How to ream a #2 Morse taper

[Olle]

Originally Posted by postino

Why would I need any synchronization??? My manual feed [my hand] isn't synchronized...

My bad, I meant the cross feed, not the compound feed. If you can make the cross feed sychronized with the lead screw, you would be able to cut long tapers without any effort.

Originally Posted by postino

Here's one for you...I have a replacement engine for my infamous riding lawn mower; it has an exhaust pipe with a 1" male pipe thread for the muffler...The threads are all rusty, I can't get the new muffler on...It's a tight 90º bend, how do I chase the threads???

It won't unscrew without breaking the cast iron cylinder (don't ask me how I know) and there's not enough room for a conventional pipe threader...

Anyone have any ideas???

I would try a thread file ( http://tetoolsusa.com/tools/index.ph...25ce84fd19842c ). You can also use a triangular needle file, it has the correct 60 degree angle for this. It's easier than it sounds, the file will follow the thread easily and the rust will be your "layout dye" to show you when you have cut deep enough. It's a bit tedious, but I have fixed many old car parts by simply filing the threads.