13-05-2023, 07:46 AM
Hi Peter,
As Chris says, just grabbing the proud bit, will likely cause a bit of damage to the top of the thread. You may get away with it, if you start to wind the helicoil out, as soon as you have a good hold - rather than just pull.
The ideal, is if you can use a sharp punch (or screwdriver) to bend the proud bit across the centre of the hole, and use the original helicoil insertion tool to wind it out. The problem with this is that the block is in the way.
Jonblob is correct; there is an 'official' helicoil removal tool. It is basically a triangle on a stick, with sharp edges that grip on the top ring of the helicoil, and you unwind it out. Again, the block may get in the way, so the standard tool may need the handle modifying.
Hope this helps.
Good luck,
Colin
As Chris says, just grabbing the proud bit, will likely cause a bit of damage to the top of the thread. You may get away with it, if you start to wind the helicoil out, as soon as you have a good hold - rather than just pull.
The ideal, is if you can use a sharp punch (or screwdriver) to bend the proud bit across the centre of the hole, and use the original helicoil insertion tool to wind it out. The problem with this is that the block is in the way.
Jonblob is correct; there is an 'official' helicoil removal tool. It is basically a triangle on a stick, with sharp edges that grip on the top ring of the helicoil, and you unwind it out. Again, the block may get in the way, so the standard tool may need the handle modifying.
Hope this helps.
Good luck,
Colin