Heli-coil? What Is It

[smellthecheese]

Forgive me if i come across as a brainless monkey but what is a heli-coil?

[Dan6061]

If you strip the threads in say, your Magura mount.

You can insert a heli-coil, which is a steel thread that cuts itself into the old, stripped hole.

Basically a much stronger thread, that is really hard to strip.

[smellthecheese]

If you strip the threads in say, your Magura mount.

You can insert a heli-coil, which is a steel thread that cuts itself into the old, stripped hole.

Basically a much stronger thread, that is really hard to strip.

Oh, wow up until now i have been using brass inserts and re cuttin the thread. Heli-coils sound so much easier. Do you know if you need any specific tools to fit them and how to get hold of them

Thanks for the help

Dan

Oh yeah, i also found your column on repairing lazy magura pistons quite handy. Ive never suffered from the problem as yet but sure it will come in handy

[Dan6061]

You'll need a heli-coil kit.

I got some engineer to do mine, as I didn't trust myself.

You need to drill the holes slightly bigger, then insert the thread with the heli-coil tool, like, one full turn, the half back, then full turn, half back...etc.

And yeah, then just bosh out the bottom of the heli-coil, and you're sorted.

Just make sure it's drilled, and fitted perfexctly straight.

[Lawnmowerman]

You need a 4.8mm coil kit and a 5.2mm drill bit if you want to do it properly.

[mrturner08]

my threads went the other week, so i desided to E-bay it, this is what i got. Works like magic it does.

[Si-man]

doesnt just thread in, you actually have to re drill the hole and run a tap down it otherwise it will do sod all

Edited March 1, 2007 by Si-man