Originally Posted by
Cat 1
Silly busy week but a couple quick updates...
Lonnie - I have not forgot about you - Will give you a call and discuss the inserts as soon as I can. I have studied up the "indexed" insert idea and think I can make that cut being careful with the setup. Will need to 5/16-32 tap just to make a hole for sizing the external threads to get a "Snug Fit" and I think I can mimic the Timesert lock mechanism by "short tapping" the internal threads.
Can you confirm the bore is indeed 5/16-32 - a bit concerned if its home made it might just be 5/16-24
I have 7/16" C360 H02 brass, 5/16-32 plug tap and die on order. Should be here by week's end. I don't have a way to accurately synchronize/index the threads other than by trial and error, using an index mark on the tap. With a little luck I should be able to get them sync'd In a couple of tries and I do intend on short tapping the threads, a little more at a time, until the Timesert insertion tool swages the last couple of threads without excessive pressure.
The broken piece of insert I removed from the cylinder has a 32 thread pitch and the int/ext threads are
not synchronized. My thread pitch gauge is barely visable once inserted into the insert bore but it appears to be 32.