Originally Posted by
Cat 1
Thanks Jesse,
Yes I can cut single point threads and would only need the tap to create a go/no go gauge to get the outer threads right... I have a trick VFD drive on my old lathe and it makes treading a much easier task as i have the ability to drive very slowly and stop instantly.
Here is how I would proceed - rough finish the insert and "short tap" it. Then using the tap as as a guide the setup can be made of the carriage to thread the OD . Because of the "flange" the setup would be a bit tricky and would have to be cut "upside down" and "backwards".
This type of repair is better done with all parts on hand to get the fits correct - if you can find a "local" with the right equipment it might be easier - I am willing to give it a try though Lonnie but it might take me a while as I have a pile of work stacked up here..
Thanks, here's my plan based on my limited tooling:
Rough the part, thread the OD and place a reference mark on the insert flange and the die, part it off, thread the tap into the die to tranfer the reference mark, install the insert into the cylinder and begin tapping the ID using reference marks. If the threading is syncronized I'll JB Weld the top couple of threads and let it cure overnight, then short tap the ID and swage the insert using the Timesert installation tool. If the threads are out of sync when I begin tapping the ID, it's a do over.
Am I on crack?