seems to have disappeared but thank you for your help.

Thanks Sir , I was distracted by children before I reached the end of the thread , I made the comment and then realised there was more to the thread that had covered what I'd said .
The helicoils work well so long as theres meat for them to go into .

 

[Sir Neil d'Menture]

LGFs barrel adjuster is the answer. The adjuster has an internal thread, thereby shortening or lengthening the cable outer.
Same solution to your front mech having no built-in adjuster

Hi @pigman Not sure which mechs you are using but my Shimano ones have a couple of grub screws that take a 2mm allen key to adjust cable tension on front mech.

 

[pigman]

Hi @pigman Not sure which mechs you are using but my Shimano ones have a couple of grub screws that take a 2mm allen key to adjust cable tension on front mech.

Maybe I've missed something here. I have all sorts of Shimano front mechs, latest model is 6700 10 speed. Where are those grub screws, I can't see them?

 

[Sir Neil d'Menture]

Sorry, I'm slightly wrong. There are two grub screws that adjust reach - max and min travel. There is a single grub screw on the cable housing that adjusts the tension.

 

[legrandefromage]

Yes, thanks. I'd sort of decided that. And if it all goes wrong I'll be left with a spare pair of jockey wheels.
I've just twigged what @legrandefromage is on about. Sorry for missing the point.

 

[Sir Neil d'Menture]

Update.
I bought one of the helicoil insertion kits.
Put my brown trousers on and locked myself in the garage.
Job was far easier than I imagined. Virtually no original threads left so little metal to drill out. Tapped with supplied tap and coil inserted.
All seems to be working just fine.
Mech has been rescued from the recycle bin.

 

[Guinessisgoodforyou]

Good stuff