Originally Posted by
WheresWaldo
That's because it is not in the normal Helicoil catalog. I got a set from Bike Tools Etc. as I was planning on doing just what I outlined. I still may do it some day. Here is a link to the tools:
[INDENT]
Thread repair kit
Ah cool, and Recoil, which is good stuff too. So it looks like the kit has most of what you'd need.
However since we're changing the thread direction, I'm thinking that most of the existing threads should be removed with a drill before attempting to tap in the opposite direction. I'm thinking it would be best to do this on a drill press with the crank clamped down perpendicular using the existing hole as an alignment guide. Good thing I know a machinist....
6500 series Ultegra is looking like a strong possibility....